Baby Vaccination Schedule First Year: Complete Month-by-Month Guide

Your baby’s first birthday feels like a finish line. You have survived sleepless nights, first smiles, first foods, and a dozen tiny milestones. Behind almost every one of those milestones, quietly working in the background, is the baby vaccination schedule for the first year.

It is also the part of new parenthood that causes the most questions. Which shots does my baby need, and when? How many will there be at one visit? Will my baby be in pain? What if we miss one? What is normal afterwards, and what is not?

This guide answers all of that in plain language. You will find the complete month-by-month schedule, based on the official CDC childhood immunization schedule, with a short note on the NHS vaccination schedule used in the UK. You will also learn what each vaccine protects against, what to expect at every visit, how to comfort your baby after shots, how catch-up works if a dose is late, and which worries are myths.

Keep this page bookmarked. Bring it to your next well-baby visit. And always confirm the final plan with your own paediatrician, because your baby’s health history can change the timing.

A quick note on language: This article uses the US CDC schedule as its main table because it is the most widely searched schedule in English. The American Academy of Pediatrics (AAP) supports the same timing through HealthyChildren.org. If you live in the UK, your baby will follow the NHS schedule instead, which uses different ages and a combined 6-in-1 vaccine. The diseases protected against are largely the same. Your paediatrician or GP is the final authority for your child.

Quick Answer: What Is the Baby Vaccination Schedule in the First Year?

The baby vaccination schedule in the first year is a timed series of vaccines given at birth and at 2, 4, 6, and 12 months. It protects your baby against hepatitis B, rotavirus, diphtheria, tetanus, whooping cough, Hib, pneumococcal disease, polio, influenza, measles, mumps, rubella, chickenpox, and hepatitis A.

At birth, your baby usually receives hepatitis B vaccine and, depending on the season and maternal vaccination, an RSV antibody dose. At 2 and 4 months, your baby receives the first and second doses of DTaP, Hib, polio (IPV), pneumococcal (PCV), and rotavirus vaccines. At 6 months, your baby receives third doses of several of those vaccines, plus the first flu vaccine. At 12 months, your baby receives the first MMR and chickenpox vaccines, the first hepatitis A dose, and booster doses of Hib and pneumococcal vaccines.

Most babies need several doses of the same vaccine. That is normal. The first dose teaches the immune system to recognise the germ. Later doses strengthen and lengthen that protection. A single dose is rarely enough in the first year, because a baby’s immune system is still learning.

If you remember only one sentence from this guide, make it this one: on-time vaccines give protection at the age when your baby is most at risk, and a missed dose is not a reason to start over.

Why Vaccines in the First Year Matter So Much

A newborn arrives with some protection passed from the mother during pregnancy. That protection fades over the first months of life. At the same time, your baby starts to meet more people, visit more places, and touch more surfaces. The gap between fading maternal protection and a baby’s own developing immunity is exactly when serious infections can strike hardest.

That is why the schedule is front-loaded. The first year is not an arbitrary choice. It is timed to the age when the immune system responds best and when the risk of each disease is highest, according to the CDC and the AAP.

Babies get sicker, faster, from diseases adults shrug off

Whooping cough can cause coughing fits so severe that a baby struggles to breathe. Hib can cause meningitis, an infection around the brain and spinal cord. Pneumococcal disease can cause pneumonia, blood infection, and meningitis. Measles can cause pneumonia and brain swelling. These are not mild childhood rites of passage. They are the reason the schedule exists.

Adults often recover from these infections with rest and fluids. Babies have smaller airways, weaker coughs, and immune systems that have never met these germs before. A disease that gives an adult a bad week can put a baby in hospital.

Vaccines teach the immune system without the illness

A vaccine gives the immune system a safe preview. It contains a weakened germ, a killed germ, or a small piece of a germ — never enough to cause the full disease in a healthy baby. The immune system learns to recognise it and builds memory cells. If the real germ arrives later, the body responds faster and more strongly.

Think of it like a rehearsal. The first dose is the first rehearsal. The second and third doses are the dress rehearsals that make the performance reliable. That is why spacing matters, and why your paediatrician will not simply give every dose at once.

Protection extends beyond your baby

When most children in a community are vaccinated, diseases find fewer people to infect. That community protection matters for babies too young for some vaccines, for children who cannot be vaccinated for medical reasons, and for grandparents and other adults with weaker immune systems.

Your baby’s shots protect your baby first. They also help protect the newborn in the next cot, the child in daycare with a medical condition, and the elderly relative who holds your baby at a family gathering.

The diseases have not gone away

Smallpox is the only disease vaccines have wiped out worldwide. The AAP notes this clearly on HealthyChildren.org. Polio, measles, whooping cough, and Hib are rare in many countries today precisely because vaccination rates have been high. When vaccination rates fall, these diseases return.

The AAP reported that the United States saw more measles cases in 2025 than it had in over 30 years, and that most people who became ill were not vaccinated. That is a reminder, not a scare tactic. The schedule works best when it is followed on time, by as many families as possible.

The Complete Baby Vaccination Schedule: Birth to 12 Months

The table below is the heart of this guide. It follows the CDC Child and Adolescent Immunization Schedule by Age, addendum updated July 2, 2025, which the CDC states is the current schedule for healthcare professionals in the United States. The AAP Recommended Child and Adolescent Immunization Schedule follows the same timing for healthy children.

Read the table from left to right. Each column is a visit age. Each row is a vaccine. A dose number tells you where that shot sits in its series.

Vaccine	Birth	1–2 months	2 months	4 months	6 months	12 months
Hepatitis B (HepB)	1st dose	2nd dose	—	—	3rd dose (6–18 months)	—
RSV antibody (nirsevimab)	1 dose, depending on maternal RSV vaccination	—	—	—	—	—
Rotavirus (RV)	—	—	1st dose	2nd dose	3rd dose if RV5 brand	—
DTaP (diphtheria, tetanus, pertussis)	—	—	1st dose	2nd dose	3rd dose	—
Hib (Haemophilus influenzae type b)	—	—	1st dose	2nd dose	3rd dose, depending on brand	Booster (12–15 months)
Pneumococcal conjugate (PCV)	—	—	1st dose	2nd dose	3rd dose	4th dose (12–15 months)
Polio (IPV)	—	—	1st dose	2nd dose	3rd dose (6–18 months)	—
Influenza (flu)	—	—	—	—	1st dose, then 2nd dose 4+ weeks later in the first flu season	1 dose each year
COVID-19	—	—	—	—	See notes — discuss with your paediatrician	See notes
MMR (measles, mumps, rubella)	—	—	—	—	—	1st dose (12–15 months)
Varicella (chickenpox)	—	—	—	—	—	1st dose (12–15 months)
Hepatitis A (HepA)	—	—	—	—	—	1st dose (12–23 months; 2nd dose at least 6 months later)

How to read this table: A dash means no routine dose of that vaccine at that visit. A range such as 6–18 months means the dose can be given at any point in that window, and your paediatrician will choose the visit that fits your baby. The 4th DTaP dose is due at 15–18 months, just after the first birthday, so it is not listed as a 12-month dose above. Keep your 15-month visit on the calendar too.

A note on COVID-19: Recommendations for COVID-19 vaccination in young children have changed more than any other vaccine in recent years, and the CDC and AAP have not always agreed on the wording. Do not rely on a general article for this one decision. Ask your paediatrician what is recommended for your baby’s age, health, and local conditions at the time of the visit.

A note on brand differences: Rotavirus comes in two forms. RV1 needs 2 doses, at 2 and 4 months. RV5 needs 3 doses, at 2, 4, and 6 months. Hib also varies by brand: some babies need a third dose at 6 months, while others go straight to the booster at 12–15 months. Your paediatrician’s office tracks the brand and will tell you which version your baby received.

What each vaccine protects against

Short names can hide serious diseases. Here is what each abbreviation means in plain language, and why it is on the schedule.

Hepatitis B (HepB). Hepatitis B is a liver infection spread through blood and body fluids. In babies, it often causes no symptoms at first, yet it can become a lifelong infection that leads to liver damage and liver cancer later in life. The birth dose is given within 24 hours of birth in the United States. The full series is three doses.

RSV antibody (nirsevimab). RSV is a common virus that causes cold-like symptoms in older children and adults. In babies, it can cause bronchiolitis and pneumonia and is a leading cause of hospital admission in the first year. Nirsevimab is not a vaccine in the usual sense. It is a laboratory-made antibody given as a single injection, usually at birth or before the first RSV season, that gives direct protection for several months. Whether your baby needs it depends on the season, your baby’s age, and whether the mother received an RSV vaccine during pregnancy. Ask at the birth hospital or first visit.

Rotavirus (RV). Rotavirus causes severe diarrhoea and vomiting in babies and young children. Before the vaccine, it sent many babies to hospital with dehydration. The vaccine is given by mouth, not as an injection, which surprises many parents. Timing matters: the first dose cannot start after 15 weeks of age, and the last dose must be given before 8 months, so do not delay this series.

DTaP (diphtheria, tetanus, and acellular pertussis). Diphtheria causes a thick coating in the throat that can block breathing. Tetanus causes painful muscle stiffness and lockjaw after a cut or wound. Pertussis, or whooping cough, causes violent coughing fits and breathing pauses in babies. DTaP protects against all three. Your baby needs five doses in total, with the first three in the first year and boosters at 15–18 months and 4–6 years.

Hib (Haemophilus influenzae type b). Despite the name, Hib is not the flu. It is a bacterium that can cause meningitis, pneumonia, and a dangerous throat swelling called epiglottitis. Before the Hib vaccine, it was a leading cause of bacterial meningitis in young children. The first-year series is three or four doses, depending on the brand.

Pneumococcal conjugate (PCV). Pneumococcal bacteria can cause ear infections, pneumonia, blood infections, and meningitis. The conjugate vaccine used in the first year, PCV15 or PCV20, protects against the most common disease-causing strains. Four doses are given: at 2, 4, 6, and 12–15 months.

Polio (IPV). Polio is a virus that can cause paralysis. It still exists in some parts of the world, and international travel can bring it back to countries where it is rare. The inactivated polio vaccine (IPV) cannot cause polio. Four doses are given in childhood, with the first three in the first year.

Influenza (flu). Flu is more than a bad cold. In babies under one year, it can cause high fever, breathing difficulty, and hospital admission. The flu vaccine is given every year from 6 months of age. In the first flu season, a baby needs two doses at least four weeks apart. After that, one dose each year is enough.

MMR (measles, mumps, and rubella). Measles causes high fever, cough, and a rash, and can lead to pneumonia and brain swelling. Mumps causes painful swelling of the salivary glands and can affect hearing. Rubella is usually mild in children but can cause severe birth defects if a pregnant woman catches it. The first MMR dose is given at 12–15 months, and the second at 4–6 years.

Varicella (chickenpox). Chickenpox causes an itchy rash, fever, and tiredness. Most children recover, but it can lead to skin infections, pneumonia, and brain inflammation. The first dose is given at 12–15 months, and the second at 4–6 years. In some clinics, MMR and varicella are combined into one MMRV injection. Your paediatrician will explain which form your baby receives.

Hepatitis A (HepA). Hepatitis A is a liver infection spread through contaminated food, water, or close contact. It is usually mild in young children, who may have no symptoms, yet they can pass it to others. The series is two doses, at least six months apart, starting at 12–23 months.

What to Expect at Each Visit

A well-baby visit is more than a vaccination appointment. It is also a growth check, a feeding check, a development check, and a chance to ask questions. Knowing what happens at each age helps you prepare — and helps you notice that the schedule below matches the newborn doctor visits checklist your paediatrician follows.

Birth: the first hours

In the hospital, your baby will usually receive the first hepatitis B dose within 24 hours of birth. If your baby is born during RSV season, or if the mother did not receive an RSV vaccine in pregnancy, the care team may also offer the RSV antibody injection.

This visit is not a test of your parenting. It is a good time to ask how to record vaccines, where the record card lives, and when the next appointment should be. Take a photo of the vaccine record card as a backup.

1–2 months: the second hepatitis B dose

The second hepatitis B dose is given at 1–2 months. Some clinics give it at the 1-month check, others at the 2-month visit. Either timing is within the recommended range, as long as at least four weeks have passed since the birth dose.

This visit also includes a weight and length check, a feeding review, and a discussion of sleep. If you are still settling into a routine, this is a useful moment to review your newborn feeding schedule with the paediatrician rather than guessing at home.

2 months: the big first round

The 2-month visit is often the one parents worry about most. Your baby will usually receive DTaP, Hib, IPV, PCV, and rotavirus, plus the second hepatitis B dose if it has not already been given. That sounds like a lot. It is, in fact, the standard first round, and it is designed to be given together.

The rotavirus vaccine is swallowed as drops, not injected. The other vaccines are injections, usually given in the thigh. The nurse will work quickly. Your baby will cry, and that cry is hard to hear. It is also short. Most babies settle within a few minutes, especially if they are held and fed soon afterwards.

Your paediatrician will also check your baby’s head control, social smile, and general development. Bring your vaccine record card, your list of questions, and a spare outfit — just in case.

4 months: the second round

The 4-month visit repeats the same set: second doses of DTaP, Hib, IPV, PCV, and rotavirus. By now, you know the routine. The injections are in the same place. The crying is usually shorter, because the visit is familiar.

This is a good visit to ask about teething, sleep changes, and the next stage of feeding. If your baby has had a cold or a mild illness, tell the nurse. A mild illness does not usually mean the vaccines must be postponed, but the paediatrician will decide.

6 months: third doses and the first flu shot

The 6-month visit brings third doses of DTaP and PCV, a third Hib dose for some brands, a third polio dose, and a third hepatitis B dose if it is due. The rotavirus third dose is given only if your baby received the RV5 brand.

From 6 months, your baby can also receive the flu vaccine. If it is flu season, the first dose is given now, and the second dose follows at least four weeks later. That second flu dose is important. One dose alone does not give full protection in a baby’s first flu season.

Six months is also when many families start solids. If you are thinking about allergens, read the guidance on introducing allergens to baby and discuss timing with your paediatrician at the same visit.

9 months: a check, not usually a vaccine visit

There is no routine vaccine scheduled at 9 months in the CDC schedule. The 9-month visit is a developmental check. Your paediatrician will look at crawling, babbling, sitting, and social responses. If a dose was missed earlier, this visit is a useful chance to catch up.

Use this quieter visit to ask about anything that has been worrying you — sleep, feeding, baby growth spurts, or a new rash. You do not need to wait for a vaccine visit to raise a concern.

12 months: the one-year round

The 12-month visit is a milestone. Your baby will usually receive the first MMR dose, the first varicella (chickenpox) dose, the first hepatitis A dose, and booster doses of Hib and PCV. Some clinics give the hepatitis A first dose at 12 months and others at a slightly later visit within the 12–23 month window. Both are within the schedule.

The MMR and varicella vaccines are live vaccines, which means they contain a weakened form of the virus. That is normal and safe for healthy babies. A mild rash or fever can appear 7–12 days later. Your paediatrician will explain what to watch for, and it is different from the soreness and fever that can follow the earlier visits.

This visit also includes a full developmental review and, often, blood tests for anaemia and lead, depending on local guidance. Bring your vaccine record card so the new entries are recorded correctly.

The NHS Schedule in the UK: How It Differs

If you live in the UK, your baby will not follow the CDC ages above. The NHS gives the first vaccines at 8 weeks, not 2 months, and combines several vaccines into one injection.

Here is the NHS first-year schedule in brief, based on NHS guidance:

Age	NHS vaccines
8 weeks	6-in-1 vaccine (1st dose), rotavirus (1st dose), MenB (1st dose)
12 weeks	6-in-1 vaccine (2nd dose), rotavirus (2nd dose), pneumococcal (PCV, 1st dose)
16 weeks	6-in-1 vaccine (3rd dose), MenB (2nd dose)
1 year	Hib/MenC booster, MMRV (1st dose, measles, mumps, rubella and chickenpox), pneumococcal (2nd dose), MenB (3rd dose)

The 6-in-1 vaccine protects against diphtheria, tetanus, whooping cough, polio, Hib, and hepatitis B in a single injection. MenB protects against meningococcal group B bacteria, which can cause meningitis and sepsis. The NHS does not routinely give a hepatitis B birth dose to all babies, unlike the US schedule. Babies born to mothers with hepatitis B follow a separate, more intensive schedule.

The NHS notes that from 1 January 2026, the MMR vaccine in the UK changed to MMRV, which also protects against chickenpox (varicella). If your baby’s first birthday falls after that change, ask your GP or practice nurse which form is being used.

The principle is the same in both countries: protect early, give several doses, and finish the series on time. The exact ages and combinations differ because each country designs its programme around its own disease patterns, vaccine supply, and health system. Follow the schedule for the country where your baby lives, and confirm it with your GP or paediatrician.

Common Side Effects After Baby Vaccines

Most side effects are mild, short-lived, and a sign that the immune system is responding. They usually start within a day or two and settle within two to three days. Knowing what is normal helps you stay calm — and helps you spot the rare reaction that needs a call.

What is normal

• Soreness, redness, or swelling where the needle went in. This is the most common reaction. The thigh may feel tender to touch for a day or two. Your baby may cry more when the leg is moved or when the nappy is changed.
• Mild fever. A temperature up to about 38.5°C (101.3°F) is common after the 2, 4, and 6-month vaccines. It usually lasts a day or two. Check your baby’s temperature with a thermometer, not by touch alone.
• Sleepiness or extra sleep. Some babies sleep longer than usual for a day after vaccines. Others are more wakeful. Both patterns are normal.
• Less appetite. Your baby may feed a little less for a day. Offer feeds often, in smaller amounts if needed, and keep offering fluids.
• Fussiness or clinginess. Your baby may want to be held more, cry more easily, or seem unsettled. This usually peaks in the first 24 hours and then eases.
• Mild diarrhoea or vomiting after rotavirus drops. The rotavirus vaccine is given by mouth, and a short spell of loose stools or a vomit can follow. It usually settles quickly.
• A mild rash or fever 7–12 days after MMR or chickenpox vaccine. This delayed reaction is different from the early soreness after the 2, 4, and 6-month shots. A faint rash or a low fever about a week later is a known, mild response to the live vaccines given at 12 months.

If your baby has a baby first cold or an ear infection around the same time, the symptoms can overlap. A vaccine fever and a cold fever can look similar. When in doubt, call your paediatrician’s office and describe the timing, the temperature, and what your baby is doing. That is what they are there for.

How to comfort your baby after shots

Comfort is not a small detail. It is the part of the visit you control, and it genuinely helps.

Hold your baby close during and after the injections. Skin-to-skin contact, a firm cuddle, and a calm voice help your baby settle faster than being laid down alone. If you are breastfeeding, feeding during or immediately after the injections is one of the best comfort measures available. Research and paediatric guidance support breastfeeding as a pain-relief strategy for infants during vaccination.

Offer a feed or a dummy soon after. Sucking is soothing. A feed, a dummy, or a clean finger to suck can distract your baby and reduce crying. Do not force a feed if your baby is not interested, but offer it gently.

Use a cool, damp cloth on the sore spot. A clean, cool cloth pressed gently against the injection site for a few minutes can ease soreness and swelling. Do not rub the area, and do not apply creams, oils, or ice directly to the skin unless your paediatrician tells you to.

Dress your baby in loose, soft clothing. Tight clothing over a sore thigh can irritate the injection site. A loose sleepsuit or a nappy and vest is enough for the rest of the day.

Keep the day calm. Plan a quiet afternoon after a vaccine visit. Skip the busy outing, the long car journey, and the visitors if you can. Your baby may be sleepier or fussier than usual, and a calm day gives them space to recover.

Do not give pain medicine before the visit. Some parents are tempted to give paracetamol or ibuprofen before the appointment to prevent pain. Do not do this unless your paediatrician specifically advises it. The usual advice is to wait and see how your baby responds, and then use medicine only if there is a fever or clear discomfort. Always follow the dose on the label for your baby’s weight and age, and check with your paediatrician or pharmacist if you are unsure. Never give aspirin to a baby.

Watch, do not hover. Check your baby’s temperature if they feel warm, note how much they are feeding, and watch for wet nappies. You do not need to wake a sleeping baby every hour to check on them. A baby who is sleeping peacefully after vaccines is usually a baby who is recovering well.

Delayed or Missed Doses and Catch-Up Guidance

Life gets in the way. Babies get ill. Appointments are cancelled. Families move house. Travel happens. If your baby misses a vaccine, you are not alone, and you have not failed.

The most important rule, from both the CDC and the AAP, is simple: you do not need to start the series over. A missed dose is made up at the earliest opportunity, and the doses already given still count.

What to do if a dose is late

Call your paediatrician’s office as soon as you realise a dose was missed. They will look at your baby’s record, work out which doses are due, and book a catch-up visit. Bring the vaccine record card with you. If you have moved or changed paediatrician, bring any records you have, even if they are incomplete. The new clinic can often request the full record from the previous practice or from a state immunisation register.

The CDC publishes a catch-up schedule, Table 2 in the same immunisation schedule document, which sets out the minimum intervals between doses. Your paediatrician uses that table to space the catch-up doses correctly. You do not need to memorise it. You need to know that it exists, that it is designed for exactly this situation, and that your paediatrician will follow it.

Why you should not spread out vaccines on your own

Some parents ask about an alternative schedule — fewer shots per visit, spread over more months — in the hope that it will be gentler. The AAP advises against this, and the reasoning is worth understanding.

There is no research showing that a spread-out schedule is safer or that it protects a baby equally well. What is known is that every week without a vaccine is a week without protection against that disease. Spreading out the schedule leaves your baby unprotected for longer, and it means more visits, more injections overall, and more chances to miss a dose entirely.

The recommended schedule is designed to work with the immune system at specific ages and at specific intervals between doses. The AAP states this plainly: the pace has a purpose. If you have a worry about a specific vaccine, talk to your paediatrician about that vaccine, rather than redesigning the whole schedule yourself.

Special situations

A few situations need a tailored plan. Tell your paediatrician if any of these apply:

• Your baby was born prematurely. Premature babies usually follow the same schedule based on their actual age, not their corrected age, but the paediatrician will confirm this.
• Your baby has a chronic condition or takes medicine that weakens the immune system. Some vaccines may need extra doses, a different timing, or a different form.
• Your baby had a serious reaction to a previous dose. A mild fever or soreness is not a reason to stop. A severe allergic reaction is. Your paediatrician will record the reaction and advise on the next dose.
• Your baby is travelling abroad. Some destinations require extra vaccines, or an earlier MMR dose if there is a measles outbreak. Tell your paediatrician about travel plans well before you go.
• Your baby is starting daycare or nursery. Most childcare settings require an up-to-date vaccine record. A catch-up visit before the start date avoids a last-minute scramble.

If your baby is ill on vaccine day

A mild illness — a runny nose, a low fever, a mild earache, or diarrhoea — does not usually mean the vaccines must be postponed. The AAP notes that babies can often still be vaccinated with a mild illness, and that doing so saves an extra appointment.

A moderate or severe illness, a high fever, or a baby who is clearly unwell is different. Your paediatrician may postpone the vaccines until your baby has recovered, and then book a catch-up visit. If you are unsure, call the office on the morning of the appointment and describe the symptoms. Do not simply skip the visit without calling.

Vaccine Myths vs Facts

Vaccine worries are normal. They deserve clear, sourced answers, not dismissal. The myths below are the ones parents most often raise in the clinic, and the facts come from the CDC and the AAP.

Myth: Vaccines overwhelm a baby’s immune system

Fact: They do not. A baby’s immune system meets thousands of germs every day — in food, on hands, in the air. The number of germs in all the first-year vaccines combined is a tiny fraction of what a baby encounters naturally. The AAP states that multiple shots in one visit do not overwhelm a baby’s immune system, and that each childhood vaccine has been tested on its own and in combination with others.

Myth: Vaccines cause autism

Fact: They do not. The AAP states this directly on HealthyChildren.org: vaccines do not cause autism. Children receive several vaccines between ages one and two, which is also the age when some children begin to show signs of autism. The timing overlaps, but one does not cause the other. Researchers around the world have spent more than 25 years studying this claim, and all have reached the same conclusion: vaccines are not linked to autism.

Myth: Natural infection gives better immunity than a vaccine

Fact: Natural infection can give strong immunity, but at a much higher price. Measles can cause pneumonia and brain swelling. Whooping cough can cause breathing pauses. Hib can cause meningitis. A vaccine gives the immune system the same lesson without the disease and without the risk of hospital admission or lasting damage. For a baby, that difference matters more than for an adult.

Myth: These diseases are gone, so vaccines are no longer needed

Fact: They are rare, not gone. They are rare because vaccination has worked. When vaccination rates fall, the diseases return — as the recent rise in measles cases shows. Polio still exists in some countries, and travel can carry it anywhere. Stopping vaccines because the diseases are rare is like stopping an umbrella because you are dry underneath it.

Myth: Too many vaccines at once is dangerous

Fact: Combination vaccines and same-visit vaccines are tested together before they are licensed. The schedule is designed so that the vaccines given at 2, 4, and 6 months can be given safely in one visit. Splitting them into separate visits does not make them safer. It leaves your baby unprotected for longer and means more injections in total over the year.

Myth: A vaccine can give my baby the disease

Fact: A vaccine does not cause the disease in a healthy baby. If a virus or bacterium is used in a vaccine, it is either killed or very weak. The AAP explains that the active ingredients give the immune system information, so it knows how to create antibodies. A live vaccine, such as MMR or chickenpox, can very rarely cause a mild version of symptoms in a child with a weakened immune system, which is why your paediatrician asks about your baby’s health before giving it.

Myth: My baby is too young, or breastfed babies do not need vaccines

Fact: Breast milk is wonderful. It gives antibodies, nutrition, and comfort. It does not replace vaccines. The protection from breast milk is temporary and does not cover all the diseases on the schedule. Breastfed babies still need the full schedule, on the same timing as other babies.

Myth: If other children are vaccinated, my baby is safe without vaccines

Fact: Community protection helps, but it is not a guarantee for an individual baby. It depends on almost every child in the community being vaccinated. If enough families rely on other children for protection, the community level falls, and the diseases return. Your baby’s own vaccines are the reliable protection.

Preparing for Vaccination Appointments: A Checklist

A little preparation makes the visit calmer for you and your baby. Use this checklist the night before each vaccine visit.

The night before:

• Check the appointment time, the clinic address, and the parking or transport plan.
• Put the vaccine record card in your bag, along with your baby’s health insurance card if you use one.
• Write down your questions. Three or four short questions are easier to remember than a long list.
• Pack a spare outfit, extra nappies, wipes, a dummy, and a favourite comfort toy or blanket.
• Dress your baby in loose clothing that gives easy access to the thighs.

On the day:

• Feed your baby before you leave, if it is feeding time. A hungry baby is a fussier baby.
• Bring a bottle or be ready to breastfeed after the injections.
• Arrive a few minutes early so you are not rushed.
• Tell the nurse about any illness, any medicine your baby is taking, and any reaction to a previous vaccine.
• Ask which vaccines are being given today, and which brand of rotavirus or Hib is used, so you can record it.

After the visit:

• Stay in the waiting area for 15 minutes, as the clinic will usually ask you to. Serious allergic reactions are very rare, but they happen quickly, and the clinic is the safest place to be if one occurs.
• Note the date, the vaccines given, and any advice the nurse gave you. Photograph the updated record card.
• Book the next appointment before you leave, if the clinic offers that.
• Plan a quiet afternoon at home.
• Watch for fever, soreness, and feeding over the next 24–48 hours, and call the paediatrician if you are worried.

Keep the vaccine record card in a safe, known place. You will need it for daycare, nursery, school, and travel. If you lose it, your paediatrician’s office can usually provide a replacement from their records.

Red Flags After Vaccination: When to Call the Doctor

Most babies are fine after vaccines. A sore leg and a mild fever are normal. A few signs are not normal, and you should act on them promptly.

Call your paediatrician the same day if your baby:

• Has a fever over 38.5°C (101.3°F) that does not come down, or a fever that lasts more than two days.
• Has swelling, redness, or pain at the injection site that gets worse after two days, rather than better.
• Is unusually sleepy, hard to wake, or limp.
• Cries inconsolably for more than three hours.
• Refuses feeds, or has far fewer wet nappies than usual.
• Vomits repeatedly, or has watery diarrhoea that does not settle.
• Develops a rash that spreads quickly, or a rash with swelling of the face or lips.
• Has a seizure, a stiff body, or jerking movements. This is rare, and it needs urgent care.

Call for emergency help immediately if your baby:

• Has trouble breathing, wheezing, or a blue tinge to the lips.
• Has swelling of the face, tongue, or throat.
• Goes limp, pale, or unresponsive.
• Has a seizure that lasts more than a few minutes.

Serious allergic reactions to vaccines are very rare. The CDC and AAP both stress that the risk of the disease itself is far greater and far more common than a serious reaction to a vaccine. That does not mean you should ignore a worrying symptom. It means you should call early, describe what you see, and let the paediatrician decide. You will never be told off for calling about your baby.

If your baby develops a fever, check whether it is a vaccine fever or a separate illness. A baby ear infection or a cold can start on the same day as a vaccine visit by coincidence. A high fever, ear tugging, or a baby who is clearly in pain deserves a call, whatever the cause. The same applies to a rash: a vaccine rash is usually mild and fades, while a spreading rash with fever needs a same-day check.

Keep a simple note after each visit: the date, the vaccines, the highest temperature, how much your baby fed, and how many wet nappies there were. That note is useful if you need to call, and it helps you see the pattern over the year.

Frequently Asked Questions

1. How many vaccines does a baby get in the first year?

Your baby receives about 10 different vaccines in the first year, given in several doses across the birth, 2, 4, 6, and 12-month visits. The exact number of injections varies by brand and by whether combination vaccines are used. Your paediatrician’s office can give you a count for your baby’s specific plan.

2. What vaccines does a 2-month-old baby get?

At 2 months, your baby usually receives the first doses of DTaP, Hib, polio (IPV), pneumococcal (PCV), and rotavirus vaccines. The second hepatitis B dose is also given at 1–2 months. Rotavirus is given by mouth; the others are injections in the thigh.

3. What vaccines does a 4-month-old baby get?

At 4 months, your baby receives the second doses of DTaP, Hib, polio, pneumococcal, and rotavirus vaccines. This is the same set as at 2 months, and it builds on the protection started at the first round.

4. What vaccines does a 6-month-old baby get?

At 6 months, your baby receives third doses of DTaP and pneumococcal vaccines, a third polio dose, a third hepatitis B dose if due, and a third Hib or rotavirus dose depending on the brand. Your baby can also receive the first flu vaccine from 6 months.

5. What vaccines does a 12-month-old baby get?

At 12 months, your baby usually receives the first MMR dose, the first chickenpox (varicella) dose, the first hepatitis A dose, and booster doses of Hib and pneumococcal vaccines. The hepatitis A first dose can also be given at a later visit within the 12–23 month window.

6. Does my baby need a hepatitis B vaccine at birth?

In the United States, yes. The first hepatitis B dose is routinely given within 24 hours of birth. It protects against a liver infection that can become lifelong if caught in infancy. In the UK, the birth dose is given only to babies born to mothers with hepatitis B, as part of a separate schedule.

7. How many shots will my baby get at one visit?

At the 2, 4, and 6-month visits, your baby will usually receive three or four injections plus the oral rotavirus drops. At 12 months, the number is similar. Combination vaccines can reduce the number of injections. The nurse will tell you how many to expect before starting.

8. Is it safe for my baby to get several vaccines at once?

Yes. The vaccines given together in the first year have been tested together and are licensed for same-visit use. The AAP states that multiple shots in one visit do not overwhelm a baby’s immune system. Splitting them into separate visits leaves your baby unprotected for longer.

9. What is the rotavirus vaccine, and is it a shot?

Rotavirus vaccine is given by mouth as drops, not as an injection. It protects against severe diarrhoea and vomiting. The first dose must be given before 15 weeks of age, and the last dose before 8 months, so this series cannot be delayed for long.

10. When can my baby get the flu vaccine?

From 6 months of age, every year. In the first flu season, your baby needs two doses at least four weeks apart. After that, one dose each flu season is enough. Ask your paediatrician about the best timing in autumn, before flu season peaks.

11. What if my baby misses a vaccine?

You do not need to start over. Call your paediatrician, who will book a catch-up visit and use the CDC catch-up schedule to space the missing doses correctly. The doses already given still count. Book the catch-up as soon as you can, especially before daycare starts.

12. Can my baby be vaccinated if they have a cold?

Often, yes. A mild illness such as a runny nose, low fever, mild earache, or diarrhoea does not usually mean vaccines must be postponed. A moderate or severe illness, or a high fever, may mean waiting until your baby recovers. Call the clinic on the morning of the visit if you are unsure.

13. What side effects are normal after baby vaccines?

Soreness, redness, or swelling at the injection site, a mild fever, extra sleep, less appetite, and fussiness for a day or two are all normal. A mild rash or fever 7–12 days after the 12-month MMR or chickenpox vaccine is also a known, mild response. Most side effects settle within two to three days.

14. How can I comfort my baby after shots?

Hold your baby close, offer a feed or a dummy, and use a cool, damp cloth on the sore spot. Dress your baby in loose clothing and plan a quiet afternoon. Do not give pain medicine before the visit unless your paediatrician advises it. If your baby develops a fever or clear discomfort, follow the dose guidance for your baby’s weight and age.

15. Do vaccines cause autism?

No. The AAP states this directly: vaccines do not cause autism. Researchers around the world have studied this claim for more than 25 years and have reached the same conclusion. The timing overlaps because vaccines and early signs of autism both appear in the second year, but one does not cause the other.

16. Does my baby need the MMR vaccine if measles is rare?

Yes. Measles is rare because vaccination has worked, and it returns quickly when vaccination rates fall. The United States saw more measles cases in 2025 than in over 30 years, mostly in unvaccinated people. The first MMR dose at 12–15 months is the protection that keeps that trend from reaching your baby.

17. What is the difference between the CDC schedule and the NHS schedule?

The CDC schedule, used in the United States, gives vaccines at birth and at 2, 4, 6, and 12 months, with separate injections for most vaccines. The NHS schedule, used in the UK, starts at 8 weeks and uses a combined 6-in-1 vaccine at 8, 12, and 16 weeks, plus MenB and rotavirus. The diseases protected against are largely the same. Follow the schedule for the country where your baby lives.

18. Should my baby get the COVID-19 vaccine?

That depends on your baby’s age, health, and the current guidance at the time of the visit. Recommendations for COVID-19 vaccination in young children have changed more than any other vaccine, and the CDC and AAP have not always used the same wording. Ask your paediatrician for the current recommendation for your baby.

19. Can premature babies follow the same vaccine schedule?

Usually, yes. Premature babies generally follow the same schedule based on their actual age, not their corrected age. Your paediatrician will confirm this for your baby, especially if your baby spent time in neonatal care or has ongoing health needs.

20. Where do I keep my baby’s vaccination record?

Keep the vaccine record card in a safe, known place, and photograph it after every visit as a backup. You will need it for daycare, nursery, school, and travel. If you lose the card, your paediatrician’s office can usually provide a replacement from their records.

21. Do I need to do anything special about sleep or sun after vaccines?

No special routine is needed. Keep your baby’s usual safe sleep for newborns routine — on their back, in their own sleep space — and keep them comfortable. If you take your baby outside, follow the usual baby sunscreen guide for babies for sun protection, and avoid putting sunscreen or creams on the sore injection site itself.

Conclusion: A Year of Protection, One Visit at a Time

The baby vaccination schedule in the first year can look long on paper. In real life, it is five main visits — birth, 2, 4, 6, and 12 months — each lasting a few minutes of injections and a lifetime of protection.

You do not need to memorise every dose number. You need to know the rhythm: a birth dose of hepatitis B, three rounds of DTaP, Hib, polio, pneumococcal, and rotavirus in the first six months, a first flu vaccine from 6 months, and a one-year round of MMR, chickenpox, hepatitis A, and boosters. You need to know that a missed dose is not a failure, that mild side effects are normal, and that your paediatrician is the person to call when you are unsure.

Book the next visit before you leave the clinic. Photograph the record card. Keep the afternoon after each visit calm. And give yourself credit: showing up, asking questions, and following through is the hardest part of the schedule — and you are already doing it.

If your baby seems unwell after a visit, or if you notice anything that worries you — a fever that will not settle, a rash that spreads, or a baby who will not feed — call your paediatrician. That call is never a bother. It is part of the care.

For the days between visits, keep learning about the small things that add up to a healthy first year: recognising newborn jaundice signs and causes, knowing what helps with baby constipation signs and remedies, and keeping the newborn doctor visits checklist close at hand. Your baby’s first year passes quickly. The protection from these vaccines lasts far longer.

Sources

• CDC, Child and Adolescent Immunization Schedule by Age, addendum updated July 2, 2025: https://www.cdc.gov/vaccines/hcp/imz-schedules/child-adolescent-age.html
• American Academy of Pediatrics, HealthyChildren.org, All About the AAP Recommended Immunization Schedule: https://www.healthychildren.org/English/safety-prevention/immunizations/Pages/Recommended-Immunization-Schedules.aspx
• NHS, NHS vaccinations and when to have them: https://www.nhs.uk/vaccinations/nhs-vaccinations-and-when-to-have-them/

This article is for general information only and is not a substitute for medical advice from your baby’s paediatrician or GP. Vaccine recommendations can change, and your baby’s health history may affect timing. Confirm the schedule with your own clinician.