Category: Immunization Schedules

Is It Too Late to Get a Flu Shot?

Have you gotten your kids their flu vaccine yet?

Have you gotten yours?

While I made sure to get my flu shot well before the start of flu season, it is not too late to get vaccinated and protected.
While I made sure to get my flu shot well before the start of flu season, it is not too late to get vaccinated and protected.

Believe it or not, it’s not too late.

Is It Too Late to Get a Flu Shot?

Why would anyone think it could be too late?

“Balancing considerations regarding the unpredictability of timing of onset of the influenza season and concerns that vaccine-induced immunity might wane over the course of a season, it is recommended that vaccination should be offered by the end of October.”

CDC on Timing of Vaccination

Lots of folks focus on the “end of October” as being the best time to get a flu vaccine.

It’s Not Too Late to Get a Flu Vaccine

While it is a good idea to get vaccinated and protected well before flu season starts, this is one of those better late than never kind of things.

Have you gotten a flu vaccine yet?

“CDC recommends that people get a flu vaccine by the end of October. Getting vaccinated later, however, can still be beneficial. As long as flu viruses are circulating, it is not too late to get vaccinated, even in January or later. While seasonal flu outbreaks can happen as early as October, most of the time flu activity peaks between December and February, although activity can last as late as May.”

CDC on Misconceptions about Seasonal Flu and Flu Vaccines

Then it’s not too late.

Get vaccinated and protected for the rest of the flu season.

But don’t wait much longer or you will risk getting the flu before your flu vaccine has a chance to start working.

Get your flu vaccine now.

More on Late Flu Vaccines

At What Age Should Kids Get a Meningococcal Vaccine?

Knowing when to give or get a vaccine doesn’t usually cause any confusion.

You simply have to check the immunization schedule.

Take the meningococcal vaccines, for example. Most parents and pediatricians understand that kids get them before entering middle school and again before going off to college. And some high risk kids should get them even earlier, as infants.

Simple, right?

At What Age Should Kids Get a Meningococcal Vaccine?

Actually, there are some things that make it a little more complicated than it should be…

Why?

  • some overnight and summer camps are actually starting to require a dose of meningococcal vaccine for younger kids, even though this is not a formal recommendation of the CDC or AAP
  • some parents might request a dose of meningococcal vaccine for younger kids going to overnight and summer camps, even though this is not a formal recommendation of the CDC or AAP
  • some folks are misunderstanding recommendations that campers be up-to-date on all immunizations as a recommendation that they get an early meningococcal vaccine
  • getting an early dose, before age 10 years won’t count as the middle school dose, and will need to be repeated
  • some states have very strict laws on timing, like that kids have to get their meningococcal vaccine before starting 6th grade, but only after they turn 11 years old, which creates a problem for those kids who start 6th grade before they are 11 years old
  • many folks don’t understand the recommendations for the MenB vaccines

What’s the answer?

It is not to skip or delay your child’s meningococcal vaccine, of course.

Older teens and young adults are at much higher risk of meningococcal disease than younger school age children.
Older teens and young adults are at much higher risk of meningococcal disease than younger school age children.

Instead, states should likely institute their meningococcal vaccine laws to require a dose before entering 7th grade, that way, most will have plenty of time to get it while they are in 6th grade. Or at least keep to the standard minimum age of 10 years for a dose to count towards middle school requirements.

What about a meningococcal vaccine for campers?

“In New York State, PHL Article 21, Title 6, Section 2167 also requires the notification of campers and parents about recommendations for and the availability of meningococcal vaccine for all campers attending overnight camps for a period of 7 or more consecutive nights. Meningococcal ACWY (MenACWY) vaccine is recommended at age 11 or 12 years, with a booster dose at age 16 years. Please note that the NYSDOH does not recommend that campers receive either dose of MenACWY vaccine before the recommended ages. Students who are vaccinated before the recommended ages may need to have the doses repeated in order to attend school.”

Recommended Immunizations for Campers

Unless they are in a high risk group, folks should likely stick to the standard ages of the immunization schedule to get their kids vaccinated.

And keep in mind that if your child does get an early dose, it won’t count as part of the routine series and will have to be repeated.

“Doses of quadrivalent meningococcal vaccine (either MPSV4 or MenACWY) given before 10 years of age should not be counted as part of the routine 2-dose series. If a child received a dose of either MPSV4 or MenACWY before age 10 years, they should receive a dose of MenACWY at 11 or 12 years and a booster dose at age 16 years.”

Ask the Experts Meningococcal ACWY

Talk to your pediatrician about an early dose if the extra coverage is important to you though. It will protect your child, but isn’t a general recommendation because younger kids have a lower risk for disease and vaccinating everyone likely wouldn’t impact disease rates that much.

Another situation in which getting an extra dose may be required is if you are traveling to a high risk part of the world. In this case, the extra dose is essential, even if it has to be repeated later.

More on Ages to Give Meningococcal Vaccines

How Does a Mother’s Flu Shot Protect a Newborn Baby?

We know that pregnant women are supposed to get a flu vaccine.

Although recommendations on exactly when to get it have changed over the years, it has been a universal recommendation since at least the 1994-95 flu season.

But why?

How Does a Mother’s Flu Shot Protect a Newborn Baby?

One obvious way that a flu shot provides protection during pregnancy is that it reduces your risk of getting the flu while you are pregnant.

A flu shot during your pregnancy protects both you and your baby.
A flu shot during your pregnancy protects both you and your baby.

That’s good, as having the flu while you are pregnant can lead to preterm labor, a premature birth, birth defects, or a miscarriage. And of course, the flu can be life-threatening for pregnant women.

Getting a flu shot while you are pregnant can also help to make sure that you don’t get the flu after your baby is born, which not only keeps you healthy, but decreases the chance that your baby will be exposed to the flu. After all, if you get the flu, no matter how much you try to cover your cough and wash your hands, there is a good chance that you will give it to your baby.

And since babies can’t get flu shots of their own until they are at least six months old, a flu shot during pregnancy helps to make sure that your baby gets some of antibodies to protect them from the flu.

“When you get a flu shot, your body makes antibodies that also pass to your fetus. This means your baby has protection against the flu after birth. This is important because infants less than 6 months of age are too young to get the flu shot.”

Frequently Asked Questions for Patients Concerning Influenza (Flu) Vaccination During Pregnancy

Do you have to wait until late in your pregnancy to make sure that the most antibodies get passed to your baby?

While that might seem like a good idea, especially since that’s what we do for the Tdap vaccine and protection against pertussis, there are several reasons that we don’t do that with the flu vaccine, including that:

  1. pregnant mothers need the protection before flu season hits, so waiting would not be safe and could mean that you get sick with the flu before getting your shot
  2. protection from the flu vaccine shouldn’t wane or wear off so quickly that you need to get it later, after all, the earliest that you can get vaccinated is when flu vaccines first become available in August or September and that should provide good protection past the peak of flu season

When you get your flu shot while pregnant is going to have more to do with when you got pregnant in relation to the start of flu season more than anything else.

“The flu shot can be safely given during any trimester. Pregnant women can get the flu shot at any point during the flu season (typically October through May). Pregnant women should get the shot as soon as possible when it becomes available. If you are pregnant, talk with your obstetrician–gynecologist (ob-gyn) or other health care provider about getting the flu shot.”

Frequently Asked Questions for Patients Concerning Influenza (Flu) Vaccination During Pregnancy

Most importantly, remember that flu shots are considered an “essential component of prenatal care.”

While everyone should get a flu vaccine each year, since pregnant women are in a high risk group for flu complications, you should especially make sure that you get vaccinated and protected if you are pregnant. Everyone around you should get vaccinated too!

More on Flu Shot Protection During Pregnancy

How Many Doses of Flu Vaccines Do My Kids Need?

One dose or two?

How many doses of flu vaccine will your kids need this year?
How many doses of flu vaccine will your kids under age 9 years need this year?

That’s right, some kids actually need two doses of the flu vaccine to get the best protection – a priming dose and a booster dose.

How Many Doses of Flu Vaccines Do My Kids Need?

You child might need two doses of flu vaccine, separated by at least 4 weeks, if they are 8 years old or younger and:

  1. this is the first year that they are getting a flu vaccine, or
  2. they have not received two or more total doses of flu vaccine before

That second part is a little confusing.

That’s because the two doses do not have to have been in the same season or even in consecutive seasons. As long as a child has had at least 2 or more doses of flu vaccine in the past, then they only need one dose this year.

And even if they have never had a flu vaccine before, kids who are already 9 years old, only get one dose.

“Evidence from several studies indicates that children aged 6 months through 8 years require 2 doses of influenza vaccine administered a minimum of 4 weeks apart during their first season of vaccination for optimal protection”

Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices—United States, 2018–19 Influenza Season

Why do they get 2 doses?

“The first dose “primes” the immune system; the second dose provides immune protection.”

Study Looks at Flu Vaccine Dosing in Children

Because studies show that getting 2 doses of flu vaccine like this works best!

More on Flu Vaccine Doses for Kids

 

 

Catch-Up Immunization Plans for Adults

It isn’t hard to figure out how to catch-up kids when they fall behind on their vaccines.

After all, the CDC publishes catch-up immunizations schedules for both younger kids and teens.

Catch-Up Immunization Plans for Adults

What happens when an unvaccinated adult needs to get caught up?

Adults need vaccines too, especially if they have never been vaccinated before.
Adults need vaccines too, especially if they have never been vaccinated before.

They essentially follow the catch-up immunization plan for teens, with a few exceptions:

  • the polio vaccine isn’t typically given to teens over age 18
  • the HPV vaccines aren’t typically given to young adults over age 26, although they are now approved to be given through age 45 years
  • Hib and Prevnar are only typically given to adults with specific conditions that put them at high risk for disease

Are you an adult that needs to get caught up because you have never been vaccinated, your parents skipped or delayed some vaccines, or you lost your immunization records?

Get caught up! It’s likely easier than you think.

More on Catch-Up Immunization Plans for Adults

Is There a Grace Period for Getting Vaccines?

You know about the standard immunization schedule.

Looking at the latest immunization schedule from the CDC and AAP, it should be clear that kids don't get 69 vaccines.
What happens if you get a vaccine a few days too early?

You may even know about the minimum ages or minimum intervals between vaccines, but what happens if your child gets a vaccine just a few days early?

Is There a Grace Period for Getting Vaccines?

Fortunately, in most cases, getting a vaccine just a little early isn’t going to mean that the vaccine dose has to be repeated.

“Doses administered too close together or at too young an age can lead to a suboptimal immune response. However, administering a dose a few days earlier than the minimum interval or age is unlikely to have a substantially negative effect on the immune response to that dose. Known as the “grace period”, vaccine doses administered ≤4 days before the minimum interval or age are considered valid; however, local or state mandates might supersede this 4-day guideline.”

General Best Practice Guidelines for Immunization: Best Practices Guidance of the Advisory Committee on Immunization Practices (ACIP)

That’s because the Advisory Committee on Immunization Practices (ACIP) allows a 4-day grace period for most vaccines. So if your child got their vaccines 3 or 4 days before their 1st birthday, instead of on or after turning 12 months old, they would still count!

It is important to keep in mind that:

  • day 1 is the day before the day that marks the minimum age or minimum interval for a vaccine.
  • the grace period doesn’t apply to the rabies vaccine
  • if a vaccine is given 5 or more days too early, beyond the grace period, then the interval to the next dose starts from the day that invalid dose was given. For example, if the second dose of Hib is given two weeks after the first dose (instead of the minimum 4 weeks), then you don’t repeat this invalid dose in two weeks (four weeks from the first dose), but instead wait an additional four weeks from the invalid second dose
  • you can’t usually add the grace period to an accelerated schedule
  • live vaccines must be given at least 28 days apart if they are not given at the same time and the grace period can not be used to shorten this interval

Most importantly, in place since 2002, the grace period protects kids from having to repeat vaccines because of minor vaccine scheduling errors.

More on the Vaccine Grace Period

What Are the Recommended and Minimum Ages and Intervals Between Doses of Vaccines?

Most parents likely don’t think about the minimum age or minimum intervals between vaccines, as they just get their kids vaccinated according to the routine immunization schedule.

Things don’t always go according to schedule though…

Recommended and Minimum Ages for Vaccines

After their birth dose of the hepatitis B vaccine, your baby’s next vaccines are usually at two months.

Can you get them earlier?

When necessary, many vaccines can be given earlier and faster than the standard schedule.
When necessary, many vaccines can be given earlier and faster than the standard schedule.

Yes. The minimum age for the first dose of rotavirus, DTaP, IPV, Hib, Prevnar, is 6 weeks.

Some other vaccines can be given earlier than their recommended age too, including:

  • the first MMR vaccine, which can be given as early as age 6 months in certain high risk situations, like traveling out of the country or in an outbreak situation, although this dose will have to be repeated once the child is 12 months old
  • the 4th dose of DTaP, which can be given as early as age 12 to 15 months, as long as at least 4 to 6 months have passed since the third dose
  • the 2nd dose of Varivax, which may be given as early as 1 to 3 months after the first dose
  • the Tdap vaccine, which can be given as early as age 7 years, instead of the more typical 11 to 12 years
  • the HPV vaccine, which can be given as early as age 9 years, instead of the more typical 11 to 12 years

Why would you get a vaccine early?

What if you are going to be traveling just before you infant is going to be 2 months old? Or your 9 year old stepped on a rusty nail, and it had been just over 5 years since his last tetanus (DTaP) shot?

Recommended and Minimum Intervals for Vaccines

In addition to earlier ages, you can sometimes get vaccines more quickly, on an accelerated schedule.

For example:

  • the minimum interval between the 1st and 2nd dose of rotavirus, DTaP, IPV, Hib, Prevnar is 4 weeks, instead of the standard 2 months
  • the minimum interval between the 2nd and 3rd dose of rotavirus, DTaP, IPV, Hib, Prevnar is 4 weeks, instead of the standard 2 months
  • the minimum interval between the 1st and 2nd dose of HPV is either 4 weeks (3 dose schedule) or 5 months (2 dose schedule)
  • the minimum interval between the 2nd and 3rd dose of HPV is 12 weeks
  • the minimum interval between the 1st and 3rd dose of HPV is 5 months, instead of the standard 6 months

Why give these vaccines more quickly than usual?

The usual reason is that a child is a little behind and is working to get caught up.

Absolute Minimum Ages for Vaccines

It is important to remember that in some cases, there are some hard and fast rules about minimum ages. That means that if you get these vaccines any earlier, they won’t count and you will likely have to repeat them, including getting :

  • the 3rd dose of hepatitis B before 6 months (24 weeks) or sooner than 8 weeks after 2nd dose and  16 weeks after 1st dose
  • the first dose of MMR, Varivax or hepatitis A before 12 months
  • the 4th dose of Hib before 12 months
  • the 4th dose of Prevnar before 12 months
  • the 4th dose of DTaP before 12 months
  • the 5th dose of DTaP before 4 years
  • the 4th dose of IPV before 4 years

Sticking to the routine schedule helps to avoid vaccine errors, like giving a vaccine too early. In some situations, the 4 day grace period helps if a vaccine is given a little early.

More on Recommended and Minimum Ages and Intervals Between Doses of Vaccines