Flu Vaccine Concerns for Preterm Baby: One Dose Enough? - Pediatrics

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Hello, my baby is a 35-week premature infant! He is currently two years and one month old.
He has had severe colds in the past, so this year I took him to get the flu vaccine.
Since receiving the first dose, he has been experiencing cold symptoms and has not fully recovered until today! He has a cough with phlegm, a runny nose, and a poor appetite! He needs to receive the second dose on the 14th, but seeing him like this, I really hesitate to let him go through another round of illness after he has been struggling to recover! Is it possible to only administer one dose? If he needs to get vaccinated again next year, will he need to receive two doses again? A worried mother.

Zhu Zhu, 0~9 year old female. Ask Date: 2006/11/13

Dr. Wang Jiayi reply Pediatrics


Hello, Zhu Zhu: For children, the first flu vaccination consists of two doses, followed by one dose each year thereafter.
Please follow the instructions of your child's pediatrician for vaccination.
If you have any differing opinions, it is best to discuss them with the doctor before making a decision.
Worrying and making decisions on your own may not necessarily benefit your child.
The Pediatrics Department at Hualien Hospital cares about you!

Reply Date: 2006/11/13

More Info


Dear Concerned Mother,
I understand your worries regarding your preterm baby and the flu vaccine. It’s completely normal to feel anxious, especially when your child has been unwell. Let’s address your concerns about the flu vaccine and its administration for your two-year-old who was born at 35 weeks gestation.

Firstly, it’s important to note that the flu vaccine is particularly crucial for children, especially those who were born prematurely. Preterm infants are at a higher risk for complications from influenza due to their underdeveloped immune systems. The Centers for Disease Control and Prevention (CDC) recommends that all children aged six months and older receive the flu vaccine each year.
For children receiving the flu vaccine for the first time, the CDC advises that they should receive two doses, spaced at least four weeks apart. This is to ensure that they develop adequate immunity against the flu virus. Since your child has already received the first dose, it is essential to follow through with the second dose as scheduled, even if they are currently experiencing cold symptoms. The flu vaccine will help protect your child from the flu, which can be more severe in young children, particularly those with a history of respiratory issues.

Regarding your concern about your child’s current health status, it is understandable to hesitate about administering another vaccine while they are unwell. However, mild illnesses, such as a cold, typically do not contraindicate vaccination. It is always best to consult with your pediatrician, who can evaluate your child's overall health and determine if it is appropriate to proceed with the second dose of the flu vaccine. If your child is experiencing significant illness, your pediatrician may recommend postponing the vaccine until they have fully recovered.

As for next year, if your child receives the flu vaccine this year and it is their first time, they will need two doses this year. However, in subsequent years, they will only need one dose annually. This is because the immune system will have built up enough memory from the previous vaccinations to recognize and respond to the flu virus effectively.

In summary, it is crucial for your child to receive the second dose of the flu vaccine to ensure they are adequately protected against influenza. Consult with your pediatrician to assess your child's current health and confirm the best course of action. Your child's health and safety are paramount, and your pediatrician will provide the best guidance tailored to your child's specific situation.

I hope this information alleviates some of your concerns. Remember, you are doing a great job as a parent by seeking the best for your child’s health. Wishing your little one a speedy recovery and good health ahead!
Best regards.

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