My child had their first dose of influenza vaccine last month and needs their second dose. Do both vaccines have to be the same product?

Question: 

My child had their first dose of influenza vaccine last month and needs their second dose. Do both vaccines have to be the same product?

Answer: 
If a child (aged less than 9 years) requires 2 doses of influenza vaccine in the same influenza season, using the same type of vaccine for both doses is preferable. However, if the type of vaccine used for the first dose is not available, any product may be used for the second dose.
 
Date last reviewed: 
Wednesday, Nov 03, 2021