Question
How to check the batch number of pediatric vaccines?
Answer
The batch number of vaccines is typically marked according to the production date. For example, the batch number “200910A3103/20080719-4” is a batch number for a vaccine. You can ask the staff who administered the vaccine to your child for assistance, as they should be able to help if the production unit is the same. Generally, the validity period of hepatitis B vaccine is 2 years. If you want more detailed information, you can contact the drug administration authority for inquiries.