11.8k views
5 votes
Why do vaccine makers have to guess which flu strains will be active months before the flu season begins?

User Jette
by
7.8k points

1 Answer

4 votes
it is so they can make medicine to fight it
User Malmling
by
7.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.