Hugh Reineck
Thursday, August 18, 2011
Why do you only need one polio vaccination in your lifetime?
Influensa is a RNA virus which mutates alot.. isnt polio also an RNA virus? so why do you only need one vaccination? (9th grade biology)
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment