Why You Need the Flu Shot Every Year

Unfortunately, the influenza virus is a ruthless master of disguise. “Not only does flu change, but it’s a survival strategy for the virus. Its change is how it makes people so sick,” Dr. Karron explained. That’s because the part of the virus that changes is the very part the immune system targets. Meet the influenza […]

Advertisements
Read more at : www.nytimes.com
Thanks! You've already liked this