WHO: Swine flu virus is top strain worldwide

Thursday, November 5, 2009 - 09:56 in Health & Medicine

(AP) -- The World Health Organization's flu chief said the swine flu virus has now become the predominant flu strain worldwide.

Read the whole article on Physorg

More from Physorg

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net