# 6581
NIAID, the National Institute of Allergy and Infectious Diseases, has recently released a 3 1/2 minute video that explains, very nicely, the emergence and potential spread of new influenza viruses.
The NIAID Youtube Channel is a terrific resource, with more than 2 dozen informative videos, covering a variety of medical and research topics.
This video is somewhat similar to the NIAID video I highlighted last April (see NIAID Video: Antigenic Drift).
Well worth a look.
