Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Influenza virus identification.
| Virus Name | Geo location | Collection date |
|---|---|---|
| H1N1 (Spanish Flu) | USA, Puerto Rico | 1934 |
| H2N2 (Asian Flu) | Korea | 1986 |
| H3N2 (Hong Kong Flu) | USA, New York | 2004 |
| H5N1 (Avian Flu) | China, Guangdong | 1996 |
| H1N1 (Swine Flu) | USA, California | 2009 |
