The Swine Flu Now at Pandemic Alert Phase 5. What Does that Mean
Posted by randomnews.net on 1 May, 2009
No comments yet
This item was filled under [ News ]
Pandemic Alert Phases
In nature, influenza viruses circulate continuously among animals. Even though such viruses might theoretically develop into pandemic viruses, in
Phase 1 no viruses circulating among animals have been reported to cause infections in humans.
In Phase 2 an animal influenza virus circulating among domesticated or wild animals is known to have caused infection in humans, [...]
Loading ...