- So. Due to the documented spread of Swine Flu between individuals, the WHO has upgraded the pandemic alert level to 5. What does this mean? http://www.who.int/csr/disease/avian_influenza/phase/en/ 3 comments reddit.com
- WHO raises pandemic alert to phase 4. http://www.who.int/csr/disease/avian_influenza/phase/en/index.html 28 comments worldnews