References
- http://www.cdc.gov/flu/avian/gen-info/flu-viruses.htm
- http://www.cdc.gov/flu/avian/gen-info/transmission.htm
- http://www.cdc.gov/flu/avian/gen-info/avian-influenza.htm
- http://www.cdc.gov/flu/avian/gen-info/avian-flu-humans.htm
- http://w3.whosea.org/en/Section10/Section1027.htm
- http://www.cdc.gov/flu/avian/gen-info/pandemics.htm
- http://www.oie.int/downld/AVIAN%20INFLUENZA/A_AI-Asia.htm
- http://www.who.int/csr/disease/avian_influenza/country/cases_table_2006_02_20/en/index.html
- http://content.nejm.org/cgi/content/full/353/25/2667