Avian Flu ----- reference

References

Agriculture Department---Aniaml Production and Health Division(2007).Retrieved March28,2008

fromhttp://www.fao.org/avianflu/en/index.html

Center for Disease Control and Prevention(2007).Retrieved March 28,2008
fromhttp://www.cdc.gov/flu/avian/gen-info/facts.htm

Cetre for Health Protection(2006).Retrieved March 28,2008
fromhttp://www.chp.gov.hk/content.asp?lang=en&info_id=13&id=24&pid=9

Nature─International weekly journal of science(2008).Retrieved March 28,2008
from http://www.nature.com/nature/focus/avianflu/

The New York times─health guide(2008).Retrieved March28,2008
fromhttp://health.nytimes.com/health/guides/disease/avian-influenza/overview.html