1. Updating the Accounts: Global Mortality of the 1918-1920 "Spanish" Influenza Pandemic
2. World Organization for Animal Health. Update on avian influenza in animals (Type H5). 2007. Available at: http://www.oie.int/downld/AVIAN%20INFLUENZA/A_AI-Asia.htm. Accessed 14 March 2007.
3. World Health Organization (WHO). Cumulative number of confirmed human cases of avian influenza A/ (H5N1) reported to WHO. Available at: http://www.who.int/csr/disease/avian_influenza/country/en/. Accessed 18 October 2007.
4. World Health Organization (WHO). Update: WHO-confirmed human cases of avian influenza A(H5N1) infection, 25 November 2003-24 November 2006. Available at: http://www.who.int/wer/2007/wer8206.pdf. Accessed 14 March 2007.
5. Three Indonesian Clusters of H5N1 Virus Infection in 2005