1) World Health Organization. “Avian Influenza: Frequently Asked Questions”
http://www.who.int/csr/disease/avian_influenza/avian_faqs/en/index.html

2) Pan American Health Organization. “Bird Flu: Communicating the Risk.” Perspectives in Health, Volume 10, No. 2.
      http://www.paho.org/English/DD/PIN/Number22_article1.htm

3) World Health Organization, Epidemic and Pandemic Alert and Response. “Ten things you need to know about the Pandemic Influenza.”
      http://www.who.int/csr/disease/influenza/pandemic10things/en/index.html

4) World Health Organization. “Avian influenza ("bird flu"): and the significance of its transmission to humans.”
http://www.who.int/mediacentre/factsheets/avian_influenza/en/

5) World Health Organization. “WHO checklist for Influenza Pandemic Preparedness Planning.” Department of Communicable Disease Surveillance and Response Unit Global Influenza Programme.
      http://www.who.int/csr/resources/publications/influenza/FluCheck6web.pdf

6) Pan American Health Organization. “Avian vs. Pandemic Flu: Understanding the Threat.”
      http://www.paho.org/English/DD/PIN/pr051220.htm