1. Wallensten A. Influenza virus in wild birds and mammals other than man. Microb Ecol Health Dis. 2007;/2:/122 39.
2. Mounier-Jack S, Cooker RJ. How prepared is Europe for pandemic influenza? Analysis of national plans. Lancet. 2006;/ 367:/1404 11.
3. World Health Organization. Influenza research at the human and animal interface. Report of a WHO working group. Geneva, Switzerland, 21 22 September 2006. WHO/EPR/ GIP/2006.3. Available online on WHO home site.
4. Christophersen OA, Haug A. More about hypervirulent avian influenza: is the world now better prepared? Microb Ecol Health Dis. 2007;/2:/78 121.