Introduction
Avian influenza also is known as bird flu and results from viruses acclimatized to some birds. People may be infected with avian influenza when they get into contact with the infected birds or infected fluids from the birds (Capua and Dennis 10). In this report, the discussion is about the evolution of avian influenza, characteristics of the virus, epidemiology of the virus, as well as the mode of transmission. Moreover, the paper talks about the gene expression of the virus, infection of the human by the virus, evolution of avian influenza's vaccines, and criticisms surrounding evolution of the virus.
Overall features of the avian flu virus
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