Avian influenza (AI), commonly called bird flu, is a viral infectious disease of birds. Most avian influenza viruses do not infect humans; however, some, such as A (H5NI) and A (H7N9), have caused serious infections in people. Outbreaks of AI in poultry may raise global public health concerns due to their effects on poultry populations, their potential to cause serious disease in people, and their pandemic potential. Reports of highly pathogenic epidemics in poultry, such as A (H5NI), can seriously impact local and global economics and international trade. Currently, the best way to prevent infection with avian influenza A virus is to avoid sources of exposure whenever possible. World Health Organization says that H5NI virus circulation in poultry is vital to reduce the risk of human becoming infected. Research regarding the background and transmission is ongoing. Data related to human infections with seasonal, pandemic and highly pathogenic avian influenza A (H5NI) viruses indicate that the earlier antiviral treatment is initiated the greater the clinical benefit as there is no vaccine at present.

Keywords: Avian Influenza; Pandemic; Poultry.