HPAI (Highly Pathogenic Avian Influenza)
- Originated from birds and infects domestic fowls.
- Fever, comatose, and sudden death are typical symptoms.
- High fatality rate, and highly contagious.
- Rated as one of the most serious threats as per Office International des Epizooties (OIE)
*”Bird flu” shall herewith refer to HPAI
Links to Human Influenza
- Originally, bird flu and human flu are separate from each other.
- In recent years, high pathogenic influenza have appeared in humans
- Nonetheless, the cases were few. But reported deaths increased from 30% in 1994 to 70% in 2004. The increase indicates a mutation in the toxicity strength.
- There is a fear of a pandemic if the virus would mutate and be transmitted from human to human.
Overview of Bird Flu Outbreaks (1): (Virus strain/ year)
- United States: H5N2 /1983
- Mexico: H5N2 /1993
- Australia: H7N7 /1975, 1976, 1983
H7N3 /1992, 1994, 1997
- Italy: H5N2 /1997, H7N1 /1999
- Netherlands Belgium Germany: H7N7 /2003
- Hong Kong: H5N1 /1997, 2001, 2002, 2003
- South Korea: H5N1 /2003
Overview of Bird Flu Outbreaks (2): Latest Outbreak in 2004
- Cambodia, China, Indonesia, Japan, Malaysia, Thailand, Vietnam, and Laos: H5N1
- Pakistan: H7
- Taiwan: H5N2
- Canada: H7N3
- United States: H5N2
- South Africa: H5N2