GAINESVILLE, Ga. — According to the Centers of Disease Control and Prevention website, there are two categories of avian influenza. One is called Highly Pathogenic Avian Influenza (HPAI). The CDC says, “highly pathogenic avian influenza viruses cause severe disease and high mortality in infected poultry.”
The organization explained, “HPAI A(H5) or A(H7) virus infections can cause disease that affects multiple internal organs with mortality up to 90 percent to 100 percent in chickens, often within 48 hours. However, ducks can be infected without any signs of illness. HPAI A(H5) and A(H7) virus infections in poultry also can. . .