Bird Flu
Bird Flu What is Bird Flu? It’s a disease, which is known formally as Avian influenza and refers to " influenza caused by viruses adapted to birds . There are three types of influenza viruses ( A , B , and C ). Avian influenza usually refers to the influenza A virus. Though influenza A is adapted to birds, it can also stably adapt and sustain person-to person transmission. Avian influenza strains are divided into two types based on their pathogenicity : high pathogenicity (HP) or low pathogenicity (LP). The type with the greatest risk is highly pathogenic avian influenza (HPAI). The most well-known HPAI strain, H5N1 , appeared in China in 1996, and also has low pathogenic strains found in North America. Companion birds in captivity and Pigeons are not known to contract or spread the virus. How does Bird Flu spread to humans? People catch bird flu b...