What is Swine Influenza?
Swine Influenza (swine flu) is a respiratory disease of pigs caused by
type A influenza virus that regularly causes outbreaks of influenza in
pigs. Swine flu viruses cause high levels of illness and low death
rates in pigs. Swine influenza viruses may circulate among swine
throughout the year, but most outbreaks occur during the late fall and
winter months similar to outbreaks in humans. The classical swine flu
virus (an influenza type A H1N1 virus) was first isolated from a pig
in 1930. Lebih Lanjut di www.indonesiabisasehat.blogspot.com