What is Influenza A(H1N1)

Influenza A(H1N1) is a swine respiratory system disease caused by type-A Influenza A(H1N1) virus, which may trigger the influenza breakout among pigs. Usually, the humankind is seldom infected by the Influenza A(H1N1) virus. The human-infected Influenza A(H1N1) cases have been founded in such regions as America in recent years. Most of the patients are those who have had the direct contact with infected pigs.

 

 

[source:ebeijing.gov.cn]