what is h1n1
H1N1, commonly known as swine flu following a 2009 pandemic, is a contagious disease caused by the influenza virus. The symptoms of the virus present similarly in most cases. The following points explain the H1N1 virus and its effects: 1.
Swine flu, also known as 2009 H1N1 type A influenza, is a human disease. People get the disease from other people, not from pigs. The disease originally was nicknamed swine flu because the virus that causes the d isease originally jumped to humans from the live pigs in which it evolved.