Threat of New Strains of Swine Flu Virus in Pigs

Influenza virus A is one type of flu virus that causes the seasonal flu in humans. The subtypes of influenza virus that are found in humans are influenza A H1N1 virus and influenza A H3N2 virus. In 2009, an H1N1 virus (swine flu) caused a pandemic. ┬áThe flu virus found in pigs infected humans and […]