H1N1 (Swine Flu)
H1N1 (Swine Flu) Flu (influenza) viruses are categorized into four categories: influenza A, B, C or D. Influenza A is the most common type and H1N1 flu is a subcategory of influenza A. HIN1 influenza (swine flu) is actually a respiratory disease of pigs caused by type A influenza viruses that infect…