Caused by influenza virus strains. Type-h 1 n 1 (A/H1N1) The new nachuea backpack that has never been seen before. Due to the genetic mix between human influenza infection. Pigs and birds.
Caused by a new strain of influenza virus type A, H 1 N 1 (A / H1N1) infections are a new, never seen before. Caused by the mixing of genetic material between the pig and bird flu.
New strains of influenza virus type a เอช1เอ็น1 (A / H1N1) is the new infections that never met before. Due to the mixed genetic material between influenza infections of pigs and birds.