SWINE FLU; A NEW PANDEMIC AFTER CORONA VIRUS
In the last 20 years, we were face six dangerous threats like: SARS, MERS, Ebola , avian influenza and swine flu ( Raperant & Osterhaus, 2017) . But now a days Corona virus (COVID - 19) became a pandemic . Professor Matthew Bayls told this is not the last pandemic, so we should be alert for next wildlife disease (Jenco, 2020) . BREI F HISTORY H istorical pandemic of swine influenza was 1918 (Spanish flu) where pigs became ill at same time as human s. During 60 years swine flu strain were H1N1 (Sun et al . , 2020) . In 1976 HIN1 virus jumps from pigs to humans. Then after 60 years from 1997 to 2002 new strain with different subtyp es emerged as cause of influenza among pigs . H3N2 strain developed in 1997 - 1998. In 1999 C anada faced strain of H4N6 crossed the species barrier from birds to pigs . T he emergence of H1N1 virus caused pandemic in 2009 where the virus contains three types of strains ( Mackenzie , 2009) . This H1N1v virus is known as HINIv where the v stan...