This study reviewed the 2009 flu pandemic global outbreak of a new strain of H1N1 influenza virus often referred to as swine flu. The outbreak was first described in April 2009 and appeared to be a new strain of H1N1 which resulted when a previous triple Reassortment of bird, pig and human flu virus further combined with a Eurasian pig flu virus. Information from all over world was obtained using the internet. At least one case of the disease was recorded in the worldwide in 2009, as at 20th May in 36 countries, a total of 80 (0.8%) death cases were recorded globally while in 2009, as at 27th May in 48 countries, a total of 95 (0.7%) death cases were recorded worldwide. Out of 198 countries in the world, from April 2009 to June 2011, a total of 1,643,281 cases of H1N1 were reported with total deaths of 19,660. Africa countries had the lowest death cases of H1N1 of 116 while other countries worldwide had the highest. Among the African countries affected by the H1N1 pandemic disease, Nigeria recorded the highest number of death cases of 15.38% followed by Mauritius 10.39%. Libya and Tanzania recorded the lowest number of death cases of 0.13% in Africa. The recommended antiviral drugs are Zanamivir for children from < 1 year to 6 years and Oseltamivir for children from 7 years to adults.
H1N1, worldwide, swine flu, spanish flu, seasonal flu, neuraminidase, heamagglutinin, polymerase