In mid-March 2009, individual and cluster cases of unusual influenza-like-illnes (ILI) were reporter in Mexico and the UnitedStates. Laboratory tests revelaed that the etiology of those infections was a new strain of influenza A (HINI) virus. This novel virus was initially named Swine Flu, then Mexican Flu, novel A (HINI) 2009, and finally was officially termed as Pandemic Influenza Virus A (HI…