According to the World Health Organization circular, US and Mexico has the human to infect A/H1N1 the Type A H1N1 flu epidemic situation. Since March 18, 2009, the Mexican flu type case has assumed the trend of escalation. Up to April 24, Mexico has 3 epidemic situations successively, altogether reported that the case 882 examples, die 62 examples, the case fatality rate 7%, majority of cases for ..