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 young adults crowd.At the same time, the US reported that 7 example diagnosis case and 9 example suspected cases, the case symptom is light, does not have the death.According to the laboratory examination's preliminary result, formerly not examined in the pig or the humanity causes this epidemic situation Type A H1N1 flu A/H1N1 virus.

　　根据世界卫生组织的通告，美国和墨西哥的人类感染A/H1N1型A型H1N1禽流感疫情。3月18日以来，2009年，墨西哥的禽流感类型案件 具有升级的趋势。截至4月24日，墨西哥已先后3疫情，共报告病例882的例子，模具62个例子，病死率为7%，大多数情况下，为年轻的成年人人群。与此 同时，美国的报告说，7例如诊断病例和疑似病例9例如，该案件的症状很轻，没有死亡。根据实验室检查的初步结果，以前没有审查猪或人类造成这一疫情型A型 H1N1禽流感A/H1N1病毒。