问：世卫组织于2010年3月调整了政策，现在建议在开始治疗前对所有疑似病例进行疟疾诊断检测。
Q: in March 2010 WHO changed its policy and now recommends diagnostic testing for malaria in all suspected cases before initiating treatment.
CNN -这是个疾病专家都在问的恼人问题：为什么猪流感爆发却只在墨西哥发生死亡病例呢？
It's a confounding question on the lips of disease detectives: Why have the only deaths from the swine flu outbreak happened in Mexico?
CNN -这是个疾病专家都在问的恼人问题：为什么猪流感爆发却只在墨西哥发生死亡病例呢？
It's a confounding question on the lips of disease detectives: Why have the only deaths from the swine flu outbreak happened in Mexico?
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