• 急救心肺复苏课程报名
    急救心肺复苏课程报名
  • 在线教育
    在线教育
  • AED托管服务
    AED托管服务
  • 企业医务室及健康小屋托管服务
    企业医务室及健康小屋托管服务
  • 职业健康讲座
    职业健康讲座

Scientists identified a type of chimpanzee in Central Africa as the source of HIV infection in humans. They believe that the chimpanzee version of the immunodeficiency virus (called simian immunodeficiency virus, or SIV) most likely was transmitted to humans and mutated into HIV when humans hunted these chimpanzees for meat and came into contact with their infected blood. Studies show that HIV may have jumped from apes to humans as far back as the late 1800s. Over decades, the virus slowly spread across Africa and later into other parts of the world. We know that the virus has existed in the United States since at least the mid to late 1970s. 

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