What is best to do in the situation is to have the bystander call 911 while you start CPR. It is best to do it immediately to ensure that the infant is receiving circulation and oxygen.
Answer:
A) The discovery of HIV. 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.
