Bulgarian medics were accused, tried, and convicted of infecting 400+ children a
ID: 53138 • Letter: B
Question
Bulgarian medics were accused, tried, and convicted of infecting 400+ children at a hospital in Libya with HV. The conviction was followed by a death sentence, at which point the international community asked for a scientific analysis. Describe what each of the two hypotheses suggests about the guilt or innocence of the nurses/doctors. C. On the next page is a phylogeny used to assess of there is a plausible zoonotic origin to the HIV virus. That is, did HIV originate in a primate host and then jump to humans? A key is provided to determine what species each virus sample was obtained from. Does it appear that HIV is zoonitoc (jumped form animal to human) in origin? If so, which species did each HIV strain jump from? Do HIV1 and HIV2 appear to share a common origin? why or why not?Explanation / Answer
Scenario one
The cladogram in this scenario shows a narrow cluster of viruses developed after the medics began to work. there observed no considerable evolution in the virus strains. This predicts the recent infection of viruses to the children. This must has happened after children admitted to hospital i.e. after the medics started working. This case shows that the medics are guilty. The infection has been spread due to misuse or reuse of the medical instruments.
Scenario two
This cladogram shows the virus diverging before the medics start working. The children were already having infection before they admitted to hospital. In this case medics are innocent.
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