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life_skals life_skals
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6 years ago
HIV-1 and HIV-2 are very similar EXCEPT that
 
  A. HIV-2 progresses far more quickly.
  B. HIV-2 is resident in high percentages in some populations.
  C. HIV-1 is thought to have arisen from FIV, Feline Immunodeficiency Virus.
  D. HIV-2 is more widespread.
  E. All of the above are true, describing multiple differences between the two.
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6 years ago
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