When is HIV-2 testing indicated?

Updated: Jul 01, 2019
  • Author: Nicholas John Bennett, MBBCh, PhD, MA(Cantab), FAAP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Testing for HIV-2 should be ensured for patients from an HIV-2 endemic area or those who have indeterminate results on HIV-1 Western blot testing. Not all HIV tests include detection of HIV-2 or Group O. In New York City, 62 cases of HIV-2 were detected over an 8-year period, of which 40 were initially misdiagnosed as HIV-1. [95]


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