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Testing for HIV-2

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Patients who have West African connections may require testing for HIV-2.

The majority of ELISA tests use HIV-1 antigen, and the antibody to HIV-2 may not be fully reactive with these. The most recent ELISA tests include combined HIV-1/2 antigens and clinicians should check that the laboratory is using them.

Reference:

  1. Centers for Disease Control and Prevention. Laboratory testing for the diagnosis of HIV infection: updated recommendations. Jun 2014 [internet publication].

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