In testing for HIV infection, an ELIZA test detects

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An ELISA test detects the presence of antibodies to HIV in the blood. HIV antibodies are produced by the immune system in response to the virus. If antibodies are detected, it is an indication that the person has been infected with HIV at some point. However, it is important to note that it can take several weeks to months for the antibodies to develop, so a negative result in the early stages of infection does not necessarily mean the person is not infected.

In Testing for HIV Infection, an ELIZA Test Detects