Human Immunodeficiency Virus Type 2 Antibody Titration (Serum/Plasma)

Why This Test Matters

HIV-2 is a related but distinct virus from HIV-1. While both can cause AIDS, HIV-2 tends to progress more slowly. Detecting antibodies to HIV-2 is important for early diagnosis and managing infection. This test is particularly useful for people who may have been exposed to HIV-2 or have risk factors for infection.

How the Test Works

Your blood sample is tested to detect HIV-2 antibodies using a sensitive immunoassay method. The result is reported as a titer, which indicates the concentration or strength of these antibodies. A higher titer suggests a stronger immune response, which may reflect recent or ongoing infection.

Sample Collection and Preparation

This test requires a blood sample drawn from a vein in your arm. The sample is processed into serum or plasma for testing. The test may be performed on fresh or stored samples, depending on laboratory protocols.

What to Expect Before the Test

No special preparation is needed for this test. You may eat or drink normally before your blood draw. If you are on blood-thinning medications, let your healthcare provider know before the test.