HIV I and HIV II Antibodies Test
There are two types of HIV viruses that cause AIDS: HIV type 1 or HIV-1 is common, whereas HIV type 2 or HIV-2 which is confined to West Africa. However, type 2 virus has been detected in persons who have come in contact with the people of that region. The antibodies against these two types of viruses appear after six to twelve weeks of exposure. The tests that are repeatedly reactive by these methods should be confirmed by confirmatory antibody testing.
Why is the test performed?
The HIV-1 and HIV-2 antibody differentiation test is important to confirm and differentiate between third generation screening tests involving HIV-1 and HIV-2 antibodies only and the fourth generation screening tests involving both HIV antigen and antibodies.
Who are suitable for testing?
Individuals with suspected exposure to HIV-1 or HIV-2, children with suspected HIV infection, pregnant women and adults at increased risk are suitable for testing.
How is the sample collected?
A blood sample is collected from a vein in the arm.
How to prepare for the test?
No special preparations are required for this test.