![]() The second generation of EIA tests was developed, which could detect approximately 4 to 6 weeks after IgG antibody infection for both HIV-1.2 types. Thus, the first generation of EIA (Enzyme Immune Assay) was first developed, which only 8 to 10 weeks after infection could detect IgG class 1 antibody against HIV, although there were many false positives and negatives in the results of this test. The first and most common way to diagnose an infection was to detect antibodies that developed over time. This time varies depending on the nature of the tests. The time interval between the entry of HIV into the body and the positiveness of a laboratory test is called the window period. ![]() In this section, we take a brief look at some of the common tests used to diagnose HIV. However, despite the negative nature of the test, it is possible to transmit the virus. The time it takes for a virus to enter a person's body until a bloody test can be detected is called the latent period or window period.īecause the disease is usually diagnosed by detecting antibodies against the virus, the results of an HIV test can be negative during this period. The HIV virus first targets and multiplies monocytes / macrophages, then multiplies in CD4 + lymphocytes.Īn HIV-infected person may appear healthy and may have no symptoms or infection for a long time.įor this reason, it can be said that the only way to diagnose HIV infection is to have a blood test. The pathogenesis of the virus progresses in three main stages:Īcquired Immune Deficiency Syndrome (HIV) or Acquired Immune Deficiency Syndrome (HIV) ![]() Types of diagnostic tests for HIV infectionĪcquired Immune Deficiency Virus (HIV) belongs to the lentis family of viruses and there are two types of viruses called type I and type II.
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