Which test is currently used to detect donors infected with the AIDS virus?

The test used to detect donors infected with the AIDS virus is the anti-HIV 1,2 test. This test specifically looks for antibodies against the Human Immunodeficiency Virus (HIV), which is the virus responsible for Acquired Immunodeficiency Syndrome (AIDS).

By testing for these antibodies, the blood bank can identify individuals who may be infected with HIV before they donate blood, thereby helping to ensure the safety of the blood supply and protect recipients from potential infection. Detecting the presence of anti-HIV 1,2 is a crucial step in the screening process for blood donations, as early identification of HIV allows for better management of the infection and reduces the risk of transmission.

The other tests mentioned do not specifically target HIV. For example, anti-HBc is associated with Hepatitis B virus infection, while HBsAg also pertains to Hepatitis B detection. ALT is a liver enzyme that can indicate liver damage and is not a specific test for HIV. Hence, the anti-HIV 1,2 test is the appropriate choice for screening blood donors for the AIDS virus.