להבין ולדעת על הקומבו

On June 21, 2010, the U.S. Food and Drug Administration (FDA) released a statement announcing the approval of a new HIV test that may aid in the diagnosis of recent HIV infections. Unfortunately, when this test will be available to the general public isn't clear. According to the FDA press release, it isn't intended to be used for routine screenings but will instead be used in clinical and public health laboratories, as well as in cases where the more widely used tests are impractical or unavailable, such as urgent blood transfusions.
This test, ARCHITECT HIV Ag/Ab Combo Assay, is able to simultaneously test for the HIV antigen (Ag) and HIV antibody (Ab). A brief biology lesson:
Antigens are molecules located on the outside of bacteria and viruses, like HIV, that the immune system recognizes as being "foreign" and need to be attacked.
Antibodies are proteins that the immune system uses to identify and neutralize "foreign" objects, like viruses. When the immune system detects a foreign antigen, it creates an antibody to "match" the antigen. Each antibody binds specifically to an antigen, like a lock with its key. Antibodies float around in the blood or other bodily fluids.
Most HIV tests are HIV antibody tests because antibodies are more abundant, flow in several bodily fluids, and are larger and easier to detect. HIV antigen tests are less common because antigens are harder to find (they're on the tiny viruses) and harder to detect. Testing for HIV antigen has a particular advantage: early detection.
When a person becomes infected with HIV, it usually takes the immune system two to twelve weeks to manufacture the antibody, a.k.a. the three month "window period" for HIV antibody tests. Newly infected people pose a great concern in HIV prevention to others if they remain undetected because of the window period of HIV antibody tests. By detecting the antigen on the virus itself, HIV antigen tests close this gap considerably, though not completely, to about one to two weeks. The ARCHITECT HIV test can simultaneously test for both the HIV antigen and antibody, making it a double threat to detect HIV infection.

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עשיתי בדיקה בבי"ח קפלן {קומבו } אחרי בדיוק 21 יום.
קבלתי תשובה בדף רשום מכון בן ארי בית חולים קפלן
למעלה יש בדיקת אלייזה- שלילי . רשום מתאים למצב הנבדק לפני חודשיים
מתחת לאלייזה יש תשובה לקומבו - שלילי אבל רשום מתאים למצב הנבדק לפני שבועיים
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