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Antigen P24 2 Weeks After Exposure

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Ask the Experts

would p24 antigen be positive after 10 weeks after exposure considering I took PEP for 28 days?

I took PEP after 100 hours of exposure for 28 days. 6 weeks after my PEP course finished and which was exactly 2 and half months after exposure I had a hiv1 and hiv 2 with the p24 antigen test and they all came negative. How accurate is the p24...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...PEP was prescribed inappropriately. PEP is not warranted (or felt to be effective) if more than 72 hours have lapsed between exposure and the first dose of PEP.2. Had you taken an appropriately prescribed course of PEP, the guidelines for... Read more »

HIV Exposure, Test at 10 weeks and pregnant wife

Hi,I'm a bi-sex male and at the beginning of Sep 07 I had protected sex with a professional sex... Read more »
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The Alphabet Soup of Immune Control: ADCC Antibodies, (Memory) B-Cells, Elite Controllers and Exposed Sero-Negatives -- Will They Amount to Z?

...wake of first (primary response) infection involving a particular antigen, the responding naive (ones which have never been exposed to the antigen) cells proliferate to produce a colony of cells, most of which differentiate into the plasma cells,... Read more »
AIDS InfoNet

Treatment After Exposure to HIV

...information on PrEP. Who Should Use PEP? Workplace Exposure PEP has been standard procedure since 1996 for healthcare workers exposed to HIV. Workers start taking medications within a few hours of exposure. Usually the exposure is from a... Read more »
U.S. Centers for Disease Control and Prevention

Hepatitis B FAQs for Health Professionals

...www.cdc.gov/mmwr/PDF/rr/rr5516.pdf [PDF - 40 pages] ). Can Hepatitis B vaccine be given after exposure to HBV? Yes. After a person has been exposed to HBV, appropriate prophylaxis, given as soon as possible but preferably within 24 hours,... Read more »
AIDS InfoNet

HIV Testing

...produce HIV antibodies. During this "window period" you can test negative for HIV even if you are infected. If you think you were exposed to HIV, you should wait for two months before being tested. You can also test right away and then again... Read more »
Connect With Others

elisa 4-8 weeks, two hemograms but...

Posted by murano, 1 Reply
...0,90), why my last test increased the result? and a last question ( sorry) i have two hemogram, the first at month after exposure, and the second two months after exposure ................. hemogram 1 hemogram 2 Hemoglobin ........... Read more »

4th Generation HIV Test

Posted by Trophy
...advent of new therapies to treat HIV infection and the recommendation to institute therapy immediately (within 2 hours) after exposure,(5) rapid assays may be the most appropriate to test the source patient after exposure (e.g., needlestick... Read more »

3rd Generation?

Posted by Anonymous, 2 Replies
I had taken an Elisa test and happened to ask what version the test was and was told it was a 3rd generation test. Does 3rd generation mean it is not as good as a 4th generation, or are 3rd generation tests ordered for different reasons than 4th... Read more »

Help - P24 Antigen detectability

Posted by Anonymous
...7 weeks post exposure, but with a negative antibody test, wouldnt you expect the P24 Antigen test to be positive, especially if you have been symptomatic? Read more »