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Apr 21, 2012

Can 25 days of exposure hav accurate hiv test? is there any cases 1st month test negative, subsequent n 3rd month positive?

Response from Ms. Southall

Hi The standard for testing for HIV is to have the initial test at 3 weeks from the day of exposure and then again at 3 months. The reason being is what we call the window period. The testing is picking up your body making antibodies against HIV. Everyone's bodies respond differently in the timing. The important fact is that if indeed you are positive the test can be negative during this window period, at 3 months 97% of the population will develop the antibodies.

To answer your question, yes there are people who test negative prior to the 3 month mark and then test positive at the 3 month mark. So yes it is important to receive the test at the 3 month mark to ensure your status.

Be well and stay safe, Shannon

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