The early weeks after a possible virus transmission are defined “immunology window” or “serology”. During this period it is impossible to determine or exclude the infection with the systems in service of medicine, but it can make sense to undergo themselves a treatment based on anti-Hiv medication to try to prevent infection. This measure, which is named after Prophylaxis post-exposition (Hiv-Pep o Pep), lasts some weeks and is indicated as in case of sexual exposition at risk as in case of needles wounds in hospitals, but it isn’t effective at 100
The success of the treatment depends from the lapse of time which exists between the exposition to risk and the beginning of the curative therapy. It must be a matter of a short interval: ideally 4 hours, for sure not over 72 hours, otherwise is no more considered effective. So, it’s better to begin in a short time. The Hiv-Pep could present important collateral effects, while it is improbable to produce late consequences. It isn’t a matter, in the end, of a “morning after pill”, but is a therapy recommendable in special or emergency conditions.
The high-risk situations which make opportune the post-exposure prophylaxis are:
Vaginal or anal unprotected sexual intercourses with a person infected by Hiv (even after the condom breaking). Oral sexual intercourses with ejaculation in mouth from the seropositive partner. Use of injection stuff already used by a seropositive person
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