Iz Jazas-a? Koliko ja znam oni nisu naucno-istrazivacka institucija... tako da pre ce biti da su oni info samo preneli.
Citiraj:
Antibody tests may give false negative (no antibodies were detected despite HIV being present) results during the window period, an interval of three weeks to six months between the time of HIV infection and the production of measurable antibodies to HIV seroconversion. Most people develop detectable antibodies approximately 30 days after infection, although some seroconvert later. The vast majority of people (99%) have detectable antibodies by three months after HIV infection; a six-month window is extremely rare with modern antibody testing.
http://en.wikipedia.org/wiki/HIV_test#Window_periodCitiraj:
Three instances of delayed HIV seroconversion occurring in health-care workers have been reported;[8] in these instances, the health-care workers[9] tested negative for HIV antibodies greater than 6 months postexposure but were seropositive within 12 months after the exposure.
S obzirom da HIV pripada grupi Lentivirusa koji imaju ruznu osobinu vrlo dugog perioda inkubacije, i vrlo dugog toka bolesti kasnije 6 meseci je nesto sto je 99.95% sigurno, time se rukovode i sluzbe za transfuziju krvi prilikom uzimanja krvi od davalaca, ako je neko imao neki 'incident' koji je bio pre manje od 6 meseci, nece primiti takvu krv jer je moguce da HIV ili HCV budu prisutni ali da organizam nije jos uvek razvaio antitela... pa bi takva krv prosla i zarazila nekog neduznog pacijenta.