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26 years
So i do understand from you that my Negative results now could turn positive.And PEP could cause to delay detection with 4th generation (p24) . I am really scared and suffuring because of this mistake
Oct 7, 2014

Dr. Zakia Dimassi Pediatrics
No, antiretroviral therapy (ART), and NOT PEP, administered during the window period can delay the formation of antibodies and extend the window period beyond 12 months. But patients who have undergone PEP must take ELISA tests at various intervals after the usual 28 day course of treatment, sometimes extending beyond the conservative window period of 6 months.
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