|ELISA 4th GENERATION and PEP and ODDS
Mar 23, 2013
Dear David, First of all, thank you for your time. I would like to know how good is a non-reactive result after 55 days post-exposure (week 8) or 25 days after finishing PEP? I had an anal insertive intercourse but the condom broke. I have noticed it quickly but the guy found out being HIV+. It was an one time occurrence, I was only the insertive partner and the amount of time was brief. I have taken combivir + kaletra for 28 days and i have started it 40 hours after the incident. I have read here on The Body that this negative result, given by a 4th generation Elisa (the exam which searches for both P24 antigen and HIV antibody) is extremely reliable. Can i rest my mind now??? Is it true that the window period is being revised by the CDC??? I am from Brazil and here the window period is commonly 8 weeks and, in fact, just 22 days for a 4th generation elisa. Can i trust it??? I must say that i am a little paranoic... Thank you very much! G.
| Response from Dr. Wohl
You are correct that this combo test is very reliable and that if you were infected the test would reveal it. You can stop worrying.
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