Posted by: CURIOUS | 2004/10/23


Dear Doc,

I have recently spoken to a virologist at one of the large labs in JHB, and she told me that the window period for the HIV PCR QUALITATIVE test is 12 - 14 days and that of the latest (4th generation) HIV ELISA test is 3 - 4 weeks. Also after this period has elapsed, the results can be taken as conclusive. I have read on numerous websites varying answers to the question of window periods, can you tell me if the periods above and results thereafter are conclusive.

Many thanks.

Not what you were looking for? Try searching again, or ask your own question
Our expert says:
Expert ImageCyberDoc

Curious, I often get questions like yours and I give the exact same answer. A PCR may become positive after 5 days and will be conclusive after 14 days. A 4th generation ELISA test will be conclusive after 4 weeks. Good luck.

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.

Have your say

Thanks for commenting! Your comment will appear on the site shortly.
Thanks for commenting! Your comment will appear on the site shortly.