A member asked:

To your knowledge has a combo 4 gen hiv test ever miss an infection if tested after the window period for the test? i find all kinds of articles of delayed antibody but the combo always detected it are there any that was missed?

Q: to your knowledge has a combo 4 gen hiv test ever miss an infection if tested after the window period for the test? i find all kinds of articles of delayed antibody but the combo always detected it are there any that was missed?

: To my knowledge, this has never happened beyond 45 days after exposure. The most likely potential exception is when anti-HIV drugs are taken to prevent infection (post exposure prophylaxis). If PEP doesn't work, the window period is delayed until 6 weeks after completing treatment.

A doctor has provided 1 answer

Dr. Hunter Handsfield answered

Specializes in Infectious Disease

To my knowledge, this has never happened beyond 45 days after exposure. The most likely potential exception is when anti-HIV drugs are taken to prevent infection (post exposure prophylaxis). If PEP doesn't work, the window period is delayed until 6 weeks after completing treatment.

Dr Kuitems agreed

Answered 7/5/2022

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A member asked:

To your knowledge has a combo 4 gen hiv test ever miss an infection if tested after the window period for the test? i find all kinds of articles of delayed antibody but the combo always detected it are there any that was missed?

A doctor has provided 1 answer

Dr. Hunter Handsfield answered

Dr Kuitems agreed

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