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HomeHealth QueryHIV DUO (HIV P24 ANTIGEN, HIV 1 & 2 ANTIBODY)A negative HIV 4th gen test after 21 days is relia...
  • Female
  • 45 Years
  • 22/09/2023

A negative HIV 4th gen test after 21 days is reliable?

Doctor 1

Answered by 1 Apollo Doctors

Dr. Dr Dhankecha Dineshbhai

Dr Dhankecha Dineshbhai

General Practitioner

  • MBBS
  • 6+ Yrs
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The fourth generation test done with a blood sample from a vein can detect virus from 18 to 45 days from exposure.

Dr. Dhankecha Suggests...

Take a Total Leucocyte Counts And Differential Leucocyte Counts(TLC & DLC) Test or Take a HLA-B Typing Test

Book Total Leucocyte Counts And Differential Leucocyte Counts(TLC & DLC) TestBook HLA-B Typing Test

Answered 24/07/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.