HomeAnswersHIV/AIDS specialisthiv testingIs CMIA Abbott fourth generation test reliable at 13 weeks?

Will CMIA Abbott fourth generation test at 13 weeks give accurate results?

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Published At May 19, 2017
Reviewed AtJuly 25, 2023

Patient's Query

Hi doctor,

Is a CMIA (Chemiluminescent Microparticle Immuno Assay) Abbott fourth generation negative test 100 % reliable at 13 weeks? Can both p24 and antibody remain undetected by a combo test? Does CMV (Cytomegalovirus) coinfection increase window period?

Hi, Welcome to icliniq.com.

HIV(Human Immunodeficiency Virus) infection has a window period of 1 to 3 months during which the test results can be a false negative. According to WHO(World Health Organization), all results are considered conclusive at 12 weeks after the last exposure. Hence, your test is definitive if done at 13th week. As per the protocol, if infected, either the antigen or antibody would reach detectable levels by 12 weeks. CMV (cytomegalovirus) infection does not alter the window period. Kindly upload the latest report to confirm the same.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Rakesh Kumar Bahunuthula
Dr. Rakesh Kumar Bahunuthula

Dermatology

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