Throat Swab PCRs
A U.S.-based occupational case study of 30 people found that a saliva PCR test was able to identify an omicron infection earlier than a nasal antigen test. In that time in between, they say some of the subjects were infectious before testing positive with a nasal antigen.
The preprint put out by researchers in Cape Town, South Africa found that when they used PCR nasal swabs, 100% of delta infections and 86% of omicron infections were identified. When they used PCR oral saliva swabs, 71% of delta infections and 100% of omicron infections were identified.
A U.S.-based occupational case study of 30 people found that a saliva PCR test was able to identify an omicron infection earlier than a nasal antigen test. In that time in between, they say some of the subjects were infectious before testing positive with a nasal antigen.
The preprint put out by researchers in Cape Town, South Africa found that when they used PCR nasal swabs, 100% of delta infections and 86% of omicron infections were identified. When they used PCR oral saliva swabs, 71% of delta infections and 100% of omicron infections were identified.
Should you swab your throat to test for COVID? Experts are split
Early research and some experts say swabbing your throat AND nose could make your COVID-19 test more accurate. Here’s the latest on what we know.
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