Rapid diagnostic testing for COVID-19 antibodies is more accurate in plasma

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We compared the positive percentage agreement (PPA) and negative percentage agreement of a COVID-19 IgG/IgM test with whole blood and separated plasma from H.E.R.M.E.S against PCR

Increase in Positive Percentage Agreement with PCR

84%

in whole blood

97%

in H.E.R.M.E.S plasma

Additional increased sensitivity in early infections detected by PCR*

*16 samples from patient who first tested positive for COIVD-19 within 14 days of sample collection

69%

in whole blood

94%

in H.E.R.M.E.S plasma

Increased sensitivity can be noted visually

No test line

in whole blood

IgG test line

in H.E.R.M.E.S plasma

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