Table 1.

COVID-19 PCR and antibody test results

	April 19, 2020	July 2, 2020	July 3, 2020	July 9, 2020	July 13, 2020	July 16, 2020	July 23, 2020	July 30, 2020
SARS-CoV-2 RNA by RT-PCR	Positive	Negative	Negative	Negative	Negative	Negative	Negative
CoV-2, total index (reference range <1.0 S/C^a)		19.3				22.7	31.4	26.3
CoV-2, total Ab (IgG and/or IgM)		Reactive				Reactive	Reactive	Reactive
SARS-CoV IgG Ab		Reactive		Nonreactive	Nonreactive	Nonreactive	Nonreactive	Nonreactive
SARS-CoV IgG index (<1.0 S/C^a)		1.09		0.35	0.31	0.36	0.42	0.31

Ab, antibodies; COVID-19, coronavirus disease 2019; PCR, polymerase chain reaction; RT-PCR, reverse-transcriptase polymerase chain reaction; SARS-CoV-2; severe acute respiratory syndrome coronavirus 2.

S/C, signal for test sample/signal at cutoff value. VITROS Immunodiagnostic Products Anti-SARS-CoV-2 Total Reagent Pack (Ortho-Clinical Diagnostics, Inc., Rochester, NY).¹