TABLE 3.

Positive detection rate of different SARS‐CoV‐2 virus antibodies at different time periods after disease onset among 506 COVID‐19 patients at the Third People's Hospital of Shenzhen, China

Days after onset	n	IgA+	IgG+	IgM+	RNA+	IgG+IgM+	IgA+IgG+	RNA+ or IgG+IgM+	RNA+ or IgA+IgG+
1–7	148	67	60	22	96	20	49	104	123
		45.27%	40.54%	14.86%	64.86%	13.51%	33.11%	70.27%	83.11%
8–14	150	114	117	64	81	64	103	116	139
		76.00%	78.00%	42.67%	54.00%	42.67%	68.67%	77.33%	92.67%
15–21	105	100	102	79	48	78	99	92	102
		95.24%	97.14%	75.24%	45.71%	74.29%	94.29%	87.62%	97.14%
22–28	99	94	98	77	26	77	93	85	96
		94.95%	98.99%	77.78%	26.26%	77.78%	93.94%	85.86%	96.97%

Abbreviations: +, positive results; IgM+IgG+, co‐seroconversion of IgM and IgG; IgA+IgG+, co‐seroconversion of IgA and IgG.