Table 3. Patients with samples ≥10 days post symptoms, contingency tables (threshold three-antigen Boolean classifier).

	Viral RNA(+)	Viral RNA(–)
Phase 2
S1 or S2 or N ≥ threshold	6	1	7
S1 or S2 or N < threshold	0	3	3
Totals	6	4	10
Phase 3
S1 or S2 or N ≥ threshold	43
S1 or S2 or N < threshold	6
	49