TABLE 2.

Seroprevalence of Anti–SARS-CoV-2 Immunoglobulins at Recruitment and at Delivery

	First ANC Clinic (n = 395)		Delivery (n = 236)
	Positive		Positive
	n	% (95 CI)	N	% (95 CI)
Total Ig	28	7.1 (4.8–10.1)	20	8.5 (5.3–12.8)
By isotype
IgM	13	3.2 (1.9–5.6)	7	2.9 (1.5–6.1)
IgM + IgG	13	3.2 (1.9–5.6)	12	5.1 (2.9–8.8)
IgG	2	0.5 (0.1–2)	1	0.4 (0.05–3)

ANC, antenatal care; 95 CI, 95% confidence interval; study period, November 2019 to June 2021.