SARS-CoV-2: seroepidemiological pattern in northeastern Bulgaria

Figures & data

Figure 1. Serological pattern of the tested outpatients.

Table 1. Distribution of SARS-CoV-2 Ab (+) subjects in different age groups.

Age groups (years)	Number of people (%, 95%CI)	IgM (+) alone (n) Proportion (%, 95%CI)	Ig G (+) alone (n) Proportion (%, 95%CI)	IgM/IgG (+) Proportion (%, 95%CI)
21–30 y.	n = 4; 14.3% (0.4–32.7)	n = 1; 16.7% (0.4–64.1) p = 0.681	n = 1; 6.7% (0.2–31.9) p = 0.315	n = 2; 28.6% (3.7–71.0%) p = 0.591
31–40 y.	n = 9; 32.1% (15.9–52.4)	n = 4; 66.7% (22.3–95.7) p = 0.05	n = 2; 13.3% (1.7–41.5) p = 1.0	n = 3; 42.8% (9.0–81.6) p = 0.03
41–50 y.	n = 4; 14.3% (0.4–32.7)	–	n = 2; 13.3% (1.7–41.5) p = 1.0	n = 2; 28.6% (3.7–71.0%) p = 0.591
51–60 y.	n = 8; 28.6% (13.2–48.7)	–	n = 8; 53.4% (26.6–78.7)	–
61–70 y.	n = 3 ; 10.7% (2.3–28.2)	n = 1; 16.7% (0.4–64.1) p = 0.681	n = 2; 13.3% (1.7–41.5) p = 1.0	–
Total (n)	n = 28 (100)	n = 6 (100)	n = 15 (100%)	n = 7 (100%)

Data availability

The author confirms that the data supporting the findings of this study are available within the article and its supplementary materials.