Table 2.
Serologic results in group 2 patients (PCR positive) according to the time from the onset of symptoms.
| Time from onset of symptoms | Global | ≤ 7 days | 8−14 days | 15−21 days | 22−28 days | > 28 days |
|---|---|---|---|---|---|---|
| No. patients | 90 (100.0 %) |
19 (21.1 %) |
21 (23.3 %) |
15 (16.7 %) |
20 (22.2 %) |
15 (16.7 %) |
| IgG positive | 54 (60.0 %) |
4 (21.1 %) |
7 (33.3 %) |
13 (86.7 %) |
16 (80.0 %) |
14 (93.3 %) |
| IgM positive | 26 (28.9 %) |
4 (21.1 %) |
4 (19.0 %) |
9 (60.0 %) |
6 (30.0 %) |
3 (20.0 %) |
| Positive result | 58 (64.4 %) |
5 (26.3 %) |
9 (42.9 %) |
14 (93.3 %) |
16 (80.0 %) |
14 (93.3 %) |
Statistics: values are expressed as absolute count (percentage). A positive serologic result was defined for samples that resulted positive for either IgM or IgG antibodies.