Table 2. Characteristics of SARS-CoV-2 infections detected in schools, Berlin, Germany, 2–16 November 2020 (n = 10).
| Index participant’s school type | Social stratuma | Ct value | Temperature ≥ 37.5 °C | Reported symptoms on test day | Symptoms before test day | New symptoms after test day | Contact with a confirmed or suspected case in preceding 2 weeks | Positive HM (n/n tested) |
|---|---|---|---|---|---|---|---|---|
| Primary school | High | 14.1 | 37.6 | None (but febrile at examination) | 1 day before test: headache | 1 day after test: loss of smell and taste | Yes, outside school | Yes (1/1) |
| Primary school | Low | 18.9 | 36.1 | None | 6 days before test: elevated temperature, headache, fatigue for 2 days | None | None stated (other positive case in class) | No test result |
| Primary school | Low | 17.0 | 36.1 | Headache, cough | 5 days before test: headache and fever for 2 days | None | None stated (other positive case in class) | No (0/3) |
| Primary school | Low | 19.5 | 36.5 | None | 3 days before test: headache, eye pain | 4 days after test: anosmia | Yes, at school | Yes (1/3) |
| Primary school | Medium | 29.5 | 36.2 | Headache, sore throat | None | None | Yes, outside of school | No (0/1) |
| Primary school | Low | 14.7 | 35.2 | None | None | None | None stated | Yes (3/5)b |
| Secondary school | High | 21.8 | 37.1 | None | None | 7 days after test: sense of taste changed | No data | Not testedc |
| Secondary school | Medium | 27.1 | 37.4 | None | 10 days before test: cold for 7 days | None | Yes, at school and other positive case in class | Not tested |
| Secondary school | Medium | 23.3 | 36.6 | None | 7 days before test: sore throat | None | None stated (other positive case in class) | Not tested |
| Secondary School | Low | 24.4 | 36.1 | None | None | None | None stated | Not tested |
Ct: cycle threshold; HM: household member; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.
a Strata ranking is primarily characterised by indicators of unemployment, state transfer payments and corresponding income, as well as health indicators such as premature and avoidable mortality and tobacco-related serious illnesses [16].
b Family members tested 4 days after student.
c One family member was not tested but had tested positive elsewhere 8 days earlier.