Table 1 Number of student pairs (N) and student pairs co-infected within 14 days of each other (N_inf) as a function of distance and background. G1: Pairs of students who did not attend the same primary (in 2020) or secondary schools (2021). G2–4: Attended the same primary school in 2020 and (G1) did not attend the same secondary school in 2021; (G2) attended the same secondary school but different program; (G3) attended the same secondary school and the same program. Note that results can only be exported from the secure computer of CBS in groups of at least 10 individuals.
Group | G1 (baseline) | G2 (same background) | G3 (same school) | G4 (same program) | ||||
|---|---|---|---|---|---|---|---|---|
N | N_inf | N | N_inf | N | N_inf | N | N_inf | |
Same house | <10 | <10 | 84 | 28 | 62 | 24 | 107 | 54 |
<0.3 km | 908 | 11 | 18,726 | 141 | 4,886 | 59 | 4,045 | 71 |
0.3–1 km | 6,856 | 40 | 80,741 | 533 | 19,883 | 222 | 16,301 | 257 |
1–3 km | 33,199 | 150 | 78,547 | 501 | 18,708 | 221 | 14,768 | 254 |
3–10 km | 105,180 | 565 | 26,466 | 168 | 5,890 | 44 | 4,011 | 62 |
10–30 km | 49,247 | 259 | 5,947 | 33 | 567 | <10 | 407 | <10 |
>30 km | 38,467 | 214 | 2,720 | 15 | 27 | <10 | 35 | <10 |
Total | \(\approx\)233,857 | \(\approx\)1,239 | 213,231 | 1,419 | 50,023 | 578 | 39,674 | 705 |
