| |
|
Incidence of infection |
| Space of contact (sq. meters) |
No. tested |
Infected (%) |
| |
-24 |
108 |
18(16.7) |
| 25-49 |
81 |
19(23.5) |
| |
50-99 |
151 |
28(18.5) |
| |
100-399 |
191 |
18(9.4) |
| |
400- |
60 |
2(3.3) |
| Total |
|
591 |
85(14.4) |
| P of trend of linear trend of proportion ＜0.01, Unknown space of contact; 22 cases |
|
