Employees in chicken farms etc. |
Health workers | Total | |
Number of subjects with increased antibody values (more than four-fold) |
15 | 0 | 15 |
Positive only in the first collection | 34 | 4 | 38 |
Positive only in the second collection | 13 | 0 | 13 |
Positive both in the first and second collections | 10 | 1 | 11 |
Total number of positive cases | 72 | 5 | 77 |
Number of subjects in the first collection | 319 | 34 | 353 |
Number of subjects in the second collection | 231 | 33 | 264 |