From: Tuberculosis infectious pool and associated factors in East Gojjam Zone, Northwest Ethiopia
Category of TB cases | Number of PTB cases per year: Number (%) | TB management time in days | Infectious period in days | Total annual infectious person-days |
---|---|---|---|---|
New registered PTB cases (n = 327) | ||||
 Smear-positive | 125 (38.2) | 82 | 117 | 14,625 |
 Smear-negative | 202 (61.8) |  |  |  |
 Smear-negative culture positive | 115 (57.0) | 113 | 113 | 12,995 |
Retreatment registered cases (n = 21) | ||||
 Default | 7 (33.3) | 197 | 253 | 1771 |
 Failure | 8 (38.1) | 278 | 334 | 2672 |
 Relapse | 6 (28.6) | 142 | 198 | 1188 |
Not registered cases | ||||
 Undiagnosed cases | 123 (51.0) | 365 | 365 | 44,895 |
 The total annual infectious pool |  |  | 78,031 |