Volume 3, Number 3—September 1997
Synopsis
Using a Mathematical Model to Evaluate the Efficacy of TB Control Measures
Table 3
Nosocomial TB outbreaks involving health-care workers under normal working conditions
Pulmonary ventilation p (m3/min) | Room volume V (m3) | No. of susceptible persons So | No. of uninfected persons |
Exposure time t (days) | Infection rate q (qpm) | Disinfection rate C (ACH) | |
---|---|---|---|---|---|---|---|
Initial period | 10-2 | 200a | 25 | 18 | 75 | 0.006 | 6 |
Early follow-up period | 6 x 10-3b | 200a | 17 | 14 | 135 | 0.003 | 6 |
aEstimated value; actual data are not available.
bSurgical masks were adopted.