Volume 17, Number 3—March 2011
Research
Tuberculosis Outbreak Investigations in the United States, 2002–2008
Table 4
Factors contributing to 27 CDC–investigated TB outbreaks, United States, 2002–2008*
| Factor | No. outbreaks† |
|---|---|
| Prolonged infectious period | 24 |
| Provider related | |
| Delayed diagnosis | 12 |
| Inappropriate treatment | 2 |
| Patient related | |
| Delayed diagnosis because of late access to care | 6 |
| Nonadherence with treatment | 5 |
| Mistrust or fear of public health system |
6 |
| Incomplete contact investigation | 10 |
| Crowded setting with high-risk population | 7 |
*TB, tuberculosis; CDC, Centers for Disease Control and Prevention.
†Categories not mutually exclusive.


