- A study published in the Annals of Emergency Medicine looked at New York City EMS workers
- It found that despite a high incidence of Tuberculosis in New York City, the conversion rate of EMS personnel was low compared to hospital based health care workers
- Data collected from 1993-1996
- A total of 7,290 PPD tests were read
- The average conversion rate over these four years was 0.5%[16]
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