Volume 21, Number 1—January 2015
Dispatch
Hospital-Associated Transmission of Brucella melitensis outside the Laboratory1
Christopher Lowe, Adrienne J. Showler, Suzette Perera, Susan McIntyre, Roohi Qureshi, Samir N. Patel, Vanessa Allen, H. Roslyn Devlin, and Matthew P. Muller
Table
Baseline serologic test results for 32 health care workers exposed to Brucella melitensis, Toronto, Ontario, Canada, 2012
| Risk and test result categories | Test results, no. workers (titer, if applicable*) |
|---|---|
| High-risk, radiology, n = 2 | |
| Negative† | 1 |
| Indeterminate | 0 |
| Positive |
1 (1:160) |
| High-risk, laboratory, n = 10 | |
| Negative | 9 |
| Indeterminate | 1 (1:80) |
| Positive |
0 |
| Low-risk, laboratory, n = 20 | |
| Negative | 18 |
| Indeterminate | 1 (1:80) |
| Positive | 0 |
| Refused testing | 1 |
*Negative, ≤1:20; interdeterminate, 1:40–1:80; positive ≥1:160.
†Lost to follow-up, but serologic results were negative at 6 weeks after exposure.
1Preliminary results from this study were presented at the 2013 Association of Medical Microbiology and Infectious Disease Canada–Canadian Association for Clinical Microbiology and Infectious Diseases Annual Conference, April 3–6, 2013, Quebec City, Quebec, Canada.
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