1887

Abstract

A tularaemia outbreak was investigated involving 188 suspected cases in the Kocaeli region of Turkey between December 2004 and April 2005. A case–control study comprising 135 laboratory-confirmed cases and 55 controls was undertaken to identify risk factors for the development of the outbreak and to evaluate laboratory diagnostic methods. Tularaemia was confirmed by a microagglutination test (MAT) titre of ≥1 : 160 in 90 of the patients. In MAT-negative sera, 23/44 (52 %) were positive by ELISA with LPS and 1/9 (11 %) by Western blotting with this antigen. A species-specific PCR was positive in 16/25 (64 %) throat swabs and 8/13 (62 %) lymph node aspirates. Multivariate analysis showed that drinking natural spring water was the leading risk factor for the development of tularaemia (=0.0001, odds ratio 0.165, 95 % CI 0.790–0.346). The outbreak ceased after abandonment of the suspected natural water springs.

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2009-01-01
2019-11-12
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