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Suburban Transmission of Q Fever in French Guiana: Evidence of a Wild Reservoir

Suburban Transmission of Q Fever in French Guiana: Evidence of a Wild Reservoir The annual incidence of Q fever in French Guiana was found to have increased in 1996 and was 37/100,000 population over the last 4 years. Subsequent investigations in Cayenne and its suburbs indicated that a wild reservoir of the bacteria was responsible for the epidemiologic pattern. A case‐control study showed that residence near a forest and occupations and activities that result in exposure to aerosols of dusts from the soil are risk factors for Q fever. By means of time‐series analysis, a strong positive correlation between rainfall and the incidence of Q fever with a time lag of 1–3 months was found. The spatial distribution of the cases showed that transmission occurs widely throughout greater Cayenne, which is incompatible with a pinpoint source of contamination. Transmission from livestock and dissemination of the bacteria by the wind appeared to be unlikely, which strengthens the hypothesis that a wild reservoir is responsible for transmission. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Infectious Diseases Oxford University Press

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References (27)

Publisher
Oxford University Press
Copyright
© Published by Oxford University Press.
Subject
Articles
ISSN
0022-1899
eISSN
1537-6613
DOI
10.1086/322034
pmid
11443552
Publisher site
See Article on Publisher Site

Abstract

The annual incidence of Q fever in French Guiana was found to have increased in 1996 and was 37/100,000 population over the last 4 years. Subsequent investigations in Cayenne and its suburbs indicated that a wild reservoir of the bacteria was responsible for the epidemiologic pattern. A case‐control study showed that residence near a forest and occupations and activities that result in exposure to aerosols of dusts from the soil are risk factors for Q fever. By means of time‐series analysis, a strong positive correlation between rainfall and the incidence of Q fever with a time lag of 1–3 months was found. The spatial distribution of the cases showed that transmission occurs widely throughout greater Cayenne, which is incompatible with a pinpoint source of contamination. Transmission from livestock and dissemination of the bacteria by the wind appeared to be unlikely, which strengthens the hypothesis that a wild reservoir is responsible for transmission.

Journal

Journal of Infectious DiseasesOxford University Press

Published: Aug 1, 2001

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