Human prevalence of the spotted fever group (SFG) rickettsiae in endemic zones of Northwestern Colombia

Andrés F. Londoño, Leidy Y. Acevedo-Gutiérrez, Diana Marín, Verónica Contreras, Francisco J. Díaz, Gustavo Valbuena, Marcelo B. Labruna, Marylin Hidalgo, Margarita Arboleda, Salim Mattar, Sergio Solari, Juan D. Rodas

    Research output: Contribution to journalArticlepeer-review

    12 Scopus citations


    In February 2006, an outbreak of human rickettsiosis occurred in the municipality of Necoclí Colombia, with 35% of lethality. This episode was, followed by two more, one in the municipality of Los Cordobas in 2007 with a 54% of lethality and the other one in the municipality of Turbo in 2008 with 27% of lethality. The aim of this study was to perform serological tests in healthy persons to determine the seroprevalence of antibodies against spotted fever group (SFG) rickettsiae and develop a survey to study some infection risk-related factors. A cross-sectional study was performed in 2011 and 2012. A blood sample and survey of associated factors was performed in healthy persons. A prevalence of 32%–41% was found in healthy people. From the multivariate analysis, we found that people living more than 16 years in these sites had a 79% higher risk of being seropositive and a 46% higher risk when they reported having birds in their houses if the variable of having a horse was included in the model. In conclusion, this study shows endemicity of at least one spotted fever group Rickettsia in the study zone.

    Original languageEnglish
    Pages (from-to)477-482
    Number of pages6
    JournalTicks and Tick-borne Diseases
    Issue number4
    StatePublished - Jun 2017

    Bibliographical note

    Funding Information:
    We thank Colciencias for their financial support through project No. 111549326228 [Ecological study of Rickettsia endemicity in Colombia] “Estudio ecologico de endemicidad por Rickettsia en Colombia”. We are also grateful with the 2013/2014 Universidad de Antioquia sustainability program for their financial support.

    Publisher Copyright:
    © 2017 Elsevier GmbH


    • Birds
    • Colombia
    • Equines
    • Rickettsia


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