TITLE

Vigilancia de la infección por Rickettsia sp. en capibaras (Hydrochoerus hydrochaeris) un modelo potencial de alerta epidemiológica en zonas endémicas

AUTHOR(S)
Miranda, Jorge; Contreras, Verónica; Negrete, Yésica; Labruna, Marcelo B.; Máttar, Salim
PUB. DATE
June 2011
SOURCE
Biomédica: Revista del Instituto Nacional de Salud;jun2011, Vol. 31 Issue 2, p216
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Introduction. Capybaras (Hydrochoerus hydrochaeris) are considered amplifying hosts of Rickettsia sp. These rodents are usually parasitized by the tick vector, Amblyomma cajennense, the main vector of rickettsioses in humans and animals in South America. Capybaras can be used as sentinels in detection of circulation of rickettsiae. Objective. Antibodies to rickettsiae of spotted fever group were detected in capybaras in a rural area of Cordoba Province, northern Colombia. Materials and methods. Sera were analyzed from 36 capybaras in a rural area of Monteria (village of San Jeronimo) in Córdoba. For the detection of IgG antibodies, indirect immunofluorescence was performed. The antigens were derived from R. rickettsia strain Taiaçu isolated in Brazil. Capybara sera were diluted 1:64 for IFA analysis. Ticks were collected from each capybara (also known as chigüiro) and identified to species. Results. The seroprevalence of spotted fever group Rickettsia was 22% (8 capybaras). Four sera had a titer of 1:64, 3 had a titer of 1:128 and one serum had a titer of 1:512. All ticks removed from the capybaras (n=933) were taxonomically identified as Amblyomma cajennense. Conclusion. Colombia has areas endemic for rickettsioses, as indicated by confirmed annual outbreaks. The current study reports the first evidence of natural rickettsial infection of the spotted fever group in capybaras from Colombia. The findings suggest that capybaras can be used as sentinels for the circulation of rickettsiae and can identify endemic areas for the transmission of rickettsial diseases.
ACCESSION #
65095392

 

Related Articles

  • Ecoepidemiología de la infección por rickettsias en roedores, ectoparásitos y humanos en el noroeste de Antioquia, Colombia. Quintero, Juan Carlos; Londoño, Andrés Felipe; Díaz, Francisco J.; Agudelo-Flórez, Piedad; Arboleda, Margarita; Rodas, Juan David // Biomédica: Revista del Instituto Nacional de Salud;jul2013, p38 

    Introduction: Rickettsia spp. are tick, flea or lice-borne pathogenic bacterium, usually carried by rodents. In the last decade three outbreaks of rickettsial disease including fatalities, occurred in the provinces of Antioquia and Córdoba in northwestern Colombia. Objective: The purpose of...

  • Rickettsial infection in Amblyomma cajennense ticks and capybaras (Hydrochoerus hydrochaeris) in a Brazilian spotted fever-endemic area. Krawczak, Felipe S.; Nieri-Bastos, Fernanda A.; Nunes, Fernanda P.; Soares, João F.; Moraes-Filho, Jonas; Labru, Marcelo B. // Parasites & Vectors;2014, Vol. 7 Issue 1, p1 

    Background Brazilian spotted fever (BSF), caused by the bacterium Rickettsia rickettsii, is the deadliest spotted fever of the world. In most of the BSF-endemic areas, capybaras (Hydrochoerus hydrochaeris) are the principal host for the tick Amblyomma cajennense, which is the main vector of BSF....

  • Occurrence of Neospora caninum Antibodies in Capybaras (Hydrochaeris hydrochaeris) From São Paulo State, Brazil. Yai, L. E. O.; Ragozo, A. M. A.; Cañón-Franco, W. A.; Dubey, J. P.; Gennari, S. M. // Journal of Parasitology;Jun2008, Vol. 94 Issue 3, p766 

    Capybara (Hydrochaeris hydrochaeris) is a large rodent distributed throughout tropical America. Antibodies to Neospora caninum in 213 feral capybaras from 11 counties of the State of São Paulo, Brazil, were assessed using the indirect immunofluorescent antibody test (titer ⩾1:25) and...

  • Validity of the Weil-Felix test in the diagnosis of acute rickettsial infections in Sri Lanka Kularatne, S.A.M.; Gawarammana, I.B. // Transactions of the Royal Society of Tropical Medicine & Hygiene;Apr2009, Vol. 103 Issue 4, p423 

    Summary: The diagnosis of rickettsial infections in developing countries is based on clinical features and a positive Weil-Felix test (WFT), as tests such as indirect immunofluorescent antibody (IFA) assays are not available for routine use. We estimated the sensitivity of the WFT in Sri Lanka...

  • Global surveillance of rickettsial diseases: Memorandum from a WHO meeting.  // Bulletin of the World Health Organization;1993, Vol. 71 Issue 3/4, p293 

    Rickettsial diseases are widely distributed throughout the world and are particularly prevalent in developing countries. An indirect immunofluorescence antibody test and standard protocol for its use have been developed and distributed to laboratories in 37 countries. This Memorandum summarizes...

  • Antibodies against spotted fever group Rickettsia sp., in horses of the colombian Orinoquia. Riveros-Pinilla, Diego A.; Acevedo, G. Leidy; Londoño, Andrés F.; Góngora, O. Agustín // Revista MVZ Córdoba;2015 Supplement, Vol. 20, p5004 

    Objective. It was determined the presence of antibodies against Rickettsia sp. of the spotted fever group, in horses of 8 municipalities of the Colombian Orinoquia. Matherials and methods. A cross-sectional study was conducted on 246 sera from apparently healthy horses and processed by the...

  • Rickettsia in Amblyomma triste from Uruguay. Venzal, José M.; Castro, Oscar; Cabrera, Perla A.; Portillo, Aránzazu; Oteo, José A.; Estrada-Peña, Agustin // Emerging Infectious Diseases;Aug2004, Vol. 10 Issue 8, p1493 

    Our goal was to detect whether spotted fever group Rickettsia are found in the suspected vector of rickettsioses. Amblyomma triste, in Uruguay. Rickettsia parkeri was detected in A, triste, which suggests that this species could be considered a pathogenic agent responsible for human...

  • Gulf Coast Ticks ( Amblyomma maculatum) and Rickettsia parkeri, United States. Sumner, John W.; Durden, Lance A.; Goddard, Jerome; Stromdahl, Ellen Y.; Clark, Kerry L.; Reeves, Will K.; Paddock, Christopher D. // Emerging Infectious Diseases;May2007, Vol. 13 Issue 5, p751 

    Geographic distribution of Rickettsia parkeri in its US tick vector, Amblyomma maculatum, was evaluated by PCR. R. parkeri was detected in ticks from Florida, Georgia, Kentucky, Mississippi, Oklahoma, and South Carolina, which suggests that A. maculatum may be responsible for additional cases of...

  • Rickettsia parkeri in Amblyomma americanum Ticks, Tennessee and Georgia, USA. Cohen, Sara B.; Yabsley, Michael J.; Garrison, Laurel E.; Freye, James D.; Dunlap, Brett G.; Dunn, John R.; Mead, Daniel G.; Jones, Timothy F.; Moncayo, Abelardo C. // Emerging Infectious Diseases;Sep2009, Vol. 15 Issue 9, p1471 

    To determine the geographic distribution of the newly recognized human pathogen Rickettsia parkeri, we looked for this organism in ticks from Tennessee and Georgia, USA. Using PCR and sequence analysis, we identified R. parkeri in 2 Amblyomma americanum ticks. This rickettsiosis may be...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics