Outbreaks of human rabies transmitted by vampire bats in Alto Baudó and Bajo Baudó municipalities, department of Chocó, Colombia, 2004-2005

Jessika Valderrama, Ingrid García, Germán Figueroa, Edilberto Rico, Juliana Sanabria, Nicolás Rocha, Edgar Parra, Cecilia Saad, Andrés Páez, .

Keywords: rabies virus, Lyssavirus, chiroptera, bonding, human-pet, zoonoses, disease outbreaks, Colombia

Abstract


Introduction. During months May to July 2004, a rabies outbreak in the Embera community of Birrinchao, in the Purricha river basin department of Chocó was reported with 14 human deaths. Another rabies outbreak was reported in January 2005 in the black communities of Pató and Nauca in the neighboring municipality of Alto Baudó with 3 human deaths.
Objectives. To describe the largest outbreaks of human rabies transmitted by vampire bats reported in Colombia to date. To describe the diagnostic laboratory techniques used, and the
activities undertaken for the control of rabies in the area. To discuss the epidemiologic significance and public health implications of these rabies outbreaks.
Materials and methods. Rabies diagnosis was achieved by direct immunofluorescence, inoculation of mice and immunohistochemistry. Typing of the virus was achieved by indirect immunofluorescence using monoclonal antibodies. Rabies control activities were undertaken in Bajo Baudó consisting in a population census, human vaccination and application of antirabies sera, vaccination of dogs and cats, and application of anticoagulant to bats.
Results. Four human cases were confirmed as positive for rabies in both rabies outbreaks. Another 13 rabies cases in humans were inferred by strong epidemiological links. Rabies antigenic variant 3 was identified in the samples studied. Rabies control activities were conducted for a human rabies outbreak caused by vampire bats.
Conclusions. The human rabies outbreak in Bajo Baudó has been the largest reported in Colombia. It was caused by vampire bats, showing that these animals are a threat for human health. The implementation of control strategies for this kind of epizootic outbreaks is needed in South America. It remains unknown whether there is a link between this outbreak and one reported 6 months later in the neighboring municipality of Alto Baudó.

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  • Jessika Valderrama Subdirección de Vigilancia y Control en Salud Pública, Instituto Nacional de Salud, Bogotá D.C., Colombia.
  • Ingrid García Subdirección de Vigilancia y Control en Salud Pública, Instituto Nacional de Salud, Bogotá D.C., Colombia.
  • Germán Figueroa Secretaría de Salud del Departamento del Chocó, Chocó, Colombia.
  • Edilberto Rico Dirección Nacional de Zoonosis, Ministerio de la Protección Social, Bogotá D.C, Colombia.
  • Juliana Sanabria Secretaría de Salud del Departamento del Chocó, Chocó, Colombia.
  • Nicolás Rocha Secretaría de Salud del Departamento del Chocó, Chocó, Colombia.
  • Edgar Parra Laboratorio de Patología, Instituto Nacional de Salud, Bogotá D.C., Colombia.
  • Cecilia Saad Subdirección de Epidemiología, Instituto Nacional de Salud, Bogotá D.C., Colombia.
  • Andrés Páez Laboratorio de Virología, Instituto Nacional de Salud, Bogotá D.C., Colombia. Departamento de Ciencias Básicas, Universidad de La Salle, Bogotá D.C., Colombia

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How to Cite
1.
Valderrama J, García I, Figueroa G, Rico E, Sanabria J, Rocha N, et al. Outbreaks of human rabies transmitted by vampire bats in Alto Baudó and Bajo Baudó municipalities, department of Chocó, Colombia, 2004-2005. biomedica [Internet]. 2006 Sep. 1 [cited 2024 May 17];26(3):387-96. Available from: https://revistabiomedica.org/index.php/biomedica/article/view/357

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