Baylisascaris procyonis, a nematode in urban raccoons and emerging zoonotic agent to be considered as a differential diagnosis of larva migrans in Costa Rica. Review.


  • Mario Baldi Universidad Nacional Programa de Investigación en Enfermedades Tropicales; Instituto de Salud Pública, Costa Rica
  • Martha Piche Programa de Investigación en Enfermedades Tropicales, Costa Rica
  • Mario Romero Universidad Nacional Programa de Investigación en Enfermedades Tropicales, Costa Rica
  • Sabine Elisabeth Hutter Universidad Veterinaria de Viena Instituto de Salud Pública, Austria
  • Víctor Montenegro Universidad Nacional Escuela de Medicina Veterinaria Laboratorio de Parasitología, Costa Rica
  • Chris Walzer Universidad Veterinaria de Viena Instituto de Ecología y Vida Silvestre, Austria



Raccoons, Baylisascaris procyonis, Public Heath, Animal Health, Larva migrans


The zoonotic helminth Baylisacaris procyonis is a parasite in urban raccoons (Procyon lotor) of increasing public health concern.  A new report alerts about the presence of these roundworms in urban raccoon populations in Costa Rica stressing the need to understand the parasite, its life cycle and preventive measures to avoid transmission to humans and pets.  This is a brief review of the most remarkable features of this parasite and its negative effects on animal and public health.  Additionally, emphasis is given on the best and most appropriate etiologic diagnostic methods in domestic animals, as well as treatment and prevention in dogs.  This article is meant to raise awareness in public and animal health caretakers to consider Bayliascaris procyonis as differential diagnosis for larva migrans in Costa Rica.


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How to Cite

Baylisascaris procyonis, a nematode in urban raccoons and emerging zoonotic agent to be considered as a differential diagnosis of larva migrans in Costa Rica. Review. (2017). Ciencias Veterinarias, 35(1), 33-41.

How to Cite

Baylisascaris procyonis, a nematode in urban raccoons and emerging zoonotic agent to be considered as a differential diagnosis of larva migrans in Costa Rica. Review. (2017). Ciencias Veterinarias, 35(1), 33-41.

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