Short Report: One Case of Nasal Human Myiasis Caused by Third Stage Instar Larvae of Oestrus ovis

Javier LucientesDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Antonio ClavelDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Monserrat Ferrer-DufolDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Hector VallesDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Miguel A. PeribanezDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Maria J. Gracia-SalinasDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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Juan A. CastilloDepartamento de Patologia Animal (Parasitologia), Facultad de Veterinaria, Universidad de Zaragoza, Servicio de Microbiologia et Servicio de Otorrinolaringologia, Hospital Clinico Universitario, Universidad de Zaragoza, Zaragoza, Spain

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This is a report of a case of human nasal myiasis caused by third instar larvae of the sheep nasal bot fly, Oestrus ovis. Female flies rarely deposit first instar larvae in the eye, nostrils, and external auditory canal of humans, where they usually survive only a few days without further development. One human infestation by third instar larvae of O. ovis has been recorded in an patient infected with human immunodeficiency virus (HIV) in the United Kingdom. Our report describes a new case of nasal myiasis caused by the third instar larvae of the sheep bot fly in a patient without HIV or signs of any other disease.

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