Asunto(s)
Farmacorresistencia Bacteriana Múltiple , Infecciones por Escherichia coli/diagnóstico , Salmonelosis Animal/diagnóstico , Enfermedades de los Porcinos/microbiología , Animales , Infecciones por Escherichia coli/tratamiento farmacológico , Granjas , Heces/microbiología , Estudios de Seguimiento , Alemania , Salmonelosis Animal/tratamiento farmacológico , Porcinos , Enfermedades de los Porcinos/tratamiento farmacológico , beta-Lactamasas/genéticaRESUMEN
Pyogranulomatous rhinitis associated with an algal infection was diagnosed in a 25-year-old gelding and a 23-year-old mare had necrotizing sinusitis with intralesional algae and pigmented fungi. Algae were identified immunohistochemically in both cases as Prototheca spp. In the gelding, further characterization by polymerase chain reaction and sequencing revealed that the organism was Prototheca zopfii genotype 2. Fungi from the mare were identified as Pithomyces chartarum by molecular analysis. Prototheca species are achlorophyllous algae and P. chartarum represents a dematiaceous fungus; they are saprophytes and facultative pathogens. Prototheca spp. and P. chartarum should be considered as rare respiratory pathogens of horses.
Asunto(s)
Enfermedades de los Caballos/microbiología , Rinitis/microbiología , Rinitis/veterinaria , Sinusitis/microbiología , Sinusitis/veterinaria , Animales , Femenino , Caballos , Infecciones/microbiología , Masculino , Micosis/microbiología , Micosis/veterinaria , ProtothecaRESUMEN
Few published cases of feline protothecosis exist; all of these were restricted to the skin and speciation of the causative organism revealed an infection with Prototheca wickerhamii in each case. This report describes Prototheca zopfii genotype 2-induced inflammation of the nasal skin and cutaneous mucosa of the right nostril in a 14-year-old neutered female domestic shorthair cat. Microscopical examination revealed marked pyogranulomatous inflammation with numerous intralesional algae. These had a round to ovoid shape, were 8-21 µm in diameter, formed endospores and displayed a positive immunoreaction for Prototheca zopfii antigen. By 18S rRNA gene amplification and sequencing the intralesional algae were confirmed as Prototheca zopfii and further characterized as Prototheca zopfii genotype 2. This case report reveals Prototheca zopfii as an additional Prototheca species associated with feline protothecosis.