Feline thelaziosis caused by Thelazia callipaeda in Portugal
2013
Soares, Carla | Sousa, Sérgio Ramalho | Anastácio, Sofia Ferreira | Matias, Maria Goreti | Marquês, Inês | Mascarenhas, Salvador | Vieira, Maria João | de Carvalho, Luís Madeira | Otranto, Domenico
Thelazia callipaeda (Spirurida, Thelaziidae) is a nematode that lives in the conjunctival sac of domestic and wild carnivores, rabbits and humans causing mild to severe symptoms (e.g., conjunctivitis, lacrimation, epiphora, blepharospasm, keratitis and even corneal ulceration) in infected animals. This report describes an autochthonous case of thelaziosis in a cat from the central region of Portugal, representing the most occidental record of thelaziosis in Europe. Adult nematodes recovered from alive animal were morphological identified as T. callipaeda. A portion of the mitochondrial cytochrome c oxidase subunit 1 gene (cox 1) from nematode specimens was amplified by PCR. Cox1 sequences of all specimens were identical to T. callipaeda haplotype 1. Additionally to these findings, a recent description of thelaziosis in the northern region of Portugal suggests that T. callipaeda has successfully established in Portugal.
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