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Parasitas gastrointestinais e respiratórios em gatos na Ilha da Madeira, Portugal
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Authors
Abstract(s)
Os registos parasitológicos em felídeos são escassos em Portugal e praticamente inexistentes na Ilha da Madeira. Perante esta lacuna, foi realizado um estudo epidemiológico com o objetivo de investigar a prevalência de parasitas gastrointestinais e pulmonares em gatos alojados em gatis no concelho do Funchal, de forma a avaliar o grau de parasitismo e o seu potencial impacto na saúde pública. Entre dezembro de 2022 e fevereiro de 2023, foram recolhidas e analisadas 112 amostras fecais, utilizando as técnicas de flutuação de Willis, sedimentação natural, coloração de Ziehl-Neelsen modificada e técnica de Baermann. No total, 35,71% das amostras revelaram-se positivas para pelo menos um parasita, indicando um elevado nível de parasitismo. Foram identificadas nove espécies ou géneros parasitários: Aelurostrongylus abstrusus (16,96%), Cystoisospora felis (8,93%), Toxocara cati (8,04%), Ancylostoma spp. (7,14%), Taenia spp. (2,68%), Dipylidium caninum (1,80%), Cryptosporidium sp. (1,64%, num subconjunto de 61 amostras), Cystoisospora rivolta (0,89%) e Toxascaris leonina (0,89%). Giardia spp. e Troglostrongylus brevior não foram detetados, ainda que tenham sido pesquisados. Cinco das nove espécies identificadas apresentam potencial zoonótico significativo. Estes resultados evidenciam uma elevada prevalência de parasitismo na população felina da região e sublinham as implicações em saúde pública associadas a portadores com ausência de sinais clínicos. O estudo reforça a necessidade de uma maior sensibilização da população e dos profissionais de saúde, bem como da implementação de medidas preventivas e de controlo eficazes para mitigar o risco zoonótico
ABSTRACT - GASTROINTESTINAL AND RESPIRATORY PARASITES IN FELINES ON MADEIRA ISLAND, PORTUGAL - Parasitological records in felines are scarce in Portugal and virtually non-existent on Madeira Island. In response to this gap, an epidemiological study was conducted to investigate the prevalence of gastrointestinal and pulmonary parasites in domestic cats housed in catteries in the city of Funchal. The aim was to assess the degree of parasitism and its potential impact on public health. Between December 2022 and February 2023, a total of 112 fecal samples were collected and analyzed using Willis flotation, natural sedimentation, modified Ziehl-Neelsen staining, and the Baermann technique. Overall, 35.71% of samples tested positive for at least one parasite, indicating a high level of parasitism. Nine parasite species or genera were identified: Aelurostrongylus abstrusus (16.96%), Cystoisospora felis (8.93%), Toxocara cati (8.04%), Ancylostoma spp. (7.14%), Taenia spp. (2.68%), Dipylidium caninum (1.80%), Cryptosporidium sp. (1.64%, based on a subset of 61 samples), Cystoisospora rivolta (0.89%), and Toxascaris leonina (0.89%). Giardia spp. and Troglostrongylus brevior were not detected, although they were assessed. Five of the nine species identified possess significant zoonotic potential. These findings highlight a substantial prevalence of parasitism in the feline population of the region and emphasize the public health implications posed by carriers showing no clinical signs. The study reinforces the importance of increased awareness among both the general population and healthcare professionals, as well as the implementation of effective preventive and control measures to mitigate zoonotic risk
ABSTRACT - GASTROINTESTINAL AND RESPIRATORY PARASITES IN FELINES ON MADEIRA ISLAND, PORTUGAL - Parasitological records in felines are scarce in Portugal and virtually non-existent on Madeira Island. In response to this gap, an epidemiological study was conducted to investigate the prevalence of gastrointestinal and pulmonary parasites in domestic cats housed in catteries in the city of Funchal. The aim was to assess the degree of parasitism and its potential impact on public health. Between December 2022 and February 2023, a total of 112 fecal samples were collected and analyzed using Willis flotation, natural sedimentation, modified Ziehl-Neelsen staining, and the Baermann technique. Overall, 35.71% of samples tested positive for at least one parasite, indicating a high level of parasitism. Nine parasite species or genera were identified: Aelurostrongylus abstrusus (16.96%), Cystoisospora felis (8.93%), Toxocara cati (8.04%), Ancylostoma spp. (7.14%), Taenia spp. (2.68%), Dipylidium caninum (1.80%), Cryptosporidium sp. (1.64%, based on a subset of 61 samples), Cystoisospora rivolta (0.89%), and Toxascaris leonina (0.89%). Giardia spp. and Troglostrongylus brevior were not detected, although they were assessed. Five of the nine species identified possess significant zoonotic potential. These findings highlight a substantial prevalence of parasitism in the feline population of the region and emphasize the public health implications posed by carriers showing no clinical signs. The study reinforces the importance of increased awareness among both the general population and healthcare professionals, as well as the implementation of effective preventive and control measures to mitigate zoonotic risk
Description
Dissertação de Mestrado Integrado em Medicina Veterinária, área científica de Sanidade Animal
Keywords
Parasitas Gato Funchal Portugal Macaronésia Parasites Cat Funchal Portugal Macaronesia
Pedagogical Context
Citation
Neves CG. 2025. Parasitas gastrointestinais e respiratórios em gatos na Ilha da Madeira, Portugal [dissertação de mestrado]. Lisboa: FMV-Universidade de Lisboa
Publisher
Universidade de Lisboa, Faculdade de Medicina Veterinária