Revelando o Impacto na Saúde Pública de Alternaria alternata associada a Animais de Companhia no Nordeste de Portugal

Autores

DOI:

https://doi.org/10.5965/223811712412025109

Palavras-chave:

Alternaria spp., cães, gatos, ocorrência, Portugal

Resumo

O género Alternaria é amplamente reconhecido como um conjunto de patógenos vegetais responsáveis por várias doenças importantes em plantas, podendo também representar alergénios prevalentes em animais e seres humanos. Este estudo teve como objetivo analisar a ocorrência de Alternaria spp. em cães e gatos no Norte de Portugal. Amostras de pelagem foram recolhidas utilizando a técnica de Mackenzie e inoculadas em SDA e PDA, sendo a identificação microscópica realizada através de chaves dicotómicas. No total, foram estudados 286 (83,9%) cães e 55 (16,1%) gatos. Das amostras, 45,0% (n = 157) eram provenientes de abrigos e 54,0% (n = 184) de Centros de Atendimento Médico-Veterinário (CAMV). Das amostras recolhidas dos 341 animais, em 303 foi possível isolar fungos. Alternaria alternata foi isolada em 23,75% dos animais estudados, com uma prevalência de 22,38% em cães e 30,91% em gatos. As amostras positivas foram analisadas de acordo com o sexo, espécie, idade, origem e sinais clínicos. Relativamente à origem, o valor de prevalência mais baixo (17,8%) foi observado em animais de abrigos, enquanto o valor mais elevado (28,8%) foi identificado em CAMV, sendo estas diferenças estatisticamente significativas (p < 0,000). Indivíduos jovens, idosos, grávidas ou imunocomprometidos (YOPI) apresentam um risco elevado, dado o potencial significativo de exposição a A. alternata através do contacto com animais de companhia, representando assim uma base para a transmissão.

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Publicado

2025-08-12

Como Citar

AFONSO, Paulo; SILVA, Diogo; VIEIRA, Ana Filipa; PINTO, Eduardo; SOARES, Ana Sofia; MATOS, Manuela; QUINTAS, Hélder; CARDOSO, Luís; COELHO, Ana Cláudia. Revelando o Impacto na Saúde Pública de Alternaria alternata associada a Animais de Companhia no Nordeste de Portugal. Revista de Ciências Agroveterinárias, Lages, v. 24, n. 1, p. 109–126, 2025. DOI: 10.5965/223811712412025109. Disponível em: https://www.revistas.udesc.br/index.php/agroveterinaria/article/view/25179. Acesso em: 7 set. 2025.

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Artigo de Pesquisa - Multiseções e Áreas Correlatas

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