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Braz J Microbiol ; 52(3): 1643-1648, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33931826

RESUMO

Infectious keratoconjunctivitis (IKC) is the most frequent ocular disease in livestock worldwide and is primarily caused by Moraxella bovis, M. ovis, and/or M. bovoculi. The economic impact of IKC is mainly due to ocular damage, which leads to weight loss, management difficulties, pain and discomfort, and cost of treatments. In horses, limited information is available on the association of Moraxella spp. with keratoconjunctivitis. The present report describes two cases of equine keratoconjunctivitis caused by members of the genus Moraxella. Both animals presented with lacrimation, conjunctivitis, photophobia, mucoid or purulent secretions, blepharitis, and conjunctival hyperemia. The diagnosis of IKC was based on the epidemiological and clinical findings; the etiological agent was identified through bacteriological (culture and biochemistry assays) and molecular testing (PCR and nucleotide sequencing). Our study reports the isolation of Moraxella bovoculi (SBP 88/19) and a putative new species/mutant of Moraxella (SBP 39/19) recovered from ocular secretions in horses. Thus, we suggest the inclusion of Moraxella spp. infection in the differential diagnosis of conjunctivitis in horses in Southern Brazil.


Assuntos
Cavalos/microbiologia , Ceratoconjuntivite Infecciosa , Moraxella , Infecções por Moraxellaceae , Animais , Brasil , Ceratoconjuntivite Infecciosa/diagnóstico , Moraxella/genética , Moraxella/isolamento & purificação , Infecções por Moraxellaceae/diagnóstico , Infecções por Moraxellaceae/veterinária
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