Systemic infection by methicillin-resistant Staphylococcus pseudintermedius in a bitch
Santos, Jôiciglecia Pereira dosSouza, Valesca Ferreira Machado dePereira, Zayan SilvaCarneiro, Ianei de OliveiraFrade, Maria Talita SoaresVieira, Layze Cilmara Alves da Silva
Background: Staphylococcus pseudintermedius is an opportunistic pathogen, belonging to the genus Staphylococcus.The methicillin-resistant Staphylococci have the mecA-gene, which confers them with the ability of becoming resistant tomethicillin and multiple classes of antimicrobials, which makes the treatment of the affections caused by these specimensdifficult. This work describes a case of systemic infection and death by methicillin-resistant S. pseudintermedius, in a canine.Case: A crossbred bitch (Canis lupus familiaris), was admitted to the University Veterinary Hospital of the Federal Universityof Western Bahia (HVU-UFOB). The main complaint reported by the owner was the presence of mammary nodules andconstant nasal secretion. During the clinical examination was observed reactivity in the popliteal and left submandibularlymph nodes, pale mucous membranes, stomatitis, bilateral mucopurulent nasal secretion, abdominal pustules, serous secretion in the inguinal mammary gland and focal alopecia on the dorsum. On auscultation, was identified only arrhythmiaand the other physiological parameters of the animal were within normality for the species. Samples of the nasal secretionand of the secretion from the abdominal pustules were collected, and sent to the Veterinary Microbiology Laboratory ofthe same institution. The samples collected were sown in 5% Blood Agar (BA), Sabouraud Agar (SAB) and MacConkeyAgar (MCK), after 24 h was observed in BA the growth of macroscopically white colonies, with a humid aspect, creamyconsistency, with presence of catalase and α-hemolysis. Microscopically, was observed the presence of Gram-positivecocci, suggestive of Staphylococcus sp. Microscopically, was observed the presence of Gram-positive cocci, suggestiveof Staphylococcus sp. In the MALDI-TOF mass spectrometry, was identified S. pseudintermedius. Enrofloxacin [Enrotrat...(AU)
Texto completo