Genomic features of a highly virulent, ceftiofur-resistant, CTX-M-8-producing Escherichia coli ST224 causing fatal infection in a domestic cat.

Objectives: Escherichia coli strains producing extended-spectrum β-lactamases (ESBLs), especially CTX-M-type, have been largely described in companion animals; however, genomic data are lacking to clarify the clinical impact of ESBL-producing isolates in these hosts. The aim of this study was to present the genomic features of a highly virulent, ceftiofur-resistant, CTX-M-8-producing E. coli isolate from a case of pneumonia in a domestic cat with fatal outcome.

Multidrug-resistant CTX-M-15-producing Klebsiella pneumoniae ST231 associated with infection and persistent colonization of dog.

Extended spectrum β-lactamase (ESBL)-producing bacterial infections in veterinary medicine are a clinical and epidemiological challenge. We report a case of CTX-M-15-producing Klebsiella pneumoniae infection followed by persistent colonization, in a dog presenting with bilateral purulent nasal discharge and dyspnea. In this regard, 5 broad-spectrum cephalosporin-resistant K.

Pythiosis of the digestive tract in sheep.

Cutaneous and rhinofacial infections by Pythium insidiosum have previously been reported in sheep in Brazil. In the current study, a new form of pythiosis involving the alimentary tract of 2 nursing lambs from 2 different farms in the semiarid region of Brazil is described. The first lamb showed food regurgitation, lethargy, and anorexia, and died 5 days after the presentation of clinical signs.

Protothecosis by Prototheca wickerhamii in goats.

This article reports a new case of protothecosis by Prototheca wickerhamii in goats. The animal presented severe respiratory difficulty and nodules, sometimes ulcerated, in the nasal vestibule, mucocutaneous junction of the nostrils and skin of the face. Prototheca wickerhamii was isolated from the lesions.