title: Staphylococcus pseudintermedius and Staphylococcus schleiferi Subspecies coagulans from Canine Pyoderma Cases in Grenada, West Indies, and Their Susceptibility to Beta-Lactam Drugs.
abstract: Over a 2-year period 66 cases of canine pyoderma in Grenada, West Indies, were examined by aerobic culture in order to ascertain the bacteria involved and their antimicrobial resistance patterns. Of the 116 total bacterial isolates obtained, the majority belonged to Gram-positive species, and the most common organism identified through biochemical and molecular methods was Staphylococcus pseudintermedius. Additionally, identification of a Staphylococcus schleiferi subspecies coagulans isolate was confirmed by molecular methods. All isolates of staphylococci were susceptible to beta-lactam drugs: amoxicillin-clavulanic acid, cefovecin, cefoxitin, cefpodoxime, and cephalothin. They were also susceptible to chloramphenicol and enrofloxacin. Resistance was highest to tetracycline. Methicillin resistance was not detected in any isolate of S. pseudintermedius or in S. schleiferi. Among the Gram-negative bacteria, the most common species was Klebsiella pneumoniae, followed by Acinetobacter baumannii/calcoaceticus. The only drug to which all Gram-negative isolates were susceptible was enrofloxacin. This report is the first to confirm the presence of S. pseudintermedius and S. schleiferi subspecies coagulans, in dogs with pyoderma in Grenada, and the susceptibility of staphylococcal isolates to the majority of beta-lactam drugs used in veterinary practice.
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Harry
authors.identifier: 0000-0001-7503-2013
authors.initials: H
authors.lastname: Hariharan
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Kathryn
authors.initials: K
authors.lastname: Gibson
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Ross
authors.identifier: 0000-0001-6038-290X
authors.initials: R
authors.lastname: Peterson
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Matthew
authors.initials: M
authors.lastname: Frankie
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Vanessa
authors.initials: V
authors.lastname: Matthew
authors.affiliation: Department of Veterinary Clinical Sciences, Ohio State University School of Veterinary Medicine, Columbus, OH 43210, USA.
authors.forename: Joshua
authors.initials: J
authors.lastname: Daniels
authors.affiliation: Department of Veterinary Clinical Sciences, Ohio State University School of Veterinary Medicine, Columbus, OH 43210, USA.
authors.forename: Nancy A
authors.initials: NA
authors.lastname: Martin
authors.affiliation: Private Veterinary Practice, St. George, Grenada.
authors.forename: Linton
authors.initials: L
authors.lastname: Andrews
authors.affiliation: Small Animal Medicine and Surgery Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Tara
authors.initials: T
authors.lastname: Paterson
authors.affiliation: Pathobiology Academic Program, St. George's University School of Veterinary Medicine, University Centre, Grenada.
authors.forename: Ravindra N
authors.initials: RN
authors.lastname: Sharma