Prevalence, Sites of Colonization, and Antimicrobial Resistance Among Staphylococcus Pseudintermedius Isolated from Healthy Dogs in Saskatoon, Canada

Abstract

Abstract. In dogs, Staphylococcus pseudintermedius is a common colonizer and is associated with pyoderma, otitis externa, and urinary tract infections. In the current study, nasal, pharyngeal, and rectal swabs were taken from 175 healthy dogs and cultured for S. pseudintermedius. The organism was found in 153 dogs (87.4%), including individuals in which it exclusively colonized in the nares (n 5 1), pharynx (n 5 16), and rectum (n 5 17). Antimicrobial susceptibility testing revealed that a remarkably susceptible population, 46.4% of isolates, was susceptible to all drugs tested, and resistance to penicillin (39.9%) and tetracycline (23.5%) were most common. No methicillin (oxacillin)-resistant isolates were identified. Although 3.3% of isolates were erythromycin resistant, no inducible clindamycin resistance was found. The data provide a baseline for future resistance surveillance and indicate that multiple body sites, including at least the pharynx and rectum, should be tested.

Genetic and phenotypic characterization of methicillin-resistant staphylococci isolated from veterinary hospitals in South Korea

“…36 In the current study, the anus of hospitalized animals was the primary site colonized by S. pseudintermedius (35.3%, 6 strains from 17 samples), a colonization rate higher than that reported for the rectum in a previous study. 32 Interestingly, the current study found that 43.2% (16 strains from 37 samples) of veterinary staff had S. pseudintermedius in their nasal cavity. This detection rate is higher compared with previous studies in which 5-23% of veterinary staff members were found to have S. pseudintermedius.…”

Anatomical patterns of colonization of pets with staphylococcal species in homes of people with methicillin-resistant Staphylococcus aureus (MRSA) skin or soft tissue infection (SSTI)

“…Several studies have considered anatomic site patterns of S. pseudintermedius carriage in dogs (Harvey and Noble, 1998;Hartmann et al, 2005;Griffeth et al, 2008;Rubin and Chirino-Trejo, 2011;Paul et al, 2012) and cats (Abraham et al, 2007). However, fewer studies that detail canine and especially feline anatomic carriage site patterns of S. aureus are available (Abraham et al, 2007;Griffeth et al, 2008;Fazakerley et al, 2009;Davis et al, 2014).…”

Characterization of recombinant wild-type and nontoxigenic protein A from Staphylococcus pseudintermedius

“…Staphylococcus pseudintermedius , a gram-positive, coagulase-positive bacterium, is commonly found on the normal skin and nasal flora of household pets [1,2]. It is the major cause of canine skin and ear infections [2,3].…”