Faculté de Médicine, Laboratoire de Bactériologie, UPRES EA 1655, 69372 Lyon Cedex 08, France Note how the dog's normal pigmentation masks the papular dermatitis.Crusting papular dermatitis caused matting of the hair in this medium-haired dog. Objective—To determine frequency with which Staphylococcus schleiferi could be isolated from dogs with pyoderma and antimicrobial susceptibility patterns of isolates that were obtained.. Design—Prospective study.. Animals—54 dogs with a first (n = 14) or recurrent (40) episode of pyoderma.. Procedure—Specimens were obtained and submitted for bacterial culture. Pyogenic staphylococcal infections occur most commonly in the skin, eyes, ears, and respiratory and genitourinary tracts.Virulent MDR staphylococcal infections are isolated most commonly from hospitalized patients, or patients that have a history of antibiotic use.
First described together in 1988, S. lugdunensis and S. schleiferi are coagulase-negative Staphylococcus (CNS) species that recently have emerged as potential zoonotic pathogens (Freney 1988). Colonized veterinary personnel are thought to be the most likely vectors of MRSA in veterinary hospitals.Treatment of deep or disseminated staphylococcal infection requires systemic therapy.Culture and susceptibility testing is imperative for such patients, regardless of the drug being considered for therapy.Although vancomycin and linezolid remain the only effective antibiotics for MDR strains in human health care settings, these drugs should be used only in exceptional circumstances in veterinary medicine. Deep pyoderma is characterized by deep nodules and fistulous tracts. 1 Almost all strains of S schleiferi produce lipase, esterase, and β-hemolysin as markers of virulence. Staph infections in dogs can cause many different symptoms. Deep pyoderma is characterized by deep nodules and fistulous tracts. antibiotics are used to treat staph infections, but there's been a gradual change in how well these antibiotics work. Veterinarians must practice good infection control practices with each case of pyoderma (e.g., washing hands, cleaning and disinfection), with these measures enhanced when MRS has been documented in the patient (e.g., gloves, protective outerwear, separation of MRS patient from rest of hospital patients). Methicillin resistance is particularly prevalent in clinical isolates of S schleiferi, with reported rates often exceeding 50%. Methicillin-resistant They are infections within, or colonization of, the epi-dermis and hair follicle.Staphylococcal pyoderma or folliculitis is very rare in cats.Colonization of the skin and hair follicles occurs secondary to changes in the cutaneous microclimate that result in conditions favorable to the growth of staphylococci.The most common underlying causes are ectoparasitic infestations, pruritus from allergic dermatoses, and endocrinopathies.Papules, erythema, scaling, epidermal collarettes, and/or hyperpigmentationHistory of previous improvement after an appropriate course of antibiotic therapyCytological identification of cocci (possibly with other bacteria) in a sample taken from a pustule, from the underside of a crust, or from the surface a lesionBacterial culture of the contents of a pustule or material collected from a collaretteElimination of the condition and a clinical cure after appropriate antibiotic therapyAny underlying or predisposing factors are treated to maximize the chance of a clinical cure and minimize recurrences.If only a few lesions are seen, then topical therapy alone can be used.Apply topical antimicrobial ointments or creams that contain mupirocin, neomycin, benzoyl peroxide, or chlorhexidine, SID to BID for 7 to 14 days.If the lesions are widespread or do not improve with topical treatment, then administer systemic antibiotics for a minimum of 21 days (Recheck the animal 7 to 14 days after treatment is initiated, and continue therapy for at least 7 days after resolution of all signs.Prognosis for complete resolution of the condition is good, especially if the underlying cause is controlled or eliminated.One additional concern on staphylococci is their capacity to acquire antimicrobial resistance and particularly the spread of methicillin-resistant strains in health care institutions, the community, and livestock herds.
CONCLUSIONS AND CLINICAL RELEVANCE: Results suggested that coagulase-negative and coagulase-positive S schleiferi are potential pathogens in dogs and are often oxacillin resistant. for the first 2 weeks of treatment. Major Clinical Signs: Cutaneous epidermal collarettes, pruritus, erythema, papules, pustules, alopecia. Staphylococcal infections in dogs are not as simple to treat since the emergence of methicillin resistance. Lane 1, PCR analysis was performed to determine the presence of homology between D1 to D3 of the binding domain of the Agarose gel electrophoresis of an aliquot of the PCR mixtures is shown in Fig. Handwashing between patients is imperative. Staphylococcus schleiferi subsp. Cutaneous cytology is necessary.Erythema caused by secondary infection in an allergic dog.