To determine the source of pyococci causing attacks of sepsis in infantile eczema 20 patients with continuing eczema were followed up for one year, regular swabs being taken from the skin, nose, throat, and family contacts. The staphylococci were phage typed and the streptococci serologically typed. Staphylococci of the same phage type in most cases remained in reservoir sites on the skin and c...

Gale and his group have shown that (1) staphylococci grown "deficient" in glutamic acid can concentrate the free amino acid inside the cells, provided a source of eneigy is present (Gale, 1947; Taylor, 1947); (2) penicillin, in growthinhibitory amounts, prevents the uptake of glutamic acid by staphylococci if the organisms are first grown for a short period in the presence of the antibiotic (Ga...

BACKGROUND Otitis externa is a common inflammatory ear disease in dogs caused by a variety of pathogens, and coagulase-positive staphylococci are frequently isolated from such infections. OBJECTIVE To identify antimicrobial susceptibility profiles and methicillin-resistant strains among coagulase-positive staphylococci isolated from otitis externa in dogs. METHODS A cross-sectional study wa...

The type of penicillinase plasmid carried by penicillin-resistant cultures of Staphylococcus aureus isolated from eight London hospitals has been determined. Among ;endemic' hospital staphylococci, cultures resistant to mercury salts and producing large amounts of A-type penicillinase, a high proportion of which is extracellular, are most common. C-type penicillinase is rarely associated with r...

Methicillin resistance in Staphylococcus aureus has been associated with alterations in the penicillin-binding proteins (PBPs). An intriguing property of all methicillin-resistant staphylococci is the dependence of resistance on the pH value of the growth medium. Growth of such bacteria at pH 5.2 completely suppressed the expression of methicillin resistance. We have examined the PBP patterns o...

OBJECTIVE To investigate the conjunctival and nasal flora and the antibiotic susceptibility profiles of isolates from patients undergoing cataract surgery. DESIGN Observational and cross-sectional study. SETTING A single-centre study in Taiwan. PARTICIPANTS 128 consecutive patients precataract surgery. PRIMARY AND SECONDARY OUTCOME MEASURES METHODS Conjunctival and nasal cultures were p...

results of total 60 s. aureus isolates, 51 (85%) were mrsa, and of 60 cons, 7 (11.66%) were mrcons. the results showed that the mic of chlorhexidine for all 120 isolates was 1-16 μg/ml. 15 (12.5%) isolates carried qaca/b gene, 26 (21.7%) carried qacc gene, and 38 (31.7%) carried smr gene. conclusions maintenance of mrsa isolates in the attendance of low amounts of antiseptics could result in th...

Methicillin-resistant staphylococci (MRS), and methicillin-resistant Staphylococcus aureus (MRSA) in particular, have become a public and veterinary health concern. The search for MRS reservoirs outside human hospitals is needed in order to understand the reasons for their persistence and to control their spread. MRS have been isolated from rats, but little is known about their occurrence in fo...

this study was carried out to find the extent of staphylococcal carriages including methicillin resistant staphylococcus aureus mrsa in employee's of teaching university hospitals in yazd. nasal swabs of 742 employees in four different medical teaching hospitals in yazd were collected, and tested for detection of staphylococci strains. out of 742 employees, 94 (12.7%) were carrier of staphyloco...