نتایج جستجو برای: negative staphylococci
تعداد نتایج: 538476 فیلتر نتایج به سال:
Antimicrobial susceptibilities of coagulase-negative staphylococci isolated from urinary infections.
The susceptibilities of 107 urinary isolates of coagulase-negative staphylococci to 19 antibiotics was determined by an agar dilution technique. Major differences in the antimicrobial susceptibilities of species of coagulase-negative staphylococci were observed. Staphylococcus epidermidis was more resistant to a wider spectrum of antibiotics than was Staphylococcus saprophyticus.
OBJECTIVE To evaluate the in vitro susceptibility and cross-resistance of gatifloxacin and moxifloxacin vs older fluoroquinolones among coagulase-negative staphylococci recovered from patients with clinical endophthalmitis. METHODS A combination of E tests and disk diffusion methods was used to determine in vitro susceptibility and cross-resistance for 111 coagulase-negative staphylococci iso...
The emergence of Staphylococcus strains resistant to methicillin occurred shortly after the introduction of methicillin into clinical use . Resistance to methicillin in clinical isolates of Staphylococci has been explained by the production of a characteristic penicillin-binding protein (PBP) , designated PBP2a, that has a decrea...
A total of 842 staphylococci isolated from clinical material over an eight-month period and regarded as probable pathogens were identified according to lyogroup. Almost half the isolates belonged to lyogroups other than lyogroup I (Staphylococcus aureus), suggesting that coagulase-negative staphylococci are increasingly involved in human infections. All isolates were tested for sensitivity to 1...
An electronic surveillance network for monitoring antibiotic resistance in The Netherlands has been in operation since 1989. Seven public health laboratories participate and the system covers about 25% of all bacteriological determinations in The Netherlands. This paper reports the results of staphylococci isolated in the period 1989-1995. About 0.3% of the Staphylococcus aureus isolates in the...
Over a period of 5 years we have recovered 32 clinical isolates of coagulase-negative staphylococci (CoNS) exhibiting either decreased levels of susceptibility or true resistance to teicoplanin (MICs, 16 to 128 micrograms/ml); these isolates make up 0.55% of the total CoNS isolated by us. Twenty-nine of the strains were also methicillin resistant, and all were susceptible to vancomycin. Fourtee...
Coagulase negative staphylococci have become prevalent nosocomial pathogens following the implantation of foreign bodies such as prosthetic valves, cerebrospinal fluid shunts, joint prostheses and central venous catheters. They are also the most common contaminants of blood cultures so that a means of differentiating contamination from a true bacteraemia is important.' Assessment of the clinica...
Twenty four reference strains and 112 clinical isolates of coagulase negative staphylococci (CNS) were examined for their reactions in the crystal violet test. Some species gave a white reaction and others a purple reaction. Results were consistent and reproducible and each species gave only one pattern of crystal violet reaction. Within the limited variety of species represented in the clinica...
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