Sir, Linezolid is a last-resort antimicrobial agent in human medicine approved for the control of serious infections caused by Grampositive pathogens. Transferable linezolid resistance is based on the multiresistance gene cfr. Although originally found in staphylococci, this gene has meanwhile been reported in various Grampositive and even Gram-negative bacteria. The emergence of the multiresis...

PURPOSE The aim of this study was to compare the resistance patterns of bacteria in vitreous fluid from patients undergoing vitrectomy for diagnostic reasons, with bacteria of other nosocomial infections. METHODS Vitreous fluid samples (n=144) were obtained from 133 patients undergoing vitrectomy for endophthalmitis, and 11 for uveitis as suspected endophthalmitis. They were Gram stained and ...

The distribution of the mec genes mecA, mecR1 and mecI that regulate the expression of methicillin resistance was investigated by PCR in 145 staphylococci of hospital origin. Determination of alterations and deletions in parts of the genes was achieved using 11 sets of primers in combined reactions. Methicillin-resistant Staphylococcus epidermidis strains appeared relatively stable, with 57.9% ...

A retrospective review of MRSA screening showed that of a total of 8911 patients screened pre-operatively between May 1996 and February 2001, 83 (0.9%) had MRSA isolated from one source or another. During the same period, 115 (13.6%) of 844 positive tissue samples taken during surgery grew Staphylococcus aureus. Of these only 1 (0.01%) was reported to be methicillin-resistant (MRSA). However, a...

Staphylococci were isolated from rural and urban populations in Iraq, which were not known to be exposed to either heavy metals or antibiotics. The antibiotic and heavy metal resistance patterns of these strains were analyzed in both mannitol-fermenting and nonfermenting strains. Over 90% of the strains were resistant to at least one of the following antibiotics: penicillin, chloramphenicol, er...

Combined sewer systems collect surface runoff as well as wastewater of industrial and domestic origin. During periods of heavy rainfall the capacity of the sewer system is exceeded and the overflow is discharged into receiving waters without any treatment. Consequently, combined sewer overflow (CSO) is considered as a major source of water pollution. This study investigates the effectiveness of...

OBJECTIVE To determine the trends of conjunctival sac bacterial flora isolated from patients prior to cataract surgery. SUBJECTS AND METHODS The study comprised 579 patients (579 eyes) who underwent cataract surgery. Specimens were collected by lightly rubbing the inferior palpebral conjunctival sac with a sterile cotton swab 2 weeks before surgery, and then cultured for isolation of bacteria...

Induced clindamycin resistance poses a major problem for the use of this drug to treat staphylococcal infections. An infectious etiology is often implicated in presence CoNS clinical specimens. A total 183 isolates Staphylococci spp. recovered from different specimens were studied. coagulase test was done select negative Staphylococci, and they confirmed by conventional microbiological techniqu...

Objective: Water plays an important role in both domestic and commercial settings. Pathogenic microbial contaminants, however, render water unsafe for use. There are several reports on the quality of used drinking purposes humans but few studies have been conducted animal farming. Methods: In this study, resistance pattern bacterial isolates from poultry production Ashanti region Ghana our prev...

staphylococci isolated from 98 mastitic cow’s milk samples were analyzed for the production of alpha,beta and delta-hemolysin on sheep, bovine and horse red blood cells and in vitro susceptibility to several antimicrobial agents. out of a total of 18 isolated strains, 100% demonstrated hemolytic activity either alone or in combined forms. among 8 isolates of s. aureus 3 isolates produced α/β an...