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...

Background and Objective: Klebsiella pneumoniae is one of the three pathogens that has become a global disease control and treatment problem due to its resistance to common antibiotics. For this reason, it is crucial to study the genes that cause antibiotic resistance in it. Therefore, the aim of this study was to investigate the phenotypic and genotypic frequency of tetracycline resistance in ...

background: acinetobacter baumannii plays an important role in some types of nosocomial infections as an opportunist microorganism which increases levels of resistance to antibacterial drugs and disinfectants. objectives: the aim of this study was to determine the resistance and sensitivity of a. baumannii to different antibiotics and evaluate the minimal inhibitory concentration (mic) for cipr...

Lactobacillus sakei is extensively used as functional starter culture in fermented meat products. One of the safety criteria of a starter culture is the absence of potentially transferable antibiotic resistance determinants. However, tetracycline-resistant L. sakei strains have already been observed. In this paper, we show that tetracycline resistance in L. sakei Rits 9, a strain isolated from ...

The majority of Neisseria gonorrhoeae isolates are susceptible to a broad range of antibiotics. However, the prevalence of resistant strains has risen dramatically since the 1970s. The first strain of penieillinaseproducing N. gonorrhoeae (PPNG) in Canada was isolated in 19760>. In April 1987, the Ontario Ministry of Health found that PPNG accounted for 2.7% of all gonococcal isolates(2). This ...

The gliding bacterium Flexibacter sp. strain FS-1 exhibits inducible resistance to chloramphenicol (Cmr) and tetracycline (Tcr). Either chloramphenicol or tetracycline alone induced a Cmr Tcr phenotype. The resistance is apparently not plasmid encoded.

Tetracycline resistance determinants of R plasmids from the fish pathogens Aeromonas hydrophila, Edwardsiella tarda, and Pasteurella piscicida were classified as class D by their expression of resistance to tetracycline and minocycline and through their DNA structure.

Of 203 human clinical isolates of Campylobacter jejuni from Alberta, Canada (1999 to 2002), 101 isolates (50%) were resistant to at least 64 microg of tetracycline/ml, with four isolates exhibiting higher levels of tetracycline resistance (512 microg/ml). In total, the MICs for 37% of tetracycline-resistant isolates (256 to 512 microg/ml) were higher than those previously reported in C. jejuni ...