RESUMO
Ninety-five clinical strains of Gram-negative bacteria were examined for resistance to mercury, silver and disinfectants. 41% of the strains possessed resistance to mercury, 21% to silver and 7.3% of the strains were resistant to chlorhexidine. Mercury resistance was shown to be plasmid-mediated in 17 strains and silver resistance in 10 strains. Chlorhexidine resistance was not shown to be transferable.
Assuntos
Clorexidina/farmacologia , Desinfetantes/farmacologia , Resistência Microbiana a Medicamentos , Enterobacteriaceae/efeitos dos fármacos , Mercúrio/farmacologia , Metais/farmacologia , Pseudomonas/efeitos dos fármacos , Fatores R , Prata/farmacologiaRESUMO
Forty samples of Malaysian cooked foods were examined for the presence of antibiotic-resistant coliforms and R plasmids. Twenty seven (68%) of the foods had antibiotic-resistant coliforms and 5 (13%) had R plasmids. Nineteen samples (48%) had total bacterial counts over 10(6) per gm and in 5 samples, no coliforms were detected. Our findings show that cooked food may be one possible way by which R plasmids are spread. The control of the spread of R plasmids is discussed.