Use of a nonmedicated dietary supplement correlates with increased prevalence of streptomycin-sulfa-tetracycline-resistant Escherichia coli on a dairy farm

Article Abstract:

A study is presented on how a dietary supplement affects the prevalence of antibiotic-resistant Escherichia coli on a dairy farm in Washington State. In 2003, the WSU dairy discontinued its use of a medicated dietary supplement and a low prevalence of streptomycin, sulfadiazine, and tetracycline (SSuT strains) was observed in 2004. The focus of the study was to formally test the observation, with the implication that success of SSuT strains is most likely due to phenotypic traits that take direct or indirect advantage of the presence of the dietary supplement.

Pharmaceutical Preparation Manufacturing, Pharmaceutical preparations, Streptomycin Preparations, Tetracycline Preparations, Drug resistance in microorganisms, Microbial drug resistance, Escherichia coli, Streptomycin, Tetracycline, Tetracyclines, Chemical properties

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Simultaneous discrimination between 15 fish pathogens by using 16S ribosomal DNA PCR and DNA microarrays

Article Abstract:

A new DNA microarray is formed with the help of the glass slides which is capable of identifying and discriminating the various bacterial species at the same time depending on the 16S ribosomal DNA (rDNA) polymorphisms. Finally pairing the 16S rDNA PCR with a microarray sensor seems to be ideal for analytical investigation and inspection of the commercially significant fish pathogens.

Analysis, Microbiology, Marine bacteria, Ribosomes

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Validation of mixed-genome microarrays as a method for genetic discrimination

Article Abstract:

The experimental and computational methods were used to assess the applicability of the mixed-genome microarray (MGM) in determining phylogenetic relationships among strains of bacteria.

Usage, Enterococcus, Genetic discrimination

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