The genus Yersinia includes a group of organisms with a wide range in pathogenic potential. On one end of the spectrum are saprophytic organisms that do not cause animal disease, while on the other end is the organism that causes plague. Recently, we have compared the genomic sequences of the agent that causes plague on an intraspecies level. This article will present a brief description of the pathogenic Yersinia in terms of disease and properties including virulence factors. The currently available genomic information will also be discussed with an emphasis on the emergence of plague as a unique bacterial disease.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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