Introduction

Legionella species are aquatic microbes and pathogens of protozoa. Only a few of the more than 40 species cause infections in humans. The disease spectrum ranges from mild flulike symptoms to a highly lethal, severe form of pneumonia, called Legionnaires' disease. The pathogenic potential of Legionella was first recognized during an outbreak at the 56th annual American Legion convention in Philadelphia, PA, USA, in 1976, which led to the description of the pathogen. Today, legionellae are considered as one of the most important causative agents of community- and nosocomial-acquired pneumonia. Intensive research in the areas of molecular biology and genomics has greatly improved our understanding of the environmental fitness and pathogenicity of Legionella spp. Recent advances in molecular diagnostics offer a fast and specific diagnosis of the disease caused by Legionella species.

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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