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Various Factors contributing to Bacterial Classification
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The bacterial classification serves a diversity of functions. Due to this diversity, bacteria may be classified based on many different typing methods. The significant characteristic of all these classification systems is that a life form recognized by a scientist, clinician or an epidemiologist is recognized as the same life form by another. In the recent years, the typing modes utilized by the clinical microbiologists and clinicians are based on phenotypic typing. These typing methods involve staining properties, bacterial morphology or the oxygen requirements of the organism along with an array of biochemical analysis. In addition to that, the modes of pathogen transmission, the organism’s natural reservoir and the vectors of transmission are also of huge importance.

The clinical microbiology labs characterize or identify the bacteria by means of a series of biochemical analysis. The procedure involves isolating and purifying the pathogen that is present in the clinical sample followed by performing various biochemical tests that indicates the bacterial species.

Bacteria can be classified on the basis of serology that is by means of particular selected antiserum. This is due to the protein or carbohydrate moiety on the cell wall or the polysaccharide capsule of the bacteria that acts as an antigen (for example H and O polysaccharide antigens of the bacterial species salmonella).

While analysing the probable pathogen of the disease it is also essential to know the environmental reservoirs of the probable organism. The environmental or natural reservoirs are normally categorized into those that are endogenous (present on or inside the human body) and exogenous (present in the environment somewhere). The possible source of the infection also plays a key role while considering the probable cause of the infection for differential diagnosis. For instance, the skin rashes appearing in a hiker who had the multiple tick bites in the past is more probable to be borrelia, the agent which causes the Lyme disease.
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RE: Various Factors contributing to Bacterial Classification - by adimed - 09-20-2013, 01:25 PM
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