The modern characteristics of species identification of coagulase-positive bacteria of Staphylococcus genus

Klinicheskaia laboratornaia diagnostika
A A BalbutskayaV N Skvortsov

Abstract

The development of molecular techniques of research in the end of XX century permitted to broaden nomenclature of species forming genus Staphylococcus that nowadays numbers 51 species and 27 sub-species. The pathogenic species of genus have a capacity to coagulate blood plasma of mammals forming group of coagulase-positive staphylococci including 7 species: S. aureus, S. delphini, S. intermedius, S. pseudintermedius, S. lutrae, S. schleiferi ssp. сoagulans, S hyicus. In clinical practice, S.aureus is considered as the most virulent among staphylococci. The cumulated data testifies increasing etiologic significance of other representatives of group of coagulase-positive staphylococci in human and animal infection pathology. The keen attention is needed to be paid to Staphylococcus intermedius of group (SIG), uniting three close kindred species: S. pseudintermedius, S. intermedius, S. delphini. Among them the most broadly prevailed are methicillin-resistant clones of S. pseudintermedius, capable to bring on in patient various pyoinflammatory diseases. The laboratory methods based on phenotype tests, provide no opportunity to differentiate coagulase-positive staphylococci because of significant similarity of phenotype characterist...Continue Reading

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