Many of these organisms are easily controlled, but some problems have arisen with the advent of newer and more powerful antimicrobial agents. Lastly, anticipated antimicrobial susceptibility patterns will be considered. While all of these organisms are ubiquitous in the environment, individual case reports and nosocomial-outbreak reports indicate that they are capable of causing major infectious disease problems. Their clinical significance will also be discussed. In this review, the evolution of the “family tree” of Proteus, Providencia, and Morganella will be discussed within each genus, along with the current methods for the identification of each species of the genus, incorporating both conventional biochemical and commercial methods. It is clear that while the more pathogenic members of the Enterobacteriaceae, such as Salmonella, Shigella, and Escherichia coli, may exact more urgent attention, the presence of any one of these less pathogenic genera in body fluids and in some deep or superficial lesions would lead one to suspect their potential etiologic nature. As with other opportunistic pathogens, they may also cause morbidity and mortality. Species within these genera are not considered frank pathogens, unlike some of the other members of the Enterobacteriaceae, and are commonly isolated in clinical laboratories. The taxonomy of Proteus, Providencia, and Morganella is a fascinating story that is enmeshed throughout the early history of the evolving science of microbiology.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |