Candida Candida is a very common genus of fungi which take on the form of yeast instead of mold. There are many species of Candida, probably about 20 or so, although it is possible more are yet to be discovered and described. C. albicans is probably the one species of yeast that is most likely …

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Staphylococcus is the genus name of a very large group of closely related bacteria, some of which are commonly found on and in the human body, and some of these bacteria are notorious causes of infection and disease. Among the most common of these bacteria that are capable of causing disease are Staphylococcus aureus and …

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Shigella is a genus group of bacteria that contains four species, S. dysenteriae, S. flexneri, S. boydii, and S. sonnei.  While these are frequently referred to as “species,” it is probably more scientifically correct to refer to them as biotypes of Escherichia, but because of the important medical differences between infections with Shigella versus most …

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Salmonella is the genus name of a large group of bacteria which however contains only two distinct species.  Unlike many bacterial genus groups the distinctions among the many, at last count 2,501, individually recognized types of Salmonella are not species but instead are known as serovars, or serological variants.  These variants are recognized by differing …

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Pseudomonas is the genus name of a large group of bacteria, some of which can infect and sicken humans.  The number of bacteria assigned to Pseudomonas has declined in recent years as the advent and widespread adoption of genetic testing of bacteria has caused many former members of Pseudomonas to be moved to existing, or …

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K. pneumoniae

Klebsiella pneumoniae is the specific name of a bacterium that is capable of causing serious illness, especially pneumonia, as the name suggests, in susceptible people.  Klebsiella bacteria are found in several areas of the human body, especially in the intestinal tract, where they do not cause disease, but when circumstances allow, they can be very …

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Escherichia Basics Escherichia is the genus name of a group of bacteria that contains at least 7 different species, although by far the most well-known and well-studied is clearly Escherichia coli (E. coli).  Because E. coli is so common in the environment and in humans, as well as in other animals and because it is …

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Enterococcus is the genus name of a group of bacteria that contains about 20 different species that have been implicated in human disease at some point.  However, the overwhelming majority of such infections result from Enterococcus faecalis (E. faecalis) with most all of the remaining infections being accounted for by Enterococcus faecium (E. faecium).  The …

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Extended Spectrum Beta-Lactamase Resistant (ESBLR) Enterobacteriaceae

This is a fairly technical and complex issue but we will do our best to make it accessible and comprehensible to the average person.  It is best approached by breaking down the components of the issue into their respective parts. Enterobacteriaceae Basics To start with, the Enterobacteriaceae is the scientific name for a large family …

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