Many members of the Streptococcus genus are normal flora to the mouth, nose, and throat. aureus) and coagulase-negative (CoNS) staphs (S. The clinically significant species are generally separated into coagulase-positive staphs (S. Many species of Staphylococcus have the ability to form biofilms which can then colonize structures such as medical catheters, stents, heart valves, prostheses, shunts, and valves. Some of the most common diseases caused by Staphylococcus species include: impetigo, toxic shock syndrome, bacteremia, endocarditis, folliculitis furuncle (boils), and osteomyelitis (bone abscesses). Staphylococcus species are normal flora widespread over the body surface. What is the biochemical basis of the test?.What does a positive test result look like?.For each biochemical test you perform, make sure to record the following in your lab book:.Each pair may have to present information on the specific organism they identified including: test results, where that organism is part of the normal flora, when and where that organism becomes a pathogen, possible diseases the organism causes.You will conduct tests appropriate for your organism to determine genus and species identification. Each pair will receive one unknown organism to identify.The micro lab website, your textbook, the web and assorted books available in lab will be the reference materials necessary for you to successfully complete the next several weeks of lab work. This lab should give you the background information and techniques you will need to successfully perform biochemical tests in order to identify unknown bacterial samples. Biochemical Tests for Enteric Organisms.Biochemical Tests for Streptococcus Organisms.Biochemical Tests for Staphylococcus Organisms.
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