![]() Incubation environments with reduced O (5-10%), increased CO2 (5-10%), and increased H (5-10%) at 37☌ are the optimum conditions. Cultures are not frequently attempted to establish a diagnosis. + rxns may be observed in as little as 1 hour. Can be recovered from the GI tract of humans and a variety of domestic and wild animals, including several species of birds.ĭiagnosis: visualize the thin, curved bacterial cells in histologic sections of gastric biopsy material or by demonstrating the rapid conversion of urea agar after implantation with a small portion of the biopsy. Is one of several spiral-shaped bacteria that have been observed in gastric secretions. Does not grow at 42☌ĭrug of choice for C. Will not grow on campy selective media containing cephalothin. It is susceptible to cephalothin but resistant to nalidixic acid, profiles opposite to that of C. Human infections that have been reported virtually always affect an individual who is debilitated, has compromised immune function, has a neoplastic disease, or has a chronic underlying disorder such as renal or hepatic failure.ĭoes not hydrolyze indoxyl acetate or sodium hippurate. It can be recovered from the placentas and stomach contents of the fetuses of aborted sheep and cattle. Is infrequently recovered from human sources but is an important cause of infective abortion in cattle and sheep. 3.incubation atmosphere, consisting of 5% oxygen, 10% CO2, and 85% nitrogen. 2.42☌, the optimum temperature for growth of this organism. ![]() Is the most important agent of diarrheal disease in humans.ġ."campy" agar to inhibit the overgrowth of the normal intestinal flora. ![]() Diabetes and alcoholism are common conditions predisposing to serious pneumococcal infections. Lobar type pneumonia and bacterial meningitis in adults, infants, and toddlers. The capsular material prevents phagocytosis and killing by the host phagocytic cells.Īlpha hemolytic and smooth, moist, or mucoid/"checker piece" appearance/ susceptibile to either bile or ethylhydrocupreine hydrochloride (Optochin) ID by + esculin hydrolysis in bile-esculin agar and by the inability to grow in 6.5% sodium chlorideĬan be divided into one of 83 different capsular serotypes(Latex agg, coagg, or the Neufeld quellung rxn)3, 4, 14, and 19, are particularly virulent. Penicillin, ampicillin, carbenicillin, cephalosporin 1st gen, erythromycin ![]() Penicillin, ampicillin, cephalosporin 1st gen, erythromycin Infections include meningitis, pneumonia, polynephritis, sepsis including endocarditis/in women, puerperal infection assctd w/ abortion and premature labor. Metabolism is fermentative with lactic acid produced as the chief end product. ID-Low conc of bacitracin (0.04 μg)/PYR +. Small transparent colonies/wide zone of beta hemolysis. It is the cause of classic streptococcal pharyngitis, colloquially known as "strep throat."ĭiseases include scarlet fever, rheumatic fever, endocarditis, and nephritis. Is among the most commonly recovered bacterial species in the clinical laboratory. Resistance to novobiocin is a key feature used in the presumptive identification of It is the most common coagulase-positive Staphylococcus species recovered from the skin of dogs. Has its natural habitat as part of the normal nasal and skin flora of various domestic animals, including dogs, cats, and horses. Has a particular predilection for causing urinary tract infections in young, healthy, sexually active females. Acid is produced from maltose, fructose, sucrose, and mannose.ĭrug of choice for Staphylococcus epidermidis Is the most frequently isolated coagulase-negative staphylococci from human sources.ĭoes not ferment mannitol, produces alkaline phosphatase, produces positive reactions for acetoin (Voges Proskauer), reduces nitrates to nitrites, and hydrolyzes urea. Penicillin and cephalosporin (1st generation)ĭrug of choice for Staphylococcus aureus, Strep pneumo ![]() AO is useful in demonstrating bacteria in specimens where concentrations may be low.Ĭatalase, Coagulase, Dnase, PYR, Nonmotile, Salt tolerance all + Is a basic fluorochrome dye that binds nonspecifically to nucleic acids, proteins, polysaccharides, and glycosaminoglycans. GN bacteria stain red Safranin-counterstain. Was discovered more than 100 years ago by Hans Christian Gram. It also colonizes the skin, particularly in intertriginous areas such as the groin and axilla, and may be found in the vaginal canal It may be found in 20 to 40% of the anterior nares of human adults. Is widely distributed in the external environment. ![]()
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