The Results from the Gram positive tests indicated that the unknown #4 was Streptococcus pyogenes. All seven tests on the unknown matched S. pyogenes perfectly. The blood agar plate proved the unknown to be β hemolytic‚ meaning the unknown bacteria was capable of complete hemolysis. This test separated the unknown into the β Streptococcus group‚ narrowing the possible bacteria to S. aureus or S. pyogenes. The Catalase test was used to determine if the unknown could break down hydrogen peroxide
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observed that organism B was non-motile and did not produce endospores. With these results‚ I narrowed down the possible species to Enterococcus faecalis‚ Enterococcus faecium‚ Lactococcus lactis‚ Leuconostoc mesenteroides‚ Pediococcus parvulus‚ and Streptococcus mitis. After obtaining some background information on these bacterial strains in the Strain Information handout‚ I decided to inoculate an arganine decarboxylase broth and a sheep blood agar plate to narrow down the possibilities of my unknown
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A 62-year old diabetic black man presents in the emergency room with a swollen left leg with areas of blanching and blue mottling. A "foul odor" is coming from a dressed wound. The physicians remove the dressing and a brownish fluid is seeping from a wounded area. The fluid contains what appear to be small bits of the tissue. No pus appears to be present. The wound has a strong "rotten" odor. Five days earlier‚ while at his work as a farmer‚ he caught the leg in his manure spreader‚ sustaining a
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sample were gram positive and to identify cells morphology. After that biochemical tests were chosen for unknown identification . first of all was done the catalase test to differentiate between the two types of cocci bacteria ( Staphylococcus and Streptococcus ) . Since unknown 8 was determined to be Staphylococcus coagulase test in addition to the following tests were performed on this
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resistant enterococci‚ Group A Streptococcus (Streptococcus pyogenes)‚ Group B Streptococcus‚ Group G Streptococcus‚ Glycopeptide resistant enterococci‚ Klebsiella species‚ Methicillin Resistant Staphylococcus aureus (MRSA)‚ Methicillin Sensitive Staphylococcus aureus (MSSA)‚ Norovirus‚ Pantoea agglomerans‚ Proteus species‚ Pseudomonas aeruginosa‚ Respiratory Tract Infections‚ Serratia species‚ Stenotrophomonas maltophilia‚ Streptococcus pneumoniae (Pneumococcus)‚ Streptococcus species (alpha- haemolytic)
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Unknown Experiment Introduction: The purpose of this experiment is to distinguish and indentify an unknown bacterium. There are several tests that can help one eliminate and narrow down the options. The most useful test‚ and the very first one done‚ is a gram stain. This test will tell whether the bacterium is gram-positive or gram-negative. After the type of gram stain is identified‚ the tester has a wide array of differentiating tests at their disposal. Based on the results from these
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(1). Tonsillitis most often occurs in children; however‚ the condition rarely occurs in children younger than 2 years. Tonsillitis caused by Streptococcus species typically occurs in children aged 5-15 years‚ while viral tonsillitis is more common in younger children (1). Most cases of bacterial tonsillitis are caused by group A beta-hemolytic Streptococcus pyogenes (GABHS). The oropharynx and Waldeyer tonsillar ring are normally colonized by many different species of aerobic and anaerobic bacteria
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deformity of the heart | |valves. (Lewis‚ 2011) | |Rheumatic fever may develop after an infection with Streptococcus bacteria (such as strep throat or scarlet fever). The disease can affect the heart‚ joints‚ skin‚| |and brain. (National Center for Biotechnology Information‚ National Institute Health‚ 2012)
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It could be mistaken for cellulitis which is a superficial inflammatory condition of the connective tissue. A vibrio species is also known to be capable of causing this disease. Type II Necrotizing Fasciitis is caused by the Group A Streptococcus bacterium. Streptococcus pyogenes is the most commonly reported pathogen involved in most cases of flesh eating bacteria. It is also the most dangerous. This bacterium usually results in widespread tissue necrosis. Type III Necrotizing Fasciitis is caused
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plus anaerobes and/or facultative anaerobes. It is frequently a postoperative‚ often abdominal infection with gas-forming organisms: anaerobic Bacteroides‚ Peptococcus and Clostridium; and facultative anaerobic bacteria such as alpha-hemolytic Streptococcus‚ Escherichia coli‚ Enterobacter‚ Klebsiella or Proteus species. Type B‚ monomicrobial group A beta-hemolytic streptococcal infection‚ is seen occasionally in conjunction with Staphylococcus aureus. It is also known as beta-hemolytic streptococcal
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