Isolation of Gram-positive (pick one: bacilli/cocci/vibrios) from food suspected of being the source of an outbreak of diarrhea indicates the disease is the result of bacterial intoxication.
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Recognize that the presence of Gram-positive bacteria in food can indicate a potential source of bacterial intoxication, particularly if the bacteria produce toxins that can cause illness. Show more…
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Q1. What is the main difference between species of Bacillus and species of Clostridium? Bacillus are aerobic organisms while Clostridium are anaerobic. Q2. What is the most commonly isolated Clostridium from clinical samples? Q3. What is the most common pathogenic organism that is the cause of healthcare-associated diarrhea? Q4. What is responsible for the range of disease symptoms associated with C. difficile? Q5. What is the cause of hemolysis produced by Gram-positive cocci such as Streptococcus pyogenes? Q6. In the CNA plate, what inhibits the growth of Gram-negative rods?
Madhur L.
Adi S.
Identify the pathogen with its associated food source based on the scenario data given below: H) Stored, refrigerated rice: Isolated Gram + bacilli, 2) No growth on MacConkey agar 3) Following tests results: MR: negative VP: positive Urease: negative Catalase: positive Oxidase: negative Glucose fermentation: positive Indole production: negative Glucose fermentation: positive Citrate Utilization: positive The most likely bacterial species is__________________
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