Podcast
Questions and Answers
Which organism is most likely responsible for the food poisoning due to ingestion of fried rice?
Which organism is most likely responsible for the food poisoning due to ingestion of fried rice?
- Staphylococcus aureus
- Bacillus cereus (correct)
- Clostridia botulinum
- Bacillus anthracis
What is the correct statement concerning Bacillus anthracis organism?
What is the correct statement concerning Bacillus anthracis organism?
- It can cause latent infection and can be re-activated after several years
- It can produce potent neurotoxins that result in nerve system damage
- It has a strong endotoxin that can cause shock like state after antibiotic administration
- It may be spread in a body via lymphatic or blood stream and cause septicemia (correct)
Which diagnosis is associated with 'Medusa head' colonies on nutrient agar?
Which diagnosis is associated with 'Medusa head' colonies on nutrient agar?
- Plague
- Anthrax (correct)
- Leptospirosis
- Syphilis
What type of vaccine is available against anthrax?
What type of vaccine is available against anthrax?
Which properties are important virulence determinants of B. anthracis?
Which properties are important virulence determinants of B. anthracis?
What is the most likely cause of gas gangrene?
What is the most likely cause of gas gangrene?
Which of the following organisms is associated with the 'string of pearl' colonies on penicillin-containing medium?
Which of the following organisms is associated with the 'string of pearl' colonies on penicillin-containing medium?
Which clinical form of anthrax most likely has a poor prognosis?
Which clinical form of anthrax most likely has a poor prognosis?
What is the major reservoir for B. anthracis infection?
What is the major reservoir for B. anthracis infection?
Which zoonotic disease has NO arthropod vector?
Which zoonotic disease has NO arthropod vector?
Which organism produces a frequently misdiagnosed food poisoning associated with fried rice?
Which organism produces a frequently misdiagnosed food poisoning associated with fried rice?
Which bacteria paired with a mode of transmission is correct?
Which bacteria paired with a mode of transmission is correct?
What is the cause of the relapses in relapsing fever?
What is the cause of the relapses in relapsing fever?
Each of the following statements about Weil’s disease is correct, except:
Each of the following statements about Weil’s disease is correct, except:
Which lab test can be used to distinguish epidemic and endemic relapsing fever?
Which lab test can be used to distinguish epidemic and endemic relapsing fever?
Which of the following diseases is not a zoonotic disease?
Which of the following diseases is not a zoonotic disease?
What is the major reservoir for B. anthracis infection?
What is the major reservoir for B. anthracis infection?
What organism produces a frequently misdiagnosed food poisoning associated with fried rice?
What organism produces a frequently misdiagnosed food poisoning associated with fried rice?
Study Notes
Food Poisoning and Bacteria
- Bacillus cereus is the organism most likely responsible for food poisoning due to ingestion of fried rice.
- It is frequently misdiagnosed.
Bacillus Anthracis
- Bacillus anthracis is associated with 'Medusa head' colonies on nutrient agar.
- The correct statement concerning Bacillus anthracis is that it is a zoonotic disease with no arthropod vector.
- The major reservoir for B. anthracis infection is animals, particularly herbivores.
- Important virulence determinants of B. anthracis include capsule and toxins.
- A cell-free vaccine is available against anthrax.
- Cutaneous anthrax has a good prognosis, while inhalation anthrax has a poor prognosis.
Gas Gangrene and Relapsing Fever
- Gas gangrene is most likely caused by Clostridium perfringens.
- Borrelia recurrentis is the cause of relapses in relapsing fever.
- The correct pairing of organism and mode of transmission is Borrelia recurrentis and lice.
- Epidemic and endemic relapsing fever can be distinguished by the lab test of PCR (polymerase chain reaction).
Zoonotic Diseases and Weil's Disease
- Weil's disease is a zoonotic disease, and each of the following statements about it is correct, except one: leptospirosis is not transmitted by human-to-human contact.
- Brucellosis is a zoonotic disease, but it is not the correct answer to any of the above questions.
- Streptobacillus moniliformis is associated with the 'string of pearl' colonies on penicillin-containing medium.
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Description
Test your knowledge of special bacteriology with this quiz focused on food poisoning and the characteristics of Bacillus anthracis. Answer questions about organisms causing food poisoning and statements about the B. anthracis organism.
