Normal Microbiota and Pathogenicity — MCQs

All of the following are true regarding bacterial toxins EXCEPT:

Which organism causes prosthetic valve endocarditis within 60 days of surgery?

Hospital-acquired organisms include all except?

Which of the following is the best parameter to predict virulence of acute infectious illness?

A patient in the ICU with a central venous catheter (CVC) develops an infection. Microscopy reveals ovoid budding yeast cells. What is the most likely organism?

Which of the following bacteria is microaerophilic?

What is the predominant bacterial genus found in the human colon?

Fever, leukopenia, disseminated intravascular coagulation, and hypotension caused by members of the Enterobacteriaceae family are most strongly associated with which of the following structures?

Which of the following organisms does not fulfill Koch's postulates?

Germ theory of disease causation is given by: