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Following treatment of a severe bloodstream infection with high doses of antibiotics, a patient develops a Clostridium dificile infection. Stool samples taken before and after the development of the infection reveal the presence of the bacteria in both samples. Thus, we would expect the source of infection to be:

During the complement cascade, what event occurs as the final step in the formation of the membrane attack complex (MAC)?

 The ability of a virus to replicate within a human cell is controlled by the:

Staphylococcus aureus produces a Collagenase and Hyalronidase. Why do these enzymes facilitate invasion of sub-dermal tissue?

BONUS: Which of the following would be expected to be a sequlae?

Which of the following administration methods would be expected to provide the highest blood concentration of the drug in the shortest possible time?

To which bacterial ribosome subunit do most protein synthesis inhibiting antibiotics bind?

Loss of IgA activity would be associated with increased risk of mucosal infection due to:

Identify the bacterial virulence factor that is correctly matched to its function.

Bacterial secretion systems that release A-B toxins are most likely to deliver that toxin to