Exam 15: Bacillus and Similar Organisms

A patient diagnosed with Bacillus anthracis is allergic to penicillin.Which antibiotic can be given that will be therapeutically effective?

Suspect spore-forming, gram-positive Bacillus species that is nonhemolytic, nonmotile, and penicillin-susceptible and that produces a wide zone of lecithinase on egg yolk agar can be identified as:

A U.S.Food and Drug Administration (FDA)-cleared immunochromatographic test produces a red line on the cassette and can presumptively identify which gram-positive Bacillus that is nonhemolytic and morphologically has a "Medusa head" appearance when grown on 5% sheep blood agar?

Media that can be used for isolating Bacillus anthracis include:

Which of the following is described as a spore-forming, gram-positive Bacillus that is beta-hemolytic, motile, Voges-Proskauer (VP)-positive, and citrate-positive and causes two types of food poisoning as a result of toxin release?

Enzyme-linked immunosorbent assays (ELISAs)are available that can serologically identify which Bacillus species?

Induction of sporulation by Bacillus species can be accomplished with _____ agar.

Induction of capsule formation by B.anthracis can be accomplished with _____ agar.

Which of the following types of anthrax occurs after ingesting the spores and affects the abdominal or oropharyngeal area? (Patients usually die from toxemia and overwhelming sepsis.)

A gram-positive Bacillus, which is beta-hemolytic on 5% sheep blood agar, produces a wide zone of lecithinase on egg yolk agar, is nonmotile, and was isolated from the stool of a patient with abdominal pain and watery diarrhea.Because of the patient's existing immunocompromised state, the physician administered penicillin as the antibiotic therapy.The patient's condition did not improve after 7 days of treatment.Which one of the following statements explains the reason for the antibiotic failure?