Suspect spore-forming,gram-positive Bacillus species that is γ-hemolytic,nonmotile,and penicillin-susceptible and that produces a wide zone of lecithinase on egg yolk agar can be identified as:
A)Corynebacterium diphtheria.
B)B.anthracis.
C)Bacillus cereus.
D)Corynebacterium jeikeium.

Question

Quizplus · Accepted Answer

B.anthracis should be suspected if typical γ-hemolytic "Medusa head" colonies are observed on 5% sheep blood agar and if the organism is subsequently found to be nonmotile and lecithinase-positive.

Suspect Spore-Forming,gram-Positive Bacillus Species That Is γ-Hemolytic,nonmotile,and Penicillin-Susceptible and That