Medicine: Microbiology quiz

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Cholera toxin irreversibly stimulates the cAMP-dependent pump in intestinal cells resulting in
A 47 - year - old man with chronic asthma who has been treated with steroids for many years develops a productive cough, weight loss, and night sweats. Imaging studies reveal the presence of abscesses in the lungs and brain. Cultures show gram - positive filaments that are weakly acid - fast Which of the following organ- isms is responsible for this patient's condition?
Laryngoscopes are sterilized by ?

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