A noncompliant HIV-positive patient, with a CD4+ cell count of 40/mm3, presents with a pulmonary infection caused by an organism that requires 4 weeks to grow on Lowenstein-Jensen medium. What is the best descriptor of the most likely causative agent?
What underlying condition should repeated Neisseria meningitidis septicemias in an individual raise physician awareness of?
Which cestode does not require an intermediate host to infect humans?
A patient developed an infection following catheterization; a biofilm is present on the catheter. What is the most likely causative agent?
What is a nonnucleoside analog that inhibits herpesvirus DNA replication?
Which of the following is the principal immunoglobulin (Ig) in exocrine secretions?
A 26-year-old woman presents with high fever, painful and frequent urination, and left flank pain. The isolate is a Gram-negative, rod-shaped, facultative anaerobe that is oxidase negative and ferments glucose and lactose. With these data, what genus most likely caused the infection?
A 25-year-old male, who has recently started doing intravenous drugs, presents to the emergency department with fever and evidence of mild tricuspid valve insufficiency. As far as he knows, he had no previous damage to his heart. What is the most likely causative agent?
In the following pairs of organisms, which two are easiest to distinguish from each other by Gram stain?
What bacteria can use fermentation pathways, but also contain superoxide dismutase?