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Within a period of days, more than 45 teenagers in a small rural town were diagnosed with hemorrhagic colitis. Unfortunately, another 50 patients contracted the disease, 2 of which developed hemolytic uremic syndrome, before epidemiologists were able to identify the source of infection, a contaminated batch of ground beef at the local hamburger joint. Which microbe was most likely the causative agent of this outbreak?

Multiple sclerosis is a disease that affects myelinated nerve tracts.

Shingles is a nerve infection caused by the chickenpox virus.

At the time of diagnosis, most people with type 2 diabetes are which one of the following?

Which of the following terms describes the accumulation of fluid in the abdomen due to cirrhosis of the liver?

A 56-year-old African American female presents to the emergency room for evaluation of her hip following a fall in her shower. Her past medical history is notable for kidney stones and constipation as well as recent fatigue and weakness. What electrolyte imbalance might have led to her susceptibility to broken bones?

One of the actions of glucagon is which one of the following?

Cerebral palsy is a broad clinical term applied to permanent, nonprogressive motor problems owing to an insult to the brain in utero.

In the United States, which one of the following is the principal risk factor for hepatitis C infection?

Which one of the following is the root cause of cancer?