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GI tract pathogens are commonly serotyoped based on components of their cell envelope. Which component is designated by the letter “H” in most typing schemes?

Infection with the HIV virus follows a predictable pattern. Identify it below.

For patients suffering from enteroinvasive Escherichia coli infections, why is treatment with anti-peristaltic agents like loperamide contraindicated for patients experiencing from mild to moderate disease?

Fecal bacteriotherapy is recommended to treat severe cases of 

A patient is suffering from a bout of diarrhea that has left them dehydrated. Nucleic acid amplification testing has revealed the presence of a single stranded RNA genome. What virus is the cause of the patients disease?

Of the following viral infections, which is associated with right-sided abdominal pain, clay-colored feces, dark urine, and jaundice?

Which toxin is appropriately matched to its mechanism of action?

BONUS: Intravenous drug users would be expected to be at a greater risk for infection from ______ than non-drug users.

Infection by which of the following viruses can be prevented by vaccination?

A patient attends clinic with a painful inflammation of the skin on her leg. Examination of the tissue reveals the presence of a pus-producing infection that began in epidermis, but has expanded to include the layer below. What disease is she most likely suffering from?