A 29-Year-Old Woman with Acquired Immunodeficiency Syndrome Has Severe, Nonresolving

Multiple Choice

A 29-year-old woman with acquired immunodeficiency syndrome has severe, nonresolving watery diarrhea. It is not gray or greasy. Acid-fast oocysts are seen in the stools. What is the most likely causative agent?

A) Enterohemorrhagic Escherichia coli
B) Cryptosporidium
C) Enterotoxic Escherichia coli
D) Giardia
E) Salmonella