Medicine A patient with diarrhea has a fecal smear that is negative for leukocytes. The patient&;s diarrhea is most likely caused by A Campylobacter enteritis B Shigellosis C Typhoid fever D Enterotoxigenic Escherichia coli 💡 Explanation A patient with diarrhea has a fecal smear that is negative for leukocytes. The patient&;s diarrhea is most likely caused by ✓ Correct Answer: D. Enterotoxigenic Escherichia coli