Diarrhea, Community-Acquired, Persistent/Chronic

PATHOGENS

• Giardia lamblia
• Entamoeba histolytica
• Clostridium difficile
• Campylobacter jejuni
• Salmonella species
• Shigella species
• Enterohemorrhagic Escherichia coli (EHEC): also known as Shiga toxin-producing E. coli (STEC)
• Other pathogenic Escherichia coli: enterotoxigenic, enteropathogenic, enteroinvasive, and enteroaggregative
• Other infectious causes include Aeromonas species, Plesiomonas species, Cryptosporidium parvum, Microsporidia, Yersinia species, Vibrio species, Bacteroides fragilis, Clostridium perfringens, Rotavirus, Norovirus/Calicivirus, Enteric adenovirus, Astrovirus, small round viruses, Coronavirus, Herpes simplex virus, and Cytomegalovirus, Cyclospora cayetanensis, Isospora belli, Mycobacterium avium complex and Strongyloides stercoralis.
• Unusual Causes: Neiserria gonorrhea, Treponema pallidum, Chlamydia trachomatis (Including LGV serovars), and Tropheryma whipplei