Overall, Only 1.5-5.6% of Stool Cultures are Positive (Clin Infect Dis, 2001) [MEDLINE]
However, in Cases of Severe Diarrhea, Bacterial Etiologies are Responsible for Most Cases
In Health Adults with Severe Community-Acquired Diarrhea (Defined as ≥4 Liquid Stools Per Day for >3 Days), 87% of Cases Had an Identified Bacterial Etiology (Clin Infect Dis, 1996) [MEDLINE]