Almost all true<unk> l emergencies are of noninfectious origin
85% of<unk>  is infectious in etiology
Viruses cause vast majority of infectious<unk> 
Bacterial causes are responsible for most cases of severe<unk> 
Foreign travel associated with 80% probability of bacterial<unk>  (see Traveler's<unk> 
Viruses cause vast majority of infectious<unk> 
Bacterial causes are responsible for most cases of severe<unk> 
Foreign travel associated with 80% probability of bacterial<unk>  (see Traveler's<unk> 
Foreign travel associated with 80% probability of bacterial<unk>  (see Traveler's<unk> <unk> : Increased frequency of defection, usually >3 bowel movements per day
Hyperacute: 1-6 hr
Acute: less than 3 weeks in duration
Gastroenteritis:<unk>  with nausea and/or vomiting
Dysentery:<unk>  with blood/mucus/pus
Invasive = Infectious
Acute diarrhea
Viral 
Acute gastroenteritis 
Bacterial
Acute gastroenteritis
Campylobacter
Acute fever
Shigella