Epidemic dysentery | Cholera | |
Causative organism | Shigella spp | Vibrio cholerae O1 (Vibrio cholerae O139) |
Infective dose | 10 to 100 organisms | 1000 to 1,000,000 organisms |
Clinical features | Bloody diarrhea Abdominal cramps Fever Rectal pain | Watery diarrhea Dehydration Vomiting |
Complications | Seizures Rectal prolapse Hemolytic-uremic syndrome Sepsis | Severe hypovolemia/shock Electrolyte abnormalities |
Treatment | Antibiotics | Rehydration |
Transmission | Food and water Person-to-person | Food and water |
Case fatality rate | 10 to 20% (untreated) 5% (treated) | 40% (untreated) <1% (treated) |