Social & Preventive Medicine What amount of WHO ORS is required for a 1 year old child in first 4 hours of diarrhea? A 200-400ml B 400-600 ml C 600-800 ml D 800-1200 ml 💡 Explanation What amount of WHO ORS is required for a 1 year old child in first 4 hours of diarrhea? ✓ Correct Answer: C. 600-800 ml