Social & Preventive Medicine According to the WHO , what is the minimum bacteriological standard for drinking water – A All the samples should not contain coliform organisms B 3 consecutive samples of water should not contain any coliforms C 3 coliforms in a 100 ml water D 1 coliform in a 100 ml water 💡 Explanation According to the WHO , what is the minimum bacteriological standard for drinking water - ✓ Correct Answer: A. All the samples should not contain coliform organisms