Dysentery is a waterborne disease caused by water contaminated by:

Correct option is D

Dysentery is primarily caused by contaminated water containing either bacteria or protozoans. The two main types of dysentery are:
1. Bacillary dysentery: Caused by bacteria, typically of the genus Shigella.
2. Amoebic dysentery: Caused by protozoan parasites, most commonly Entamoeba histolytica.
Both types of dysentery lead to symptoms such as diarrhea with blood or mucus, abdominal pain, and fever. The mode of transmission involves consuming contaminated food or water.
Information Booster: · Dysentery can be prevented through proper sanitation and access to clean drinking water.
· Shigella bacteria and Entamoeba histolytica are the most common causative agents.
· Bacillary dysentery is more common in crowded and unsanitary conditions.
· Amoebic dysentery is more prevalent in tropical and subtropical regions.
· Treatment includes rehydration, antibiotics (for bacillary dysentery), or anti-protozoal drugs (for amoebic dysentery).
Additional Knowledge: (a) Virus: While some viruses like rotavirus and norovirus can cause severe diarrhea, they are not responsible for dysentery.