Name a human disease, its casual organism, symptoms (any three) and vector, spread by intake of water and food contaminated by human faecal matter.

Dysentery is a disease caused by the Entamoeba histolytica. Mild stomach pains, frequent passage of stool or diarrhoea and mild illness are the major symptoms of dysentery. it is transmitted by faecal matter and contaminated food and water. Housefly may act as a vector for the disease.