Which of the following diseases is caused by a protozoan?
Amoebic dysentery
Amoebic dysentery (amoebiasis) is an infection of the intestine caused by an amoeba (protozoan) called Entamoeba histolytica. The symptoms include severe diarrhoea with blood and sharp abdominal pain. It is transmitted by contaminated food and water.
Chicken pox is a viral disease while tuberculosis and pneumonia are bacterial diseases.