Question

Mention the name of the causal organism, symptoms and the mode of transmission of the disease Amoebiasis. 

OR 

a. Name the protozoan parasite that causes amoebic dysentery in humans. 

b. Mention two diagnostic symptoms of the disease. 

c. How is this disease transmitted to others? 

OR 

a. Name the agent that causes amoebiasis and the human body organ that it infects. 

b. Write the symptoms and the mode of transmission of the disease.

Answer 1

Amoebic dysentery (Amoebiasis) 

• It is caused by an intestinal endoparasite, Entamoeba histolytica, found in large intestine of humans. 

• Housefly acts as mechanical carrier and transmits the parasite from faeces of infected person to the food. 

• Infection takes place through contaminated food and water. 

Symptoms 

a. Abdominal pain 

b. Constipation 

c. Cramps 

d. Stool with excess mucous and blood clots.