Question

All the diseases are spread by housefly except

• A. leprosy
• B. dysentery
• C. typhoid
• D. sleeping sickness

Answer 1

The correct option is D

sleeping sickness

The correct option is D.

Explanation of correct option:

1. Sleeping sickness is also called “Trypanosomiasis”, and the disease is induced by microscopic parasites of the species Trypanosoma brucei which are transmitted by the tsetse fly.
2. Symptoms of sleeping sickness include fever, severe headaches, irritability, intense drowsiness, enlarged lymph nodes, and aching muscles and joints.

Explanation of incorrect options:

Option A:

1. Leprosy, also called, Hensen's disease is induced by Mycobacterium leprae.
2. The disease is transmitted through the droplets of the infected individuals.

Option B:

1. Dysentery is the infection of the gut caused due to the Shigella bacteria.
2. It causes loose feces with mucous and blood.

Option C:

1. Typhoid is a bacterial infection caused by Salmonella typhi.
2. The disease is contracted by consuming contaminated water and food.

Final answer: All the diseases are spread by houseflies except Sleeping sickness