Question

Of the following diseases, which one is least infectious?

• A. Leprosy
• B. Tuberculosis
• C. Conjunctivitis
• D. Hepatitis

Answer 1

Answer: (A)

Leprosy

Leprosy is an infectious disease. It affects the peripheral nerves, skin, upper respiratory tract, eyes, and nasal mucosa. It is caused by a bacillus bacterium known as Mycobacterium leprae. It can be considered as a mild infection because it can be easily cured by the drugs like dapsone.

Pulmonary TB (in the lungs) is highly contagious. It spreads when a person who has active TB breathes out air that has the TB bacteria in it and then another person breathes in the bacteria from the air. Conjunctivitis can be caused by an infection (virus or bacteria), which is highly contagious. People can develop conjunctivitis if someone comes into contact with discharge from the eyes, nose or throat of an infected person through touch, coughing and sneezing. Hepatitis A is a contagious liver infection caused by the hepatitis A virus (HAV). It is usually spread by eating or drinking food or water contaminated with infected faeces.

Therefore, the correct answer is option A.