Question

Tuberculosis is caused by
A. Clostridium
B. Mycobacterium
C. Vibrio cholerae
D. Salmonella typhi

Answer 1

Tuberculosis which commonly called TB is a bacterial disease. This is an infectious disease. Its infection spread through tiny droplets released from the coughs or sneezes of an infected person.

Complete answer:
Tuberculosis (TB) is a communicable bacterial disease. It is caused by a bacterium, Mycobacterium tuberculosis. The infection of TB spread through the air from the infected person to a healthy person. The TB bacteria are released through droplets in the air when a person infected with TB disease coughs, sneeze or speaks. People nearby may breathe in these bacteria and become infected. This disease is not spread by shaking someone’s hand, sharing food using someone towel or bed sheets. The symptoms depend on where in the body the Mycobacterium is growing in the body. TB bacteria usually grow in the lungs called pulmonary TB. The symptoms of pulmonary TB such as prolonged bad cough that lasts 3 weeks or longer, pain in the chest, coughing up blood or sputum. Some other symptoms are loss of weight, loss of appetite, fever. Tuberculosis disease can be prevented through a vaccine called Bacille Calmette-Guérin (BCG). This vaccine is not widely used in India and it is given to infants and small children but BCG does not always protect people from getting TB.
TB can be cured completely from taking medicines. A 6 months course of antibiotics can cure TB.

Thus, option B. Mycobacterium is the correct answer.

Note: Tuberculosis is a bacterial disease and it mainly affects the lungs, but it can affect any part of the body. It may affect the abdomen, glands, bones and nervous system. TB is a potentially serious disease but it can be cured when an infected person is treated with the right antibiotics.