Tuberculosis, commonly known as TB, is an infectious disease that primarily affects the lungs. It is caused by the bacterium Mycobacterium tuberculosis. TB is one of the most common infectious diseases in the world, and according to the World Health Organization (WHO), it is the leading cause of death from a single infectious agent, surpassing HIV/AIDS.

The transmission of TB occurs through the air when an infected person coughs, sneezes, speaks, or even sings. The symptoms of TB include a persistent cough that lasts for more than two weeks, chest pain, coughing up blood, fatigue, fever, and night sweats. If left untreated, TB can be fatal.

To prevent the spread of TB, it is essential to diagnose and treat the disease early. WHO recommends the use of a combination of drugs called Directly Observed Treatment, Short-Course (DOTS) for the treatment of TB. This treatment lasts for six months and has been proven to be highly effective.

In addition to treatment, other measures such as improving ventilation, reducing overcrowding, and promoting cough etiquette can also reduce the spread of TB. It is essential to raise awareness about TB and the importance of early diagnosis and treatment to combat this global health threat.