How is TB primarily spread from person to person?

Tuberculosis (TB) is primarily spread from person to person through airborne droplets. When an individual with active TB coughs, sneezes, speaks, or laughs, they expel tiny droplets that contain the TB bacteria into the air. These droplets can remain suspended in the air for a period of time and can be inhaled by others nearby, leading to potential transmission of the disease.

This method of transmission is particularly important for understanding the need for proper ventilation and the use of protective measures in environments where individuals may be in close proximity to those who are infected. It is crucial for health care settings, jails, and crowded living situations to recognize this airborne spread in order to implement effective public health strategies to control and prevent TB outbreaks.

Understanding the primary mode of transmission helps individuals and organizations develop appropriate responses, such as screening, patient isolation, and improving air quality, to mitigate the spread of TB in populations at risk.