What is the mode of transmission for tuberculosis?

The mode of transmission for tuberculosis is airborne transmission. This means that the bacteria causing tuberculosis, specifically Mycobacterium tuberculosis, are spread through the air when a person with active TB coughs, sneezes, or talks, releasing tiny droplets that can be inhaled by others in the vicinity. This method of spread is crucial to understand when considering the control and prevention of tuberculosis infections, as it highlights the importance of ventilation, isolation of infected individuals, and respiratory hygiene measures.

In contrast, direct contact with infected fluids is typical for infections spread through blood or bodily fluids, which is not how tuberculosis is transmitted. Vector-borne transmission involves insects or other organisms that carry pathogens from one host to another, a mechanism not applicable to tuberculosis. Lastly, sexual contact is not a recognized mode of transmission for tuberculosis, as the bacteria are primarily transmitted through respiratory routes rather than intimate or sexual interactions. Understanding these various modes helps in developing effective public health strategies to mitigate the spread of tuberculosis.