What is the primary mode of transmission for tuberculosis?

The primary mode of transmission for tuberculosis (TB) is through respiratory secretions, whereby the bacteria are released into the air when an infected person coughs, sneezes, or speaks. These tiny droplets can be inhaled by others, leading to potential infection. This airborne transmission is a key factor in the spread of TB, as it allows the bacteria to easily reach and infect the lungs of those nearby, making it a highly contagious disease in crowded or poorly ventilated environments.

While other transmission methods listed in the choices may be relevant to different infections, they are not applicable to tuberculosis. Understanding this primary route of transmission is essential for implementing effective control measures to reduce the spread of TB and protect public health.