What defines an airborne infection?

An airborne infection is defined as an infection that is spread from person to person through the air, particularly via respiratory droplets or aerosols that can be inhaled by others. When an infected person coughs, sneezes, or talks, they can release tiny particles containing pathogens into the air. These particles can remain suspended for a period of time and travel over distances, allowing for the transmission of the infection to individuals who breathe in the contaminated air.

This mode of transmission is distinct from other means, such as touching contaminated surfaces, which involves contact transmission, or the spread through bodily fluids, which focuses on direct physical exchange of fluids. Additionally, while some infections may be treated with antibiotics, the classification of an infection as airborne does not depend on its treatment modality but rather on the method of its spread. Understanding the specific mechanisms of airborne transmission is crucial for prevention and control in public health contexts, particularly in settings such as hospitals or crowded environments, where the risk of transmission can be increased.