Aerosol transmission refers to the spread of infectious agents through tiny droplets that are released into the air when a person breathes, talks, coughs, or sneezes. These droplets can remain suspended in the air for extended periods and can travel over distances greater than 6 feet, allowing the pathogens to infect others who inhale them. This mode of transmission is particularly significant for respiratory viruses, such as COVID-19 and influenza. Understanding aerosol transmission is crucial for implementing effective public health measures, such as wearing masks and ensuring proper ventilation in indoor spaces to reduce the risk of infection.