Final answer:
Droplet transmission occurs when pathogens in droplets are expelled from an infected host's respiratory system during coughing or sneezing and are then inhaled by nearby people.
Step-by-step explanation:
Transfer of an infectious agent via droplets larger than 5um in diameter is known as droplet transmission. It occurs when pathogens in droplets are expelled from an infected host's respiratory system during coughing or sneezing. The pathogens are then inhaled by nearby people, who become new hosts for the pathogens.