Which mode of disease transmission best describes a human bite?

The mode of disease transmission that best describes a human bite is parenteral. This type of transmission occurs when pathogens are introduced directly into the body through the skin or a mucous membrane, bypassing traditional barriers such as the digestive system. When a human bite occurs, the skin is broken, which allows for pathogens from saliva or any other bacteria present in the mouth to enter the bloodstream or underlying tissues directly.

Given the other choices, airborne transmission involves diseases that are spread through tiny droplets in the air, often over long distances. Contact transmission refers to diseases spread through direct or indirect physical contact with an infected person or contaminated surface. Droplet transmission occurs when respiratory droplets from a cough or sneeze come into contact with another person, typically over short distances. In contrast to these modes, a human bite represents a direct transfer of pathogens into the body, which aligns with the definition of parenteral transmission.