California Registered Dental Assistant (RDA) Written Practice Exam

Influenza is mainly transmitted through droplet transmission, which occurs when an infected person talks, coughs, or sneezes and expels respiratory droplets that can travel a short distance and enter another person's body through their mouth, nose or eyes. Option A, vector, refers to when a living organism (such as a mosquito) transmits a disease to another organism. This is not the case for influenza. Option B, contact, refers to when a person directly touches an infected person or object and gets the disease. This type of transmission is less common for influenza compared to droplet transmission. Option D, airborne, refers to when small particles containing the virus remain suspended in the air and can be inhaled by another person. While this type of transmission can occur with some infectious diseases, it is not the main mechanism for influenza. This is why option C, droplet