Airborne transmission of infection involves spread via which of the following?

Airborne transmission of infection involves spread via which of the following?

• A. Direct contact
• B. Droplets and dust
• C. Common vehicle
• D. Contaminated surfaces

Answer: (B)

Airborne transmission occurs when infectious agents travel through tiny particles that remain suspended in the air and can be inhaled by people at a distance. These particles can be carried by air currents and persist in the environment, making spread possible beyond immediate contact. That’s why “droplets and dust” is the best fit: small droplets that dry into droplet nuclei and dust particles can carry pathogens and circulate through the air. Direct contact requires physical touch between people, which isn’t about air movement. A common vehicle route involves a contaminated medium like food or water, not airborne particles. Contaminated surfaces involve touching a contaminated object and then a person, again not via the air. Understanding this helps in applying appropriate precautions, such as protective masks and proper ventilation for airborne infections.

Airborne transmission occurs when infectious agents travel through tiny particles that remain suspended in the air and can be inhaled by people at a distance. These particles can be carried by air currents and persist in the environment, making spread possible beyond immediate contact. That’s why “droplets and dust” is the best fit: small droplets that dry into droplet nuclei and dust particles can carry pathogens and circulate through the air.

Direct contact requires physical touch between people, which isn’t about air movement. A common vehicle route involves a contaminated medium like food or water, not airborne particles. Contaminated surfaces involve touching a contaminated object and then a person, again not via the air. Understanding this helps in applying appropriate precautions, such as protective masks and proper ventilation for airborne infections.