Aerosols

Definition

Aerosols are tiny particles or droplets suspended in the air that can carry pathogens. They play a crucial role in the transmission of infectious diseases through the respiratory route.

5 Must Know Facts For Your Next Test

1. Aerosols can remain airborne for extended periods, increasing the risk of inhalation and infection.
2. Pathogens such as viruses and bacteria can be transmitted via aerosols produced by coughing, sneezing, talking, or medical procedures.
3. The size of aerosol particles influences how deeply they can penetrate into the respiratory tract; smaller particles reach deeper into the lungs.
4. Environmental factors such as humidity and ventilation affect the stability and dispersion of aerosols.
5. Preventive measures like wearing masks and improving indoor ventilation help reduce aerosol transmission.

Review Questions

• How do aerosols contribute to the spread of respiratory diseases?
• What factors influence the stability and dispersion of aerosols in an environment?
• Why are smaller aerosol particles more dangerous in terms of disease transmission?

Related terms

Droplet Transmission: Transmission of pathogens via larger respiratory droplets that fall to surfaces quickly.

Airborne Transmission: Spread of pathogens through aerosols that remain infectious over long distances and time.

Fomite Transmission: Transmission through contaminated objects or surfaces touched by infected individuals.