Which of the following is NOT a zoonosis transmitted through aerosols?

• A. Influenza
• B. Tuberculosis
• C. Q Fever
• D. Botulism

Answer: (D)

Understanding how diseases jump from animals to humans relies on the route of transmission. Aerosol transmission means inhaling tiny droplets or dust that contain the pathogen. Influenza, tuberculosis, and Q fever are classic zoonotic infections that can spread this way: influenza via respiratory droplets and aerosols from infected animals or people, tuberculosis through airborne droplets, and Q fever through inhalation of contaminated dust near infected livestock.

Botulism, however, is not a zoonosis and does not spread through aerosols. It results from ingesting the preformed toxin in improperly canned or preserved foods or from wound infections with toxin-producing bacteria. There’s no person-to-person or animal-to-human aerosol transmission for botulism, so it does not fit the pattern of zoonotic diseases transmitted via aerosols.