Besides animal density, which factor influences the spread of FMD?

Besides animal density, which factor influences the spread of FMD?

• A. Vaccination status
• B. Ventilation
• C. Breed of cattle
• D. Feed quality

Answer: (B)

Aerosol transmission is a major route for FMD spread, so how air moves around animals greatly influences transmission. Ventilation controls the concentration of infectious aerosols: good ventilation dilutes and removes these particles, reducing exposure and spread; poor ventilation lets aerosols accumulate near infected animals and be carried by air currents to susceptible animals, increasing transmission risk. Vaccination status affects whether an animal becomes infected, but it doesn’t determine how infectious particles disperse; breed and feed quality don’t have a direct impact on aerosol dissemination.

Aerosol transmission is a major route for FMD spread, so how air moves around animals greatly influences transmission. Ventilation controls the concentration of infectious aerosols: good ventilation dilutes and removes these particles, reducing exposure and spread; poor ventilation lets aerosols accumulate near infected animals and be carried by air currents to susceptible animals, increasing transmission risk. Vaccination status affects whether an animal becomes infected, but it doesn’t determine how infectious particles disperse; breed and feed quality don’t have a direct impact on aerosol dissemination.