During an outbreak, which action reduces transmission?

During an outbreak, which action reduces transmission?

• A. Increase crowding of animals.
• B. Enhanced hygiene and management (removing carcasses, aborted fetuses, dead newborns, and placentas promptly)
• C. Stop vaccination campaigns.
• D. Ignore farm-level hygiene.

Answer: (B)

Reducing transmission hinges on cutting environmental sources of infection and limiting opportunities for contact. Promptly removing carcasses, aborted materials, dead newborns, and placentas eliminates reservoirs where pathogens can survive and spread, lowers contamination of surfaces and soil, and reduces exposure risk to other animals and people. Cleanliness, proper disposal, and routine sanitation disrupt the infection cycle and help protect susceptible animals from acquiring the disease. The other actions would tend to increase spread or weaken defenses: crowding animals raises contact rates; halting vaccination campaigns lowers immunity in the population; and ignoring farm hygiene allows pathogens to persist and circulate.

Reducing transmission hinges on cutting environmental sources of infection and limiting opportunities for contact. Promptly removing carcasses, aborted materials, dead newborns, and placentas eliminates reservoirs where pathogens can survive and spread, lowers contamination of surfaces and soil, and reduces exposure risk to other animals and people. Cleanliness, proper disposal, and routine sanitation disrupt the infection cycle and help protect susceptible animals from acquiring the disease.

The other actions would tend to increase spread or weaken defenses: crowding animals raises contact rates; halting vaccination campaigns lowers immunity in the population; and ignoring farm hygiene allows pathogens to persist and circulate.