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Abstract, Merck Manual, 2021

Last full review/revision Feb 2021 | Content last modified Feb 2021

A comprehensive biosecurity program should represent a hierarchy of conceptual, structural, and procedural components directed at preventing infectious disease transmission within and across farms, companies, facilities, regions, countries, and continents. Avoidance or segregation is the most effective way to prevent disease transmission involved with animal ownership or production. But given that all movement of animals within or across groups/borders involves risk of contact, biosecurity measures are needed to reduce unavoidable risk.