Which statement best describes Salmonella enteritidis vaccination policy under the FDA Egg Rule?

• A. Vaccination is mandatory in all cases
• B. Vaccination is recommended but not mandatory
• C. Vaccination is prohibited
• D. Vaccination is required only for export eggs

Answer: (B)

The policy centers on preventing Salmonella enteritidis in shell eggs by requiring a comprehensive SE prevention plan for large egg producers. Vaccination of laying hens is one option that can be used to meet the plan’s goals, but it is not required in every case. Producers may instead implement other prevention measures—such as enhanced biosecurity, sanitation, pest control, controlled access to facilities, and proper refrigeration of eggs—to reduce SE risk. Therefore, stating that vaccination is recommended but not mandatory best reflects the rule: it is a supported tool within the prevention plan, not a universal mandate. The other options are not accurate because the rule does not make vaccination mandatory in all cases, it is not prohibited, and the rule applies to eggs produced for interstate commerce rather than being limited only to export eggs.