Which statement best describes the role of vaccination and medical surveillance in field preventive medicine?

• A. They are optional programs
• B. They are core controls to protect deployed personnel
• C. They are only for laboratory staff
• D. They are irrelevant in field

Answer: (B)

Vaccination and medical surveillance are essential, proactive measures in field preventive medicine that protect deployed personnel. Vaccination reduces the risk of illness and limits transmission within teams, which is crucial in austere field environments where medical resources are scarce and readiness is vital. Medical surveillance provides ongoing health monitoring—tracking immunization status, identifying adverse vaccine effects, and detecting early signs of outbreaks so that rapid, targeted actions can be taken. Together, they form foundational controls that keep individuals healthy and the mission on track, rather than being optional, lab-only, or irrelevant in the field.