Which of the following is NOT typically included in CDC infection control measures?

• A. Hand washing
• B. Quarantine of exposed individuals
• C. Prophylaxis of exposed individuals
• D. Avoidance of vaccination

Answer: (D)

Infection control aims to interrupt transmission by acting on how diseases spread. Hand washing is the cornerstone, because cleansing hands breaks the most common route of transmission. Quarantine of exposed individuals helps prevent potential spread from people who may become contagious but are not yet known to be infectious. Prophylaxis of exposed individuals, such as post-exposure prophylaxis, reduces the likelihood that an exposure will develop into disease and help curb onward transmission. Vaccination, while a powerful prevention tool at the population level, is not an infection-control maneuver performed to manage transmission in the immediate care setting; it’s a broader public health strategy. Therefore, avoiding vaccination is not aligned with CDC infection-control practices.