Which of the following is an example of secondary level preventive care?

• A. Mass screening activities
• B. Education about housing
• C. Nutrition guidance
• D. Day care for Parkinson's

Answer: (A)

Secondary prevention focuses on early detection of disease in people who do not yet have symptoms, with the goal of catching illness at a stage where treatment can be more effective and progression can be slowed. Mass screening activities fit this model because they test large groups regardless of symptoms to identify conditions early, allowing prompt intervention. In contrast, education about housing aims to improve living conditions to prevent health problems but does not involve screening for disease. Nutrition guidance is about preventing disease through healthy choices, which is primary prevention. Day care for Parkinson's focuses on managing an established condition to maintain function and prevent complications, aligning with tertiary prevention rather than screening.