Which of the following is an example of tertiary prevention?

The selected answer, which identifies a program for managing diabetes, represents a clear example of tertiary prevention in public health. Tertiary prevention involves interventions that reduce the impact of an ongoing illness or injury that has lasting effects. This type of prevention aims to help individuals manage their health condition, prevent further complications, and improve their quality of life after a disease has already been diagnosed.

In the case of diabetes management, programs typically include administering medications, monitoring blood glucose levels, and implementing lifestyle changes tailored to the individual's needs. This focus on managing an existing condition and preventing further health decline aligns directly with the goals of tertiary prevention.

Other options pertain to different levels of disease prevention. Campaigns to promote vaccination and education on lifestyle changes focus on preventing diseases before they occur, aligning more with primary prevention efforts. Screening tests for early disease detection are aimed at identifying health issues in asymptomatic individuals, which falls under secondary prevention. Each of these approaches plays a crucial role in public health but distinctly addresses different prevention strategies in relation to the disease's progression.