What best describes disease prevention?

The best description of disease prevention is centered on strategies that actively prevent the occurrence of disease or injury. This involves methods such as vaccinations, health education, lifestyle modifications, and screening programs designed to identify risks before they develop into serious health issues. The focus of disease prevention is to mitigate or eliminate the factors that lead to illness, thereby improving overall public health and reducing healthcare costs.

In the context of the other choices, while improving general fitness levels can contribute to overall health, it does not specifically encompass the broader spectrum of disease prevention strategies. Similarly, social support and addressing community health disparities are important aspects of health promotion and can indirectly influence health outcomes, but they are not direct strategies for preventing disease. Disease prevention specifically targets the early intervention and avoidance of health conditions before they arise.