Which of the 10 essential services involves monitoring health?

• A. Monitor health
• B. Diagnose and investigate
• C. Enforce laws
• D. Link to/provide care

Answer: (A)

Monitoring health is about ongoing surveillance of a population’s health status to identify and understand problems as they arise. It involves regularly collecting and analyzing data on indicators like disease incidence, mortality, vaccination coverage, risk factors, and health behaviors. By watching these trends over time, public health officials can spot emerging issues, measure how big a problem is, and decide where to focus interventions and resources. This is different from diagnosing and investigating, which targets specific events or outbreaks; enforcing laws, which is about regulatory actions to protect health and safety; and linking people to care, which is about connecting individuals to needed health services. For example, watching flu-like illness reports across a region or tracking vaccination rates helps reveal where action is needed and whether public health efforts are making a difference.