epidemiologist

This term refers to a specialized medical professional whose focus is on population-level health rather than individual patient care. While a physician treats a single person, an epidemiologist analyzes data to identify trends and prevent the spread of diseases across entire communities or regions.

In professional and academic contexts, the term carries a high degree of formality and implies advanced training in statistics and public health. It is frequently used in news reports and government briefings during health crises to denote the authoritative source of disease-tracking data.