epidemiology
🇺🇸
/ˌepɪˌdiːmiˈɑːlədʒi/
🇬🇧
/ˌepɪˌdiːmiˈɒlədʒi/
the study of how, when, and why diseases affect people in a population
Researchers in the field of epidemiology are working to understand the factors that contribute to the spread of the virus.