The key objectives of epidemiology can be summarized into three main categories:
Descriptive Epidemiology: This involves characterizing the distribution of diseases within a population. It answers questions such as who is affected, where the disease is occurring, and when it is happening. Analytical Epidemiology: This aspect focuses on identifying the causes or determinants of health-related events. It seeks to answer why and how diseases occur by studying associations between risk factors and disease outcomes. Interventional Epidemiology: This involves evaluating and implementing public health interventions to control or prevent diseases. It studies the effectiveness of interventions, such as vaccines or lifestyle changes, in reducing disease incidence and prevalence.
