Epidemiology and biostatistics are the two branches of science that deals with the study of etiological conditions of a particular disease or health condition and present statistics of the condition in a given population or given community.
Epidemiology is the science that studies the patterns, causes, and effects of health and disease conditions in defined populations. It is the cornerstone of public health, and shapes policy decisions and evidence-based practice by identifying risk factors for disease and targets for preventive healthcare.
Epidemiologists rely on other scientific disciplines like biology to better understand disease processes, statistics to make efficient use of the data and draw appropriate conclusions, social sciences to understand proximate and distal causes better, and engineering for exposure assessment.
Biostatistics (or biometry) is the application of statistics to a wide range of topics in biology.
Related Journals of Epidemiology and Biostatistics
National health statistics reports, National vital statistics reports, Vital and health statistics