What are the factors of epidemiology?
By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).
What are the three major components of epidemiology?
The epidemiologic triangle is made up of three parts: agent, host and environment.
How can epidemiology influence policy?
It can offer a multitude of benefits to public health practitioners and policy experts, including 1) assessment of the distribution of the problem and need for intervention; 2) course-correcting information — interventions that may not fit or may not be effective in the local circumstances of their application, 3) …
What are three factors that influence the spread of emerging diseases?
Several factors contribute to the emergence and re-emergence of infectious diseases, but most can be linked with the increasing number of people living and moving on earth: rapid and intense international travel; overcrowding in cities with poor sanitation; changes in handling and processing of large quantities of food …
What are the roles of epidemiology in public health?
Epidemiology is the study of disease in populations. Epidemiological methods are used for disease surveillance to identify which hazards are the most important. Epidemiological studies are also used to identify risk factors which may represent critical control points in the food production system.
What roles can an epidemiologist have in public policy?
Alone, epidemiologists are unlikely to be effective in creating policy, but as members of teams they may have diverse roles; particularly in identifying and quantifying issues, monitoring and evaluating outcomes of programs and policies.
Which of the following factors can influence the emergence or re-emergence of infectious diseases?
Population demographics are altered by population growth, migration, and differential mortality; the unique interaction of these factors has contributed to the emergence and re-emergence of infectious diseases.