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Epidemiological (and other observational) studies typically highlight associations between exposures and outcomes, rather than causation. While some consider this a limitation of observational research, epidemiological models of causation (e.g. Bradford Hill criteria) [7] contend that an entire body of evidence is needed before determining if an association is truly causal. [8]
Epidemiology has its limits at the point where an inference is made that the relationship between an agent and a disease is causal (general causation) and where the magnitude of excess risk attributed to the agent has been determined; that is, epidemiology addresses whether an agent can cause disease, not whether an agent did cause a specific ...
The Plague of Athens (c. 1652 –1654) by Michiel Sweerts, illustrating the devastating epidemic that struck Athens in 430 BC, as described by the historian Thucydides. The United States Centers for Disease Control and Prevention defines epidemic broadly: "Epidemic refers to an increase, often sudden, in the number of cases of a disease above what is normally expected in that population in ...
Common issues that are the subject of public health interventions include obesity, [3] drug, tobacco, and alcohol use, [4] and the spread of infectious disease, e.g. HIV. [5] A policy may meet the criteria of a public health intervention if it prevents disease on both the individual and community level and has a positive impact on public health ...
Pandemic prevention is the organization and management of preventive measures against pandemics. Those include measures to reduce causes of new infectious diseases and measures to prevent outbreaks and epidemics from becoming pandemics. It is not to be mistaken for pandemic preparedness or mitigation (e.g. against COVID-19) which largely seek to mitigate the magnitude of negative effects of ...
Environmental epidemiology research can inform government policy change, risk management activities, and development of environmental standards. Vulnerability is the summation of all risk and protective factors that ultimately determine whether an individual or subpopulation experiences adverse health outcomes when an exposure to an ...
Promotion of health, which is the encouragement and defense of the population's health through actions that fall upon individuals of the community, like, for example, anti-tobacco campaigns for preventing lung cancer and other illnesses associated with tobacco. Specific protection of health, including environmental safety and food safety.
Although health research is often organized by disease categories or organ systems, theoretical development in social epidemiology is typically organized around factors that influence health (i.e., health determinants rather than health outcomes). Many social factors are thought to be relevant for a wide range of health domains.