One of the best ways to introduce an article on the epidemiology of drug use and drug dependence is to ask some basic questions that epidemiologic studies can answer but laboratory and clinical studies cannot. Here are some examples: In the late 1990s...

Epidemiology is the study of the frequency, distribution, and determinants of disease in humans. Its aim is the prevention or effective control of disease. The term originated in the study of epidemics, rapidly spreading diseases that affect large...

Epidemiology is the study of the distribution of disease and its determinants in human populations. Epidemiology usually takes place in an applied public health context. It focuses on the occurrence of disease by time, place, and person and seeks to...

Epidemiology is the branch of medicine that deals with the investigation of the causes, distribution, and control of disease in the general population, rather than at the level of individual cases. Over the past 50 years there have been significant...

Epidemiology, the study of epidemics, is sometimes called the medical aspect of ecology because it is the study of diseases in animal populations, including humans. The epidemiologist is concerned with the interactions of organisms and their...

Throughout human history diseases have played an important role. The black death in Europe in the middle ages is one example, and more recent examples include the flu pandemic of 1918 and 1919 and diseases such as AIDS and various childhood diseases....

Epidemiology is a multidisciplinary enterprise which assesses the causes, natural history and treatment of disease. It originates from the study of epidemics of communicable diseases, but is now much more concerned with chronic disease and health care...

Epidemiology is a term that refers to the techniques and analysis methods that are used to pinpoint the source of an illness. As well, epidemiologists (those who conduct the epidemiological investigations) are concerned with the distribution of the...

Epidemiology is the study of the various factors that influence the occurrence, distribution, prevention, and control of disease, injury, and other health-related events in a defined human population. By the application of various analytical techniques...

Clinical microbiology is concerned with infectious microorganisms. Various bacteria, algae and fungi are capable of causing disease. Disease causing microorganisms have been present for millennia. Examples include anthrax, smallpox, bacterial...

Epidemiology and genetics are two distinct disciplines that converge into a new field of human science. Genetic epidemiology is a broad term used for the study of genetics and inheritance of disease. Genetic epidemiology is a science that deals with...

Epidemiologists are scientists that study the factors influencing the health status of populations. These populations may be defined by geography (such as the residents of a particular city), occupation (such as members of the armed forces), or any...

branch of medical science that studies the distribution of disease in human populations and the factors determining that distribution, chiefly by the use of statistics. Unlike other medical disciplines, epidemiology concerns itself with groups of...

Considerations that are used to evaluate the relative strength of associations detected in scientific studies. The criteria were developed by Sir Austin Bradford-Hill and are categorised in the following way: Strength the stronger an association the...

Study of disease distribution in populations. It focuses on groups rather than individuals and often takes a historical perspective. Descriptive epidemiology surveys a population to see what segments (e.g., age, sex, ethnic group, occupation) are...

Epidemiology The study of patterns and possible causes of diseases in humans. Epidemiologists study short-term outbreaks of disease, called epidemics, and long-term diseases such as cancer and heart disease. The challenge in epidemiology is to...

(from Greek, epi: among, demos: the people) Epidemiology is the study of, strictly speaking, epidemics (which are closely defined in terms of the numbers of individuals affected per head of population). In practice it is used to describe any study into...

Has been defined as ‘the study of the distribution and DETERMINANTS of health-related states or events in specified populations and the application of this study to control PUBLIC HEALTH’. The important elements are that epidemiology uses...

Public health detective work. The field of public health concerned with relationships among various factors and conditions which determine frequency and conditions of an infectious process, disease or physiological state in a human...

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Epidemiology is the study of factors affecting the health and illness of populations, and serves as the foundation and logic of interventions made in the interest of public health and preventive medicine. It is considered a cornerstone methodology of...