Scientists who make observations, survey people, and use other methods to investigate the extent of a public health problem are known as

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Epidemiologists are scientists who study the patterns, causes, and effects of health and disease conditions in defined populations. They use observations and collected data to investigate the extent of a public health problem. Entomologists study insects, incidence researchers study the occurrence of a particular health problem, and etiologists study the causes of diseases.

Scientists Who Make Observations, Survey People, and Use Other Methods