mid-15c., from Middle French attestation and directly from Latin attestationem (nominative attestatio) an attesting, testimony, noun of action from past participle stem of attestari to prove, confirm (see attest).
Work Environment. Epidemiologists generally work in clean, well-lit offices and laboratories. In addition to hospitals, epidemiologists work in colleges and universities, schools of public health, medical schools, and research and development services firms.
Pharmaco-epidemiology: Epidemiologists working in the area of pharmacoepidemiology apply epidemiologic reasoning, methods, and knowledge to the study of the uses and effects, beneficial and harmful, of prescription and over the counter drugs, biologics, vaccines, and medical devices in human populations.