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.
Epidemiologists are divided into 2 groups: research and clinical. Research epidemiologists perform extensive research to aid in the prevention and control of infectious diseases. Clinical epidemiologists work to stop or prevent infectious outbreaks and most often work in medical facilities.