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.
Pathologists are physicians who study and diagnose disease. They work primarily in community hospitals, university medical centers and reference laboratories, although some also work in private industry.A relatively small number become coroners or medical examiners. pathologist interprets the results of these tests to determine if a disease is present and how serious or advanced it might be. In addition to laboratory examinations, some pathologists perform autopsies, or post mortems, which can contribute valuable information about the cause of death and other medical conditions.