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.
Virologists usually supervise a team of researchers, especially in university settings or in larger private lab facilities. Biological technologists, technicians and lab assistants are among the common scientific roles held by people managed by virologists.