Participants will have to provide regular blood samples and nasal swabs every fortnight
University Hospitals Plymouth (UHP) is currently taking part in a country-wide urgent public health study.
It is to help understand whether healthcare workers who have antibodies to COVID-19 are protected against future infections of the virus.
Sarscov2 Immunity and Reinfection Evaluation (SIREN), aims to recruit 500 members of Trust staff - a number which it is fast approaching after just four weeks.
The study, funded by Public Health England (PHE) and supported by the National Institute of Health Research (NIHR), works by regularly testing the staff signed up, in order to reduce the risk of health care workers transmitting the virus to other staff and patients.
Having staff commit to the full 12 to 18 months of the trial is imperative to its success.
The commitment for participants involves regular blood samples and nasal swabs every fortnight, though it is anticipated that the frequency of testing will reduce to monthly as the trial progresses.