The Electronic Health History System (ESIS), developed and administered by UAB Varutis, collects official data of personnel working in individual health care institutions (ASPIS) using ESIS. Depending on THE SCOPE, data time coverage may vary, but data is updated daily. The dataset shall include THE ASPIS Jaris code, name and municipality, the division assigned to the employee, his/her pseudonymized personal number, his/her position and the reference date indicating the relevance of the existing data entry.