The Amsterdam Institute for Advanced labour Studies–Hugo Sinzheimer institute (AIAS-HSI) coordinates a 2-year project COMET: COvid-19 crisis, MEntal health of healthcare workers and Trade unions actions. AIAS-HSI is in charge of the research part. The European Public Service Union (EPSU) and the European Psychiatric Association (EPA) provides support and is in charge of the dissemination of the research findings.