I studied medicine in Amsterdam, after which I started working as a resident not-in-training in a nursing home. Recently, I was accepted for a career path in wich I combine my residency as general practitioner with a PhD programme, which is possible due to a close collaboration between Amsterdam UMC and the PHARMO Institute. My PhD focuses on COVID-19 and its implications, particularly in persons with diabetes and older persons. In persons with diabetes, I will be looking at primary care use during the pandemic, risk factors for severe COVID-19, and the effectiveness and safety of COVID-19 vaccination in this population. For older persons, much is still unclear about which factors influence their prognosis or functional outcomes after infection with SARS-CoV-2. This is another focus of my studies.