
Long COVID lingers in Swiss healthcare workers four years after infection
A Swiss multicenter study of healthcare workers followed for up to four years after infection with ancestral SARS‑CoV‑2 found that up to 60% still reported at least one symptom four years later; fatigue, loss of smell/taste, and brain fog were most common, and while most symptoms waned over time, a substantial minority continued to experience long COVID, highlighting the need for long‑term clinical and occupational support.













