The SARS-CoV-2 coronavirus first appeared in China in 2019 and triggered the global COVID-19 pandemic in 2020. The articles below provide information about how this respiratory disease is transmitted, how it progresses and where you can find reliable information about it. This interactive 3D animation shows what happens within the body following infection.

To the 3D animation

Long COVID – long-term effects of COVID-19

Long COVID refers to health issues that persist or occur weeks or months after an acute COVID-19 infection. Common symptoms include a loss of stamina and fatigue.

COVID-19 (coronavirus disease 2019)

COVID-19 is caused by an infection with SARS‑CoV‑2. The disease may be mild or very severe. Vaccinations and medication help prevent people from developing a severe form.

COVID-19, cold, flu – symptoms at a glance

Learn about the typical symptoms of the three illnesses, what people can do if they experience any of these and how they can protect themselves against infection.