In December 2019, a new coronavirus appeared in Wuhan, China. It has since infected thousands across the globe, and the World Health Organization declared it a pandemic, which refers to how far it’s spread.

The new coronavirus causes a disease called COVID-19, with symptoms such as fever, cough, and difficulty breathing. It can be deadly, particularly in people over the age of 60 or with underlying health conditions.

We’ve rounded up our reporting on the virus, the illness it causes, things you can do to protect yourself, and the way the tech sector has been affected here.