The BBC's health and science correspondent undergoes an experiment to find out how a cold home affects him.
Entries by BBC News - Health
That is according to UK data from 17,500 people this week who say they have Covid.
Key maps and charts explaining how the virus has spread around the world.
Surges of Covid are happening again around the world, driven by some new subvariants of Omicron.
Colourful gadgets and fruity flavours are popular, but what's really known about their health effects?
