Coronavirus: How do you look after someone with Covid-19?
If you have a new continuous cough, a high temperature above 37.8C or a loss of smell or taste, you need to self-isolate at home for at least ten days, according to the National Health Service.
These are the most common symptoms of coronavirus, but you'll need to order a government test to be sure.
If you live with someone who has symptoms, you'll need to take extra steps to look after them safely, because Covid-19 is so contagious.
And it will require the help of everyone in that household.
The BBC's Laura Foster explains how you can look after someone with coronavirus in their own home.
If their symptoms get worse or more serious, then you should seek medical attention.