On average it takes five to six days from when someone is infected with the virus for symptoms to show, but it can take up to 14 days.
WHO said: "Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.
"The Covid-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes, so it’s important that you also practice respiratory etiquette (for example, by coughing into a flexed elbow).".
The NHS says you should not go to a GP surgery, hospital or pharmacy if you have symptoms, as you could spread the virus to others
After first noticing symptoms, you have four days to book a drive-through or walk-through test at a test site or order a home test kit
On Day 5, it's too late to order a home test but you can still book a test at a test site