The UK's official coronavirus symptoms list is too short, doctors have warned. In Britain, the NHS online service lists three Covid-19 symptoms - a high temperature, a cough or breathlessness.
If the user responds saying they have none of them, they are told: "You're unlikely to have coronavirus ". But in other countries, online tools appear to be more thorough.
In France, everyone is asked 23 questions to determine whether or not they have coronavirus. They include whether the person has a loss of taste and smell, fatigue, or aches and pains.
Anyone who responds yes to the questions are then told to "monitor your condition carefully" and limit contact with other people.