https://www.theguardian.com/science...-help-researchers-track-spread-of-coronavirus
“The immediate thing is we will get known clusters of disease at different levels of severity all over the country and we will know what is going on,” he said.
“people are reporting non-persistent cough, or feeling unwell or a strange feeling of a lack of taste, or chest tightness that aren’t in the classical list but if we see it across the country in clusters we know they are probably real [symptoms of Covid-19],” said Tim Spector, a professor of genetic epidemiology at King’s College London, who is leading the work.
“Speaking to clinicians in the hospital, especially in the elderly you get very different symptoms to the young so this idea there is only two types of symptoms – fever and long-term cough – is wrong. It can occur in many different ways,” he added
Spector said the app would shed light both on symptoms and the geographical spread of the disease.
“The immediate thing is we will get known clusters of disease at different levels of severity all over the country and we will know what is going on,” he said.