RIO DE JANEIRO, BRAZIL - Headache, sore throat and runny nose are the most common symptoms associated with the latest Covid-19 variant afflicting the UK. The data was collected by the Zoe Covid app as part of the disease symptoms study and suggests that the Delta variant first detected in India seems like a "severe cold."
According to Tim Spector, professor of genetic epidemiology at King's College London who is leading the study, many people . . .