coronavirus.A study involving more than one million people in England revealed chills, a loss of appetite, headaches and muscle ache are four extra symptoms linked with Covid-19 as well as the well known ones such as a new persistent cough and a fever.The findings are based on swab tests and questionnaires collected between June 2020 and January 2021 as part of the Imperial College London-led React study.Professor Paul Elliott, director of the React programme at Imperial, said: “These new