FILE PHOTO: Nurses react as they treat a COVID-19 patient in the ICU (Intensive Care Unit) at Milton Keynes University Hospital, amid the spread of the coronavirus disease (COVID-19) pandemic, Milton Keynes, Britain, January 20, 2021. REUTERS/Toby MelvilleLONDON (Reuters) – Britain reported the highest number of new COVID cases since April 1 on Monday, with