LONDON – The U.K. is launching a £28 million (US$34.5 million) project to sequence the whole genome of every COVID-19 patient in the country treated in intensive care, with the aim of uncovering host genetic factors that lead some people to be more severely affected by the infection. The study will involve up to 20,000 people currently or previously treated in one of 170 intensive care units (ICUs), whose genomes will be compared to 15,000 people with a confirmed infection who had mild or moderate symptoms.