Blood test ‘could identify Covid-19 patients at greatest risk of severe illness’

UK researchers have identified a blood test that could help predict which Covid-19 patients are at greatest risk of becoming critically ill.
A new study by the University of Southampton has shown that testing for five cytokines, which are proteins that are released into the bloodstream following an infection, could help identify those who face life-threatening overstimulation of immune defences due to the disease.