IL6 and infection: Early COVID-19 mortality data from Italy and the United Kingdom were compared to previously published mean IL-6 levels from these nations, as well as the United States, to see if IL-6 levels before infection might predict the outcome. There was a very significant connection (r = 0.9883; p = 0.00025) between age-stratified death rates and IL-6 levels in previously published data on healthy individuals.