Month: July 2020

What’s your blood type? The first report of a genome wide association study of Covid-19 severity on approximately 4000 patients and controls conducted in Spain and Italy identifies a locus on the 3rd chromosome that spans 6 potential genes for which polymorphisms appear to drive severe disease. Once the culprit gene is determined, this may help us think about drug targets. Reassuringly the study also recovers the correlation of severity with blood group that has empirically been noted in the past (on chromosome 9 although the signal is not as