Cross-country evidence on the association between contact tracing and COVID-19 case fatality rates
Cross-country evidence on the association between contact tracing and COVID-19 case fatality rates
Abstract The coronavirus disease (COVID-19) outbreak has killed over a million people since its emergence in late 2019. However, there has been substantial variability in the policies and intensity of diagnostic efforts between countries. In this paper, we quantitatively evaluate the association between national contact tracing policies and case fatality …