Manning and Fink (2020) report that country level mean 2D:4D is associated with COVID-19 case fatality ratio and percentage of male deaths. We discuss here a range of methodological and statistical issues with Manning and Fink's work that offer a different interpretation of their claims.
Jones, A. L., Satchell, L., Jaeger, B., & Schild, C. (Accepted/In press). (Mis-)understanding COVID-19 and digit ratio: Methodological and statistical issues in Manning and Fink (2020). Early Human Development.