Androgenetic alopecia in women and men is not related to COVID-19 infection severity: A prospective cohort study of hospitalized COVID-19 patients.

The ongoing outbreak of COVID-19 has posed significant threats to international health. The first biologic step of potential infectivity of COVID-19 is the priming of the spike proteins by transmembrane protease, serine 2 (TMPRSS2). TMPRSS2 cleave angiotensin converting enzyme 2 (ACE2) for augmented viral entry and thus is regarded as essential for viral spread and pathogenesis in the infected hosts1, 2 .