NEJM This Week — December 17, 2020
Featuring articles on SARS-CoV-2 transmission among Marine recruits, SARS-CoV-2 transmission on an aircraft carrier, an mRNA vaccine against Covid-19 in older adults, a phase 1 trial of an RNA-based Covid-19 vaccine, and the cardiomyocyte and the mighty mitochondrion; a review article on severe Covid-19; a case report of a boy with seizure and hypocalcemia; and Perspective articles on health coverage and care for transgender people, on rethinking sex designations on birth certificates, on being interviewed while Black, and on the caregiver.