The Centers for Disease Control and Prevention (CDC) reiterated on Wednesday that schools can safely reopen even if teachers are not vaccinated against COVID-19. Last week the CDC weighed into the ongoing debate over whether to reopen schools for in-person instruction, noting that schools that are currently welcoming students into classrooms with certain safety precautions in place have had only “scant transmission” of the novel coronavirus that causes COVID-19. The CDC team reviewed data from studies in the United States and abroad and found the experience in schools different from nursing homes and high-density work sites where rapid spread has...