New Playbook for Covid-19 Protection Emerges After Year of Study, Missteps - WSJ

New Playbook for Covid-19 Protection Emerges After Year of Study, Missteps - WSJ: Mask-wearing, good air flow and frequent rapid tests are more important than surface cleaning, temperature checks and plexiglass. Scientists say America needs to double down on protection protocols as potentially more-contagious coronavirus variants take hold and vaccines are slow to roll out.