SARS-CoV-2 Transmission From People Without COVID-19 Symptoms
IMPORTANCE Severeacuterespiratorysyndromecoronavirus2(SARS-CoV-2),theetiologyof coronavirus disease 2019 (COVID-19), is readily transmitted person to person. Optimal control of COVID-19 depends on directing resources and health messaging to mitigation efforts that are most likely to prevent transmission, but the relative importance of such measures has been disputed.
U.S. Officials Say Covid-19 Vaccination Effort Has Lagged
The distribution of vaccines in the United States has gotten off to a slower-than-expected start, federal health officials acknowledged in a news conference on Wednesday, though they also voiced confidence that the pace would accelerate in the coming weeks.