There's good Covid-19 news, including a third vaccine's approval. But don't ease up on safety measures, Fauci warns

It's easy to get caught up in all the good news about the Covid-19 pandemic.
Vaccine advisers to the US Centers for Disease Control and Prevention unanimously voted Sunday to recommend the distribution of a third vaccine for Americans 18 and older: the one-dose Johnson & Johnson vaccine.
And for the first time since early November, fewer than 50,000 patients are hospitalized with Covid-19.
Along with that, there's been a decrease in new cases and deaths since the abysmal January surge.
Despite that progress, Dr. Anthony...