C.D.C. Internal Report Calls Delta Variant as Contagious as Chickenpox
Infections in vaccinated Americans are rare, compared with those in unvaccinated people, the document said. But when they occur, vaccinated people may spread the virus just as easily.
New Study Finds Covid Spikes After N.F.L. Games With Fans
As the N.F.L. makes plans to return to stadiums at full capacity this season, researchers published findings that “fan attendance at N.F.L. games led to episodic spikes” in the number of Covid-19 cases.
Another US Covid-19 surge may look different, experts say, particularly for younger people. Here's how
Experts say Covid-19 vaccinations in the United States are going extremely well -- but more people need to be protected and the country may be at the start of another surge.