In Tennessee, where the governor allows families to ignore school mask mandates, some parents are making excruciating calculations each morning about whether to send their children to school.

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.

In communities with growing caseloads, vaccinated and unvaccinated people should return to wearing masks indoors in public areas, health officials said.

To hear an audio spoken word version of this post, click here.   One of the favorite parts of my job is thinking about issues in ways other people often do not. That might include identifying where consensus may be wrong (Inflation, Urban Exodus, Insurrections) or market values responding differently than expected. Even for issues…Read More

With the adjustment for vaccination, the national death rate is roughly the same as it was two months ago, while the adjusted rates in several states show the pandemic is spreading as fast among the unvaccinated as it did during the winter surge.

Pfizer and AstraZeneca work together well in a two-dose vaccination schedule; so do three doses of AstraZeneca, researchers find in separate studies.

As COVID-19 surged, the social media company pointed users to all sorts of anti-vaccine and anti-mask groups

Trump himself has helped undercut the thing for which he seeks the most credit.

Will.i.am and Honeywell introduce the first connected mask. Think sneakers meet smartphones.

The B.1.1.7 variant, first identified in Britain, is now the source of most new coronavirus infections in the United States, the director of the Centers for Disease Control and Prevention said.