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Fully vaccinated Americans can now safely shed their masks and skip social distancing, the U.S. Centers for Disease Control and Prevention said this week, sparking a flurry of questions about how the new guidelines will be implemented at businesses, schools and other places where fully vaccinated and unvaccinated people mingle.
The country has managed to avoid a variant-fueled spike in coronavirus cases. Scientists say we were lucky.
India has stepped up its coronavirus vaccination drive amid a deadly second wave of infections. The country on Sunday breached the 100,000 daily caseload mark for the first time since the pandemic began.
United States coronavirus cases have increased again after hitting a low point late last month, and some of the states driving the upward trend have also been hit hardest by variants.
With several vaccines approved and more people receiving them, our eyes now turn to vaccine acceptance. Vaccines give us the ability to prevent severe disease and reduce transmission. What questions do people have about the vaccines and the systems administering them?
Epidemiologists in India say that there is only one likely explanation for the decrease in new cases: The virus is finding it harder to spread because a significant proportion of the population, at least in cities, already has been infected. The decline is not related to a lack of opportunities for transmission.