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NPR analyzed data by SafeGraph to determine the percentage of people who stayed at their "home" location for Thanksgiving as well as the percentage who traveled 31 miles or more.

The Pfizer-BioNTech COVID-19 vaccine was developed fast. But a leading vaccine expert says it's important for consumers to know the companies "haven't cut corners" in the clinical science.

As state health officials make plans for a vaccine, many questions remain unanswered. In Pennsylvania, the top health official says she does not know how many doses will be made available initially.

Amid criticism of the government's recent handling of the pandemic, the country is seeing more cases than at any other time in the past nine months.

Most schooling has been offered online this semester. Teachers are working hard to improve that experience, but many students are still left behind.

Here's how to self-isolate, what the new quarantine guidance means for your household, and which symptoms signal you need immediate emergency care.

We take stock of where we are in the pandemic in terms of infections and fatalities.

State officials announced on Saturday that they will bring back sweeping new restrictions as coronavirus cases continue to climb and ICU capacity dwindles.

The pandemic put a spotlight on health care workers and inspired many to pursue a career in medicine. The record number of applicants comes as the U.S. faces a projected shortage of physicians.

New social distancing measures are due to take effect Tuesday evening. The government warns of an impending crisis, brought on by a third wave of infections.