View NPR's maps and graphics to see where COVID-19 is hitting hardest in the U.S., which state outbreaks are growing and which are leveling off.

The U.S. is engaged in a massive effort to vaccinate the bulk of its population against COVID-19. But some states are working faster than others. See how yours is faring.

The country has beat back the winter surge, and experts credit Americans' improved compliance with precautions like mask-wearing. But we could we still face a resurgence if we let up.

The Biden team wants to swiftly vaccinate people of color and others most vulnerable to COVID-19. But health centers are learning that speed and achieving racial equity don't always go hand in hand.

As the country faces another wrenching milestone, there are signs of hope that we may be beating back the virus. But a brighter future won't bring back precious lives lost.

Many patients suffering from long-term effects can no longer work and want the Social Security Administration to provide guidance on who qualifies for disability benefits.

Scientists say the pandemic will only end in the U.S. when we achieve what's called herd immunity. Play with our simulations to see how immunity can stop an outbreak in its tracks.

A community health center is now immunizing the local homeless population. But vaccination logistics, already complex, are compounded by the additional barriers in communication and transportation.

Black Americans are getting vaccinated at lower rates than whites. A new push to send vaccines to community health centers is intended to help quickly bridge that gap.

Guidance from the CDC on who should be prioritized to get the COVID-19 vaccine was meant to be flexible and inclusive. But "the attempt to have equity created more inequity," says one researcher.

COVID-19 vaccines appear to work against the new coronavirus strains, though scientists are warily watching a variant first seen in South Africa. Vaccines may need updates to keep pace with the virus.

The Biden administration is promising 61 million rapid at-home tests by the summer. But critics say that's too few and way too late.

With vaccine still scarce, and eligibility differing from place to place, some people have easier access to "extra" doses than others. Careful, ethicists warn. Going out of turn is a slippery slope.

A new model estimates how many new infections are missed by testing and how many people are actively shedding the virus. The numbers are staggering and lend urgency to the vaccine race.

Glitchy websites, jammed phone lines and long lines outside clinics are complicating the vaccine rollout. And older Americans and those without caregivers and computer skills are at a disadvantage.