Covid-19
Evidence-based explanations of the Covid-19 pandemic, including how it started, how it might end, and how to protect yourself and others.

Breakthrough infections are uncommon — which makes them all the more confusing for people who experience them.


But we can still make this pandemic school year better than the last.


All eyes are on Louisiana, which leads the country in new Covid-19 cases.


The US epidemic — and people’s risk from Covid-19 — has changed in this latest wave of cases.


He’s hoping the courts give it a little more time.


Here are the most important precautions your office should have in place if it wants you back.


The delta variant makes it clear: Vaccinating the world is in America’s best interests.

48 million people provide unpaid care to their loved ones in the US. Here’s how to help them.


No, it’s not launching another app.


An expert explains why vaccinated people should wear masks in some indoor settings.


Unvaccinated people still make up the vast majority of cases, hospitalizations, and deaths.

Who wins and who loses in the remote work revolution.


Only $3 billion of a $45 billion relief package has been distributed to renters.


Japan’s pandemic problems are bigger than the Olympics, experts say.

The virus will keep evolving. Here’s what scientists do and don’t know about the future of Covid-19.

You probably don’t know what HIPAA really means. Let’s fix that.


What the law says about vaccine mandates, explained.

Age, race, income, and, of course, politics.


Tech companies continue to be at the forefront of how employers respond to the pandemic.

Vaccines are the solution to Covid-19. Let’s make the most of them.


Public health crises require a dynamic government that makes quick decisions. GOP judges want to prevent that.


Some health officials now think a third shot could help older and immunocompromised people.


Why America can’t allow pandemic preparedness funding to fall prey to short-term thinking.


This year’s Olympics were always going to be a challenge. Now they’re a showcase for broader failures.


It’s good Hannity spoke out for vaccines. But Fox continues to be wildly irresponsible.


The pandemic isn’t over in the US — but it is changing.


Dr. Vivek Murthy considers social media misinformation to be a deadly public health threat.


Keep an eye on breakthrough Covid-19 cases, but remember that they’re expected.


Tennessee Republicans demonstrate how vaccine skepticism has escalated to outright hostility.


All your questions on the expanded child tax credit, answered.


Covid-19 outbreaks in ICE detention have made vaccinations more urgent.


Some schools can drop mask mandates — but not all of them.

Will you need a booster? Does it matter if you got Pfizer, Moderna, J&J, or another vaccine?
Another pandemic will come. Here’s what we can learn from Taiwan’s efforts to fight this one.


US health care is even further behind other wealthy nations.


The US’s partisan divides have led to unnecessary deaths.


The social amnesia of forgetting how to read people’s faces and gauge conversations is very, very real.


Brett Kavanaugh hands the smallest possible victory to millions of Americans facing eviction.

The delta variant has made Covid-19 more dangerous than ever for unvaccinated people.

Doctors need mental health support. Here’s why many aren’t getting it.