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Evidence-based explanations of the coronavirus crisis, from how it started to how it might end to how to protect yourself and others.

What you need to know about the omicron variant

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Prices for food and gas are rising sharply. Is health care next?

How Puerto Rico became the most vaccinated place in America

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Making sense of the recent Covid-19 spike

Inflation isn’t just a US thing

Some vaccinated people have gotten Covid-19. That’s no reason to panic.

They lost parents to Covid-19. Are we abandoning them?

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9 charts to be thankful for this Thanksgiving

Travelers stand with their luggage in an airport terminal in Johannesburg, South Africa, on November 27, 2021.

Coronavirus explainers

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At-home Covid-19 tests are getting better. Experts say: Stock up for winter.

Two confusing questions about Covid-19 boosters, answered

“We are going to make you beg for mercy”

One of the billionaire scientists behind the Pfizer/BioNTech vaccine on what’s next

The big questions about Covid-19 booster shots

Are we turning the corner on Covid-19 treatments?

The lawsuits attacking Biden’s workplace vaccine mandate, explained

Why are rich countries still monopolizing Covid-19 vaccines?

Why the US nursing crisis is getting worse

The case for mandating Covid-19 vaccines for kids

Covid-19 vaccines for young kids are a big step toward a new normal

Service workers are getting paid more than ever. It’s not enough.

The US is about to make the same pandemic preparedness mistake — again

Playdates are ruining all the fun

Is ignoring the pandemic a crime against humanity?

Supply chain chaos and inflation could last into 2022

Pfizer’s clinical data puts the US one step closer to a Covid-19 vaccine for younger kids

Who should get a Covid-19 booster shot right now?

How you’ll know when Covid-19 has gone from “pandemic” to “endemic”

The future of vaccine mandates will likely come down to Brett Kavanaugh and Amy Coney Barrett

How New York overengineered its million-dollar vaccine passport

When can we start enjoying nightlife again? 

Why Merck’s Covid-19 pill molnupiravir could be so important

The best- and worst-case scenarios for Covid-19 this winter

Supply chain havoc is getting worse — just in time for holiday shopping

How the risk of Covid-19 for kids compares to other dangers

Why people who don’t trust vaccines embrace unproven drugs

The new guidelines for Covid-19 booster shots, explained

Does everybody need a booster shot?

Florida’s mysterious Covid-19 surge

A simple solution to endless school quarantines

It’s time to stop describing lifesaving health care as “elective”

The summer that wasn’t

The dubious rise of ivermectin as a Covid-19 treatment, explained

The pandemic has created a nation of insomniacs

Americans are dying because no hospital will take them

CDC study: Unvaccinated people are 11 times more likely to die of Covid-19

Are Biden’s new vaccine requirements legal?

Silicon Valley wants you to know Theranos isn’t Silicon Valley

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