Between August and December of 2021, 75,000 Americans aged 40–64 died of Covid-19. The vast majority were unvaccinated.

Omicron poses a serious threat, but we’re not back to square one

A lot of speculation about the new variant is not super helpful

Three CDC studies show the benefits of masks and vaccination in reducing kids’ risk of Covid infection, hospitalization and death

We need to maximize control of the virus while minimizing harm

Why the pandemic has hit low-income places so hard

Covid restrictions may feel permanent. Denmark’s experience shows they don’t need to be.

Contrarian viewpoints on Covid-19 policy in mainstream opinion journalism risk provoking dire consequences

Repeated studies reveal Covid antibodies in the breastmilk of people who have been vaccinated

The Covid-19 vaccines work. So why are we planning to give fully vaccinated people a third dose?

To boost or not to boost, that is the question (+ many others)

Whether it becomes more or less deadly is the big question now

New trial results find no statistically significant effect

Fighting Covid taught me more than reporting on it ever could

Answers to key questions about this even more contagious coronavirus

Fully vaccinated people aren’t likely to get super sick from Delta, but they can probably get mildly sick and pass it on to others

Will circulating variants of Covid-19 “boost” immunity in vaccinated populations?

If you’re fully vaccinated, there’s no indication you need one yet. But many could urgently use that dose — here’s why.

It’s been a long time since I saw a Covid patient in the ER and I couldn’t be happier

In the wake of COVID-19, we are all grieving. How can we come to terms with death — and what does it teach us about living?

The longer the wider world remains unvaccinated, the greater the risk that a devastating new variant will emerge

What the pandemic revealed about scientific publishing

The science of early memories gives some fascinating answers