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

Throw out the tedious calculus. It’s not that complicated. The simple answer to the question on everyone’s mind:

If you’re confused by the latest recommendations, you’re not alone

Hospitals across the country are seeing fewer sick kids; a pediatrician explores why

A closer look at what it really means and some common misconceptions

The J&J pause seems scary, but it helps rebuild the transparency and trust we need

There will be no dramatic end to the pandemic, but we can at least look for these four signs that it’s under control

How rural areas could affect our Covid-19 immunity

The pandemic isn’t over, even if we’re over it

An invisible virus exposes critical blind spots in science and society. But will we learn?