Melody Schreiber

Until we have solid data on who needs them and how often, booster shots are going to be tough to distinguish from vaccine hoarding.

At long last, the White House is acknowledging that America can’t afford to respect personal choices in a pandemic.

Hurricane Ida, wildfire evacuations, and Orlando’s oxygen shortage all show that we need policy solutions to address multiple crises at once.

There are structural reasons people are swayed by anti-vaccine propaganda. Sneering at the unvaccinated won't solve them.

The next six months of this pandemic may look dispiriting. But that doesn’t mean we’re doomed.

The delta variant is dangerous. A third vaccine dose could be helpful for those with weaker immune systems, but giving third doses to healthy people would be wildly counterproductive.

Experts want to know why the agency approved a questionable Alzheimer’s drug but has withheld full approval from Covid vaccines.

Vaccinate. Do it quickly.

New models suggest that if vaccination rates only reach 68 percent and people refuse to wear masks, this autumn could be dangerous—particularly given the spread of the highly infectious delta variant.

Yes, getting 70 percent of all Americans vaccinated is a worthy goal. But what matters even more is that enough people in enough places are vaccinated.

Letting people copy Covid vaccines without being sued is good. Helping them do it is better.

India’s severe outbreak shows why the world needs early warning systems for variants that could evade vaccines.

To overcome hesitancy and reach herd immunity, we may have to treat vaccination like a political campaign.

The evidence is still very patchy that the vaccine increases blood clot risk. But even if it does: So does the birth control pill.

According to a new study, the Amazon is no longer acting as a net carbon sink.

Vaccine distribution is accelerating in the U.S. There are still several ways we could screw this up.

The Covid-19 vaccines are extremely safe and effective, but many people are still hesitant to take one. Here’s how to persuade them.

Certain states have had much smoother, faster vaccinations than others—but it’s not because they’re prioritizing speed over equity.

The president could use the Defense Production Act much more aggressively to fight the development of new Covid-19 variants.

The furor around D.C.’s vaccine prioritization shows how hard it is to get this vaccine to those who need it most.