Vaccinate. Do it quickly.

Last week, Israel, with one of the highest Covid-19 vaccination rates in the world, reported something troubling: The so-called delta variant was driving another Covid-19 spike in the country—and half of the cases were among fully vaccinated people.

The delta variant is what experts have long feared: It’s more contagious, bringing a wave of hospitalizations and deaths for unvaccinated people wherever it goes, and it shows the early signs of being able to evade vaccines. In early June, one vaccine scientist dubbed delta “the variant of the future” because it signals, far sooner than experts hoped, the rise of more worrying strains. Read more at The New Republic.