In 2020, the World Health Organization came up with a system for naming coronavirus variants based on the Greek alphabet, but in recent weeks, subvariants such as BA.1, BA.2, and XD have gained notoriety. Writing for The Atlantic, Sarah Zhang explains the naming system for Covid-19 variants.
FDA on Thursday authorized the InspectIR Covid-19 Breathalyzer, the first test that uses breath samples to detect the coronavirus. According to experts, the development is promising—but the technology has its shortcomings.
People usually appreciate receiving constructive criticism, but few feel comfortable offering helpful feedback, Melinda Wenner Moyer writes for the New York Times. Here are four tips on how to overcome that reluctance.