As summer progresses, Covid cases are on the rise, driven by low immunity, travel, and the new XFG variant. Experts share how to stay safe and what symptoms to watch for.
The NB.1.8.1 variant of COVID-19 is gaining traction across the globe, leading to surges in hospitalizations and ER visits in China and Hong Kong. With its arrival in the U.S., experts warn of potential challenges ahead.
