Health Experts Warily Eye XBB.1.5, the Latest Omicron Subvariant A young version of the coronavirus makes up one-quarter of Covid cases across the United States and over 70 percent of new cases in the Northeast.
Covid, Flu and RSV Are Increasing Hospitalizations in NYC New Yorkers are falling ill with new variants of Covid and old illnesses like flu and RSV that masking and other precautions once held at bay.