NYC COVID cases up 250% in 2 months — and this variant's harder to duck GothamistCOVID-19 can surge throughout the year | NCIRD CDCFLiRT and LB.1 are the latest covid variants. Here’s what to know. The Washington PostCovid Symptoms and Testing: What to Know About LB.1 and Other FLiRT Variants The New York TimesCOVID-19 rising with summer emergency room visits and deaths USA TODAY