Omicron has quickly overtaken delta as Miami’s dominant COVID-19 variant

Front page for Dec. 21, 2021: Testing boosted as variant blamed for 90% of N.Y. cases. Schools’ tracking system breaks down, staffing plunges. Long line for COVID tests snakes through Times Square on Monday as omicron variant is linked to 90% of cases in the New York-area virus surge. (New York Daily News)