Notes from the Field: Early Evidence of the SARS-CoV-2 B.1.1.529 (Omicron) Variant in Community Wastewater - United States, November-December 2021. - Kirby AE; Welsh RM; Marsh ZA; Yu AT; Vugia DJ; Boehm AB; Wolfe MK; White BJ; Matzinger SR; Wheeler A; Bankers L; Andresen K; et al. (MMWR. Morbidity and mortality weekly report, 2022)