How a Lab in Nebraska Is Tracking the Spread of Omicron The New York TimesThe Omicron variant is putting America's coronavirus sequencing efforts to the test CNNOmicron: We already have tests that spot signs of the variant Business InsiderUC San Diego Scientists Testing Sewage for Signs of Omicron Variant NBC 7 San DiegoScientists at UC San Diego searching for new omicron variant in wastewater KPBS Public MediaView Full Coverage on Google News