Support WBURU.S. races to detect and track omicron, hampered by an unwieldy surveillance systemRob SteinCarmel WrothNovember 30, 2021 ShareA registered nurse stirs a nasal swab in testing solution after administering a COVID-19 test in Los Angeles, Calif. Increased testing could help in efforts to detect and track new variants like omicron. (Mario Tama/Getty Images)
