KNTV NBC Nightly News With Lester Holt February 8, 2022 23:36:00
Omicron's subvariant ba.2 now accounts for nearly 4% of new cases in the u.s. >> even if the united states is highly vaccinated but other countries remain unvaccinated, that leads to variants that can accumulate, cause us to have surges. >> reporter: but tonight a turning point for the u.s. where cases are down 65%. several states announcing a plan to end mask mandates. among them california where effective aifd. though counties like los angeles and san say masks will still be required as they are on public transportation state-wide and in schools k-12. >> given the increase in population immu...
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