COVID-19 latest: Omicron variant, herd immunity, worldwide vaccine access

From PBS NewsHour.

In order to expand testing access and help stop the spread of the omicron variant, the Biden administration announced this week that it would begin distributing millions of COVID-19 tests and masks to Americans for free. Infectious disease epidemiologist Jessica Malaty Rivera joins for more on the rollout of this plan and its potential impact, the latest public health recommendations, and what the future of COVID-19 may hold.

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