
Get booster shots as soon as you can, health experts say, as Omicron's spread collides with the relentless Delta variant
CNN
Anyone sick of hearing about new variants -- or the possibility of new Covid-19 restrictions -- can help stop the cycle by getting vaccinated and boosted, doctors say.
Less than two weeks after Omicron was first identified by South African scientists, it's already become the dominant variant in that country and has been identified in at least 20 nations.
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