These early signs made omicron different from previous Covid variants, experts say

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Nov 30, 2021 These early signs made omicron different from previous Covid variants, experts say Even before it was given the "omicron" designation, the latest coronavirus variant gained attention among researchers for the dozens of mutations to its spike proteins that made it different from those of the virus that first emerged in late 2019. These early signs, experts say, made it worthy of swift action around the world. Read More Follow Us Get the NBC News Mobile App Check out all NBC News newsletters here. 30 Rockefeller Plaza New York, NY 10112 View in browser | Unsubscribe | Contact | Privacy