How vaccine makers are adapting to mutations
Dec 17, 2021
3 minutes
By Julia Kollewe
The speed at which scientists worked to develop the first Covid jabs was unprecedented. Just nine months after the UK went into lockdown, 90-year-old Margaret Keenan officially became the first person in the world outside a trial to receive the Pfizer/BioNTech vaccine. But the virus is mutating, and the emergence of the Omicron variant last month is already focusing attention on the next generation of jabs.
So what do we know about the new Covid-19 vaccines? One change is with delivery mechanisms, such as San Francisco firm Vaxart’s vaccine-ina-pill,
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