Is a universal coronavirus vaccine on the horizon?

AndronETalksNews
National Geographic
Every time a new variant comes along, COVID-19 vaccine and drug makers reassess their “recipes” to see if they work against an evolving virus—like Omicron, which has spread quickly around the globe in little more than a month.
Since the start of the pandemic in December 2019, the SARS-CoV-2 coronavirus that causes COVID-19 has mutated multiple times, giving rise to different variants. Because most vaccines were designed to recognize the original SARS-CoV-2 spike protein, or at least parts of it, more mutated variants like Omicron are better at escaping protection offered by the vaccines, although they still prevent severe disease.
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