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COVID-19 vaccinations are at a critical juncture as companies test whether new approaches like combination shots or nasal drops can keep up with a mutating coronavirus—even though it’s not clear if changes are needed.
Updating the vaccine recipe to match the latest variants is risky, because the next mutant could be completely unrelated.
COVID-19 vaccinations are at a critical juncture as companies test whether new approaches like combination shots or nasal drops can keep up with a mutating coronavirus \u2014 even though it's not clear if changes are needed.
COVID-19 vaccinations are at a critical juncture as companies test whether new approaches like combination shots or nasal drops can keep up with a mutating
By Lauran Neergaard / AP Medical Writer Covid-19 vaccinations are at a critical juncture as companies test whether new approaches like combination shots or nasal drops can keep up with a mutating coronavirus—even though it’s not clear if changes are needed. Already there’s public confusion about who should get a…