SARS-CoV-2 could evolve into new variants that may evade existing vaccines Naeblys/Alamy
An inhalable powder that coats the airways with a protective gel prevents coronavirus infections in mice and monkeys. It may be effective against any SARS-CoV-2 variant, including future ones that could evolve to evade existing vaccines.
Vaccines have been critical for containing the covid-19 pandemic, but their efficacy may wane as the coronavirus that causes it mutates. Ke Cheng at North Carolina State University and his colleagues wondered if they could create a barrier for the airways that temporarily …
