Nasal vaccines may stop Covid infections. Will we get them soon?

Nasal vaccines may stop Covid infections. Will we get them soon? Research on nasal vaccines is mostly in its early phases in the U.S., though many scientists believe this twist on vaccination could prove to be an effective way to block infections. NBC News

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It proved to be a success, bringing the first Covid vaccines to the market in about 9 months, an unheard-of time frame for a process that normally takes years or even decades. 

But that same kind of effort has not been given to developing the next generation of vaccines, which experts believe will provide even greater protection.

Nasal vaccines, in particular, may hold a lot of promise; many scientists consider such an approach to have the potential to prevent infections entirely...