A Tsinghua University team has designed a vaccine to be administered directly into the nasal cavity, which helped to induce sustained and protective immune responses from SARS-CoV-2 virus variants ...

“We synthesized them and encapsulated them into a nano-vaccine that is needle-free and administered as a nasal spray,” Satchi-Fainaro said. The nano-vaccine proved effective against all major ...

And now, there’s growing interest in other nasal spray products … such as vaccines, and even life-saving medications. For years nasal sprays have helped people with allergies. Recently ...