https://www.scientificamerican.com/article/new-nasal-vaccines-offer-stronger-protection-from-covid-flu-and-more-no-needle-needed/
New nasal vaccines offer stronger protection from COVID, flu, and more—no needle needed |...
Feb 27, 2026 - Gentle nasal spray vaccines against COVID, the flu and RSV are coming. They may work better than shots in the arm
stronger protectioncovid flu