Inhaled Covid vaccines stop infection in its tracks in monkey trials
nature.com
nature.com
https://medicalcountermeasures.gov/nextgen/
Goes to show that if you align incentives, remarkable things can happen.
I speculate the majority of people who rejected Covid shots didn't do so because of the needle.
Then, by the time it looked like it was proven safe, it didn’t look very effective (in terms of possible benefit to my demographic)