[Deathserpent2]

I can't see them being used to a capacity we would see a massive drop off if people can't go out and get vaccinated at a reasonable rate. Like how often would you have to take it - my understanding with other nasal sprays (not nasal vaccines) is that their effectiveness lasts for about 8 hours. The ongoing clinical trial at https://clinicaltrials.gov/ct2/show/NCT04858620 says they are applying every six hours, and I can't imagine the population doing that.