Reposted by Horizon to horizon, nothing but mistakes ¯\_(ツ)_/¯
Yeah, the vaccines we have now don't keep you from catching it, just reduce the symptoms.
We need nasal vaccines for covid, because they build immune defenses directly in the nose and throat where the virus first enters and multiplies.
Something else interesting: med.stanford.edu/news/all-new...
med.stanford.edu
One vaccine may provide broad protection against many respiratory infections and allergens
Stanford Medicine researchers and their colleagues invented a new vaccine that protects mice from respiratory viruses, bacteria and allergens — the closest yet to a universal vaccine.