I never understand it when this argument is made. It assumes that there aren't entities out there making $0 on the common cold that would refuse to take the absolute fucking windfall that would be generated if such an immunization were to be brought to the market.

Like "oh, you know, we'd like to make this immunization and make billions of dollars ourselves but these OTHER guys are already making billions of dollars and we sure wouldn't want to step on their toes."

its pretty hard to vaccinate against the common cold, since coronavirus only represents like 15ish percent, the majority are all rhinoviruses there arnt any vaccines for those because theres too many strains(like 200+) to deal with, and also its so self-limiting its not worht it to produce anyway, in addition to trying to figure out which virus is causing the cold and which strain. also there a bunch of other viruses that causes colds, like entero,adeno, parainfluenza, RSV,,,etc.