I'm don't ordinarily lean towards conspiracy theories, but its pretty easy to imagine the cold-medicine companies trying to think of ways of hindering any cold-

I'm don't ordinarily lean towards conspiracy theories, but its pretty easy to imagine the cold-medicine companies trying to think of ways of hindering any cold-vaccine development, in the same way that they actively seem to encourage people using their cold medicine to get back to work right away to spread that virus around some more. I'd love a world with less cold viruses running rampant. When I started working from home full-time (years and years ago) I immediately noticed that the number of colds per year I had went from something like 10-12 to 1 or less. And the colds I get now are usually correlated with a visit to my grandkids...