Burkholderia pseudomallei appears to be endemic to Gulf Coast soil now, too. We are in for a fun microbial century.

Yes, you have to train the dog to recognize the cat as an enemy, so you take a rat and put some cat smell on it, then let it loose in the house. The dog will catch the rat and associate that smell with an intruder. Now the dog will recognize both cats and rats as threats in the future and chase both of them.

We already vaccinate for plenty of things that aren't viruses. As long as you can train the human immune system to recognize and destroy it, you can vaccinate against it.

I'm not sure about that anymore. I'm seeing local anti-vaxxers refusing to give their dogs rabies shots now. This is what human stupidity has wrought.

There is no difference. They both only prevent the severity of infection and the degree to which disease develops. Vaccines aren't magical virus shields.

Covid has a super short incubation period, so the immune response isn't fast enough to stop symptomatic cold-like disease. But it does stop it from progressing into severe disease.

That's exactly what the polio vaccine does, but in the intestines. It stops it from progressing to the nervous system.