What if invisible unicorns are actually the transmission vector and they are also spreading it to mosquitos? Wow, posing useless hypotheticals is somewhat enjoyable. We must do this again sometime.
This seems hopelessly naive. "Invisible unicorns" might as well have been germs 200 years ago. But antibodies, horizontal gene transfer, is very much mainstream science. If you know the science. If you don't, I think you should not be judging utility of others suggestions. But hey, it's the internet, let's do it again sometime, indeed.