There was a rush to develop a vaccine for SARS 1 back in 2003. It was never developed in the end, not because it was scientifically difficult to do so, but because the virus just stopped killing people before the vaccine could be released. Basically the exact same thing is happening now. I do not own stock in Moderna or any of the other biotechs whose market caps are currently being inflated with vaccine revenue expectations. It'll be another six months minimum before they can bring anything to market, and by then we'll be past the election and people will no longer care about Wu Flu.