One, a vaccine candidate is not likely to be viable for a year. You have to test it. Then you need to make a boat load of the stuff. Then you need to get it to everyone. That is a year at the earliest.
Two, St. Patrick’s day parade will not pass on the virus. True revilers will have inoculated themselves to the point that no virus could survive in their bodies. “I Love You Man!”
RE: True revilers will have inoculated themselves to the point that no virus could survive in their bodies
How does this “inoculation” (note the quotes) work?