Would I be fantasising here to think this might be broad spectrum corona virus vaccine????
like - one course gives protection from mutations and probably other completely different virus - as long as they are corona?????
if it is ---------- Covid 19 might have been a blessing in disguise
"The vaccines deliver messenger RNA, or mRNA, which is a genetic recipe for making the spikes that sit atop the coronavirus. Once injected, the body's immune system makes antibodies to the spikes. If a vaccinated person is later exposed to the coronavirus, those antibodies should stand at the ready to attack the virus."