@themaikimo this is Covid; there is no finish line. You cannot cross the finish line in one piece if there will never be a finish line to cross.
@themaikimo the ability of coronavirus to adapt and reinfect make them very different from the three you name. Surviving polio or measles or smallpox was enough to provide you with lifetime protection. It appears that people will catch Covid over and over again.
@antares I have lived through multiple finish lines: polio, measles, smallpox ... A SARS-2 finish line is likely one day, too.