You don't even have to wipeout humanity, look at the financial destruction the current virus has done and consider how non-lethal it is compared to many others.

You don't even have to wipeout humanity, look at the financial destruction the current virus has done and consider how non-lethal it is compared to many others. For that matter, every tinpot dictator and would be terrorist in the world could easily get their hands on this virus, store it for a few years until immunity has worn off and we don't have huge stockpiles of a vaccine, then purposefully release it in a dozen major cities at once, it would spread for a couple of weeks before being noticed.