The American Veterinary Medical Association said symptoms to watch for include a staggering gait, the inability to retract claws, extreme sensitivity to touch, tremors, and seizures. The illness usually lasts for a few days to a few weeks, but can also linger for more than a year.
I hope it doesn’t come to Japan. We have lots of cats running around the area that I moved to. I hope to start some trap+neuter/spay at some point, but can’t afford it now. One of the cats will get close and hang out, but will not be touched. They’re all varying shades of feral. On the plus side, they do help keep our rodent populations low (as do the snakes to a lesser degree (though they prefer toads), but I prefer non-venemous farm helpers