What do they vax them for exactly? We have around on any given day 5 to 10 stray cats we feed at our farm. Not a single one vaxxed. The latest addition has half a tail and is very shy but getting there, nearly stroked it yesterday. No idea where they all came from.
One cat came 6 years ago and lived outside, turned up from one farm over, dropped 3 kittens and left after a year, that was how it started, the rest just came over the years.