What a shame, RIP Matty. He was lucky to have someone who cared enough to help him.I'm sorry to say that Matty didn't make it.
He started off ok but then deteriorated with anaemia. It turned out that he also had calici, which complicated matters.
I'm consoling myself with the thought that he passed in comfort and in the company of caring hands, and not alone and freezing on the street, like his brother.
Maybe these things happen for a reason. A stray black and white kitten has appeared near where I live, so watch this space.