Haemophilia B: Generally known as the “Xmas illness”, this affliction is carried on the feminine line but only affects male cats. The condition is understood to crop up among the British Shorthairs. Getting a great breeder is not really also challenging, due to the existence of registering bodies. (Based on https://andyfhbyf.blogrenanda.com/33992007/top-latest-five-british-shorthair-lifespan-urban-news