Honestly it depends on the shelter. Some shelters have very healthy animals and try very hard not to adopt out the sick ones, some shelters are so overrun (typically open admission kill shelters) with illness but any shelter can be in either situation or somewhere in between
Do most shelter cats have a lot of medical issues that are not addressed before adoption???I've been seeing a lot of stories like that lately!?
- Look at the faces of the cats in the shelter. Do you see goopy, drippy or teary eyes. Are cats sneezing? Mucous around the nose? Eyes partially shut. If yes the cat has an upper respiratory illness.
- Look in the litter boxes. To the extent that you can see stool, is it well formed or loose? Diarrhea indicates a likely GI tract parasite or related issue.
URI's and GI issues are the most common shelter illnesses.
What no shelter can do is guarantee that a cat won't come down with something after you get home due to incubation period issues. So get their medical policy in writing. Will they provide any post-adoption follow up care and if yes for how long? What is their return policy?
What the shelter can and should tell you is medical history of each animal since its been in their care, vaccination history, testing history for FIV/FeLV (retesting 2-3 months post adoption is good due to incubation issues). When was the cat last seen by a vet? Was it ever seen by a vet? Do they have vets on staff or visiting?
Also you might want to check out this article on shelter illnesses http://www.thecatsite.com/a/identif...dopted-from-animal-shelters-and-rescue-groups
And then the good news, go make a happy happy adoption when you're ready. Discuss with your BF in advance the type of cat you want, personality etc and then go looking!