Fingers and paws are crossed that your brother will get better.

Some doctors do tend to wait too long before they act. I went a month or so with a broken collar bone, and finally made the doctor perform surgery to fix it. I was told later the bone would have never mended on its own.

Do you have a second opinion about the transplant? a second opinion is a good option to see if your doctor is doing the correct treatment. Another doctor may determine that your brother would be helped in other ways or atleast quicker.