Feline Leukaemia

Question
I had to have my 18 month old cat put to sleep yesterday.  He had been diagnosed with cat flu shortly after I had adopted him and we have been in and out of the vets for treatment ever since.  Last weekend he looked really sick and we discovered mid-week that he had lymphoma and were offered chemo providing that he tested negative for feline leukaemia.  Unfortunately he didn't and as the poor fellow had already had the discomfort of having had the area surrounding his lungs drained twice already and fluid was already building up again and making it hard for hime to breathe, I decided to let him go to sleep.  My biggest concern now is that my other cat (his brother) is going to go the same way.  He too, has suffered from cat flu from way back and I am scared stiff that he will test positive for feline leukaemia and go the same way.  I am going to have him tested next week but was wondering if anyone knew what the chances were of kittens from the same litter having the same problems.  I bought both cats from a farm shop and the parents origin was unknown but I had them both innoculated.  I know that it probably wasn't a wise idea and my vet has seriously reprimanded me for doing this but surely everyone deserves a chance and even though I wouldn't go down this route again and would go to a proper breeder I do not regret my decision as they have bought alot of pleasure to my life and hopefully I have to theirs.  Ironically I bought them shortly after my mother died of pancreatic cancer as I thought that they would be a great comfort at the time of the great sadness that I was experiencing.  Doom and gloom seems to be following me around lately!

Answer
oh Clare, wheat a terrible story. You must be devastated!
The chances of both kittens having leukemia especially if they were both sick as kittens would be quite high. I really wish I could try to sound hopeful for you.. but the odds are probably 50/50 or higher that he will be carrying it.
HOWEVER< you will know within a day of getting the tests done and that should put your mind at ease. I sometimes find that the anxiety of not knowing is worse than having the information and the diagnosis... even if it isn't good. I will cross my fingers for you ! Teresa