My New Kittens

Question
I had recently taken on 2 kittens from the same house, it was clear on collection that there were many cats living at the house, and at this stage i had no idea that this could mean problems.  After a few days i noticed one of the two were a great deal smaller, wobbly on its feet, and very sleepy. I took them to the vets, for first boosters and worming and hoped that he would get better, after several more days it was clear that this kitten was unwell, he was acting very differently to the other larger kitten.  It turned out he had FIP! and had to be put to sleep.  I went home and bleached the house, washed the toys and bedding.  I NEVER left any feaces in the tray the whole time I had the both of them and was ON-TOP of the cleanliness at home the whole time I had them both, but they were together all the time.  On hearing my story, my friend has given me another kitten!!! it was unexpected and at this stage I was really unaware of just how bad this infection was until I came to work the next day and looked it up on the internet.  This new kitten is 8 weeks old and very very fit and well, but I an concerned that the exisiting kitten is a carrier of the coronavirus and will contaminate this new kitten and I am so stressed out that they will get FIP.  Could you tell me if there is a chance the older healthy kitten is definately going to have any virus or problems, and this new kitten, what is the likely outcome for him?  The older kitten has displayed NO signes of being unwell, is eating fine, pooing fine and is clean and playful, as to is this new kitten.  I have kept separate litter trays and bowls so far, but they have played together.  Does this mean that they will definately be infected with this horrible thing?

Answer
Any cat or kitten that has come from this one household will most likely be a carrier of the virus or have it in latency. That means that they may not show symptoms for a while but sooner or later they will probably get it and succumb to it.

This person breeding kittens needs to get her cats spayed to stop the spread of this fatal disease.
You can have both of the kittens tested to see if they have titers but whether that shows you that they have been exposed or have it is iffy.

You should still get them tested and discuss this with the vet that put the other kitten down. That way before you get really attached and years go by, you will know what to do now or what to expect.
Please emphasize to your friend just how terrible this disease is and that she is helping to spread it by letting her cats breed and not be contained or spayed or vaccinated.

Vaccinations have gone a long way to lowering the incidence of this disease but until ALL people with cats and kittens become responsible for their care by spaying, neutering and vaccinating, this and other fatal feline diseases will still claim the lives of unsuspecting and loved cats everywhere.

I will send good thoughts that these two are negative for having or being carriers of this. Please let me know what you find out.