It depends, was your F3 tested for Coronavirus when he arrived in your home? He may well have come exposed to Coronavirus, as I said they estimate 80-90% of cats have been exposed. It's NOT FIP that the test measures. The test measures exposure to Coronavirus and that is NOT FIP. The FIP form is a mutated form. For all you know, your other cats gave it to your F3...unless they were all tested before he arrived, you have no way of knowing.
I absolutely do NOT recommend getting rid of cats for carrying Coronavirus! Maybe this is why your vet hates to talk about it, because people tend to panic. His error was calling it FIP virus though, it is not accurate and it inspires panic.
The so-called "FIP vaccine" has not been shown to actually give protection against FIP, so it is a useless vaccine...why give it? I don't recommend the FeLV vaccine as it is generally only recommended for indoor/outdoor cats and I don't home my Savannahs in indoor/outdoor homes.
I absolutely do NOT recommend getting rid of cats for carrying Coronavirus! Maybe this is why your vet hates to talk about it, because people tend to panic. His error was calling it FIP virus though, it is not accurate and it inspires panic.
The so-called "FIP vaccine" has not been shown to actually give protection against FIP, so it is a useless vaccine...why give it? I don't recommend the FeLV vaccine as it is generally only recommended for indoor/outdoor cats and I don't home my Savannahs in indoor/outdoor homes.