I think we can both agree, that though it's all around us and there's little we can do to avoid contact - it's still a good idea for us (and the OP) to try to clean things and wash our hands.
When you go out to eat at a restaurant, you hope the person making your food has washed their hands, even though you can and probably will come in contact with all of those harmful organisms some other way eventually.
It may only take one spore, but if you're only ingesting a small number of them you have some hope that your stomach will do it's job and they won't make it passed. When you ingest several thousand or even million at one time you really better be healthy.
I didn't know about dogs and metro! That's good information that I'll, and hopefully anyone else reading, will remember.
It was weird when I took it, my hands went partially numb/tingly for a day along with a terrible headache that progressed into the worst migraine I've had in several years. Unfortunately, our pets can't tell us about such side effects.
Also, antibiotics are not the only medication that serves as a risk factor for people. Just about any long term treatments can be problematic - iirc PPI's (proton pump inhibitors -prilosec, nexium, etc) and acid reducers - because they lower acidity making it easier to become infected, any narcotic painkiller - because they slow digestion, NSAIDs - they're a GI problem risk factor to begin with. There's a few others that I can't remember.
When I became ill I had just finished amox two weeks prior and had been taking prilosec for a while.
I'm sorry that you have so many pets with this, and have even lost one to this. Poor kitty, I couldn't imagine 8 months of that.
Do you know how it started? Did one pet help infect all of the others? Have your vet(s) mention if anymore animals brought into your home would potentially be adding to the cycle - and probably your stress load?
As for me, that was nearly 9 months ago - the clostridium colitis is gone, but my GI is a lost cause for other reasons that probiotics can't help.
I wish the OP luck, but please do take some care.(and you too twokatz!) As I said earlier if you or anyone in your homes get terrible diarrhea and a fever (that will be the first part of it), go to a doctor and make them take a stool sample - don't let them give you any antibiotics until they know what is going on.
One of the things that made me so sick was that I went to the ER and was mistreated with more (wrong) antibiotics.
If you haven't already, maybe PM twokatz for any good information pertaining to cats that she can link you to so you can print that out for your vet.