Yes, the pound is well aware of what has happened. They have shut down the cattery and it's under quarantine. They are also paying our vet bills and have been in direct communication with our vet and others about this.
As Tink mentioned, no, I probably shouldn't have gone back to that pound for the second cat. That's one of those Mommy-guilt moments that will probably be with me for a long, long time. But, at the time, we thought it was an issue with the first litter. The second Wendy was so different in temperament, we just didn't see this coming. Our vet has told us to come to her when we're ready for the next cat (not for a while, trust me), she will help us find one that has had all it's shots and is as healthy as can be verified.
It's all being handled as well as something like this can be. We are grateful to our vet and the pound supervisor for their quick assistance and sympathy. And for your sympathy, as well. This week has sucked. But we have lots of activities planned for this afternoon and tomorrow as distraction. (More Transformers action, of course!)