My family recently adopted a very young kitten tat turned out to have panleukopenia and died less than three weeks later. We are heartbroken of course, but still want to add a kitten to our family. I'm concerned because I understand that panleukopenia is a very hardy virus and we have carpets and other hard to disinfect furniture. If we adopt a 12-16 week kitten that has had 2 sets of immunizations, will we be putting it at risk? Or are two sets of immunizations enough to protect it?