Encephalitis cases are ususlly divided into two basic groups: those caused by various infectious agents (bacteria, viruses, parasites, etc) and those that are idiopathic (ie, the cause is unknown). Since all the tests were negative, it looks like your pup’s case falls into the idiopathic category, which is actually the more common one. So no one can really answer the “what can it be” question, unfortunately, although it’s suspected that many cases are somehow related to problems in the immune system.
The “meningo” part of the diagnosis, by the way, just describes where in the pup’s brain the problem seems to be, and “meningo” is the broadest term, meaning it seems to be in all of her brain tissues, not just one localized area. Which is also common for cases of encephalitis.
All you can do is treat her symptoms and hope for the best. At least you’re giving her love and comfort, which she didn’t have before. |