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[kirrachaos]

From my knowledge the symptoms are related to the onset of other viruses or bacteria attacking the body as the immune system has dropped due to OPMV. For example a lung infection/neumonia can set in. This is a sign that could appear with a lot of viruses. Star Gazing and belly up are all signs which appear in several viruses and at the moment there is no easy way of testing the animals to see if it is OPMV until the animal dies or unless you want/can pay thousands of dollars to let a vet cut your live animals open to take a biopsy of some organs and that is still no garantee. I have been reccomended before to take microscope slides of the animals bacteria when they are healthy. This will then store what the animals bacteria is in the animals stomach when they are presumably helathy and then if you critter falls sick at a later date you can then refer back to that slide to see what bacteria are doing with in the animals stomach which can give you some sort of indication on whats going on. Talk to your vet about this and the correct way to do it. it helps!