Beata pisze:http://www.2ndchance.info/panleukopenia.htmThe symptoms of panleukopenia are quite distinctive and diagnosis is not difficult. Poisons, feline leukemia, feline aids and Salmonellosis can produce symptoms that mimic this disease but it is rare for any of them to produce so low a white cell number. White blood cell numbers begin to decline 2-3 days after infection. By the end of the first week it can be hard to find any white blood cells or leukocytes in blood films examined under the microscope.