A Leukocyte count (white blood cell count) of or around 26,000 is implying that the body is attempting to fight off a very serious viral or bacterial infection. Proof of this is in my own experience. I had a seizure and after arriving at the hospital, tests showed my white blood cell count was over 26,000, leading my Doctors to conducting a spinal tap on me. They were looking for meningitis or any other serious infections. Hopefully I could help!