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BK and JC viruses (BKV and JCV) are polyomaviruses that belong to polyomaviridae family. BKV and JCV are composed of an icosahadral viral particle (virion) containing 5000 base pair double-stranded circular DNA molecule and surrounded by a protein capsid. These viruses do not possess a lipid envelope. BKV and JCV infections are asymptomatic as they remain latent in about 90% of the main human population and may lead to infections resulting in severe diseases such as hematuria, hemorrhagic cystisis, ureteric stenosis, etc once they become reactivated upon suppression of the immune system. There are 7 distinct genotypes of JC and 4 of BK classified. [1], [2], [3]


Bosphore BKV Quantification Kit v1

Bosphore JCV Quantification Kit v1

Bosphore JCV-BKV Detection Kit v1

Bosphore JCV-BKV Detection Kit v2



1. Baron, Samuel. (1996). Medical Microbiology, 4th ed., The University of Texas Medical Branch at Galveston. ISBN  0-9631172-1-1.
2. Rajpoot DK, Gomez A, Tsang W, Shanberg A: Ureteric and urethral stenosis: a complication of BK virus infection in a pediatric renal transplant patient. Pediatr Transplant 2007, 11(4):433-5
3. Fioriti D, Degener AM, Mischitelli M, Videtta M, Arancio A, Sica S, Sora F, Pietropaolo V: BKV infection and hemorrhagic cystitis after allogeneic bone marrow transplant. Int J Immunopathol Pharmacol 2005, 18(2):309-16