BK virus

== English == === Etymology === From the initials B.K., pertaining to a renal transplant patient whose urine the virus was first isolated from in 1971. === Noun === BK virus (plural BK viruses) A virus very similar to JC virus, ubiquitous and rarely causing disease in healthy people but creating urogenital problems in the immunosuppressed. ==== Synonyms ==== BKV (abbreviation) BK polyomavirus, BKPyV