# \#bk-virus

**URL:** https://kidneycommunity.kidneyresearchuk.org/tag/bk-virus/30.md

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## [New results suggest that bladder cancer could be caused by the body’s response to common childhood virus](https://kidneycommunity.kidneyresearchuk.org/t/new-results-suggest-that-bladder-cancer-could-be-caused-by-the-body-s-response-to-common-childhood-virus/102)

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**Author:** [@Kidney\_admin](https://kidneycommunity.kidneyresearchuk.org/u/Kidney_admin)\
**Replies:** 0\
**Last updated:** [6 February 2026 13:55 UTC](https://kidneycommunity.kidneyresearchuk.org/t/new-results-suggest-that-bladder-cancer-could-be-caused-by-the-body-s-response-to-common-childhood-virus/102 "2026-02-06T13:55:17Z")

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BK virus is a common virus that nearly everyone picks up in childhood generally without noticing. Once you have been infected with BK virus, it can hide in the kidneys without causing obvious symptoms. Reactivation of B…