BCG vaccine treatment could protect against Alzheimer’s and other dementias

  • The Bacillus Calmette-Guerin (BCG) vaccine has been in use for more than 80 years to combat tuberculosis.
  • In the 1970s, it was found to be an effective immunotherapy treatment for early-stage bladder cancers.
  • Since then, it has become one of the standard treatments for this cancer, administered directly into the bladder.
  • A study has now found that it may have a beneficial side effect — people receiving this therapy seem to have a reduced risk of developing dementia.

By Katharine Lang on May 26, 2023 — Fact checked by Harriet Pike, Ph.D.

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