rather, some researchers suggest that the “trained immunity” provided by the BCG vaccine can actually enhance the body’s ability to fight off other unrelated infections. The scar does not grow or spread, and while it may be a source of cosmetic concern for some, it remains a symbol of preventive medicine and early childhood protection. Understanding its origin helps to dismantle the unnecessary shame associated with the mark, transforming it from a mysterious blemish into a quiet story of global health and resilience.
The BCG Mark: Decoding the Science and Stigma of the World’s Most Common Scar
