BCG Vaccine Scar: Understanding its Meaning and Implications
BCG Vaccine Scarring: A Closer Look That small mark on your arm, a common sight among South Africans, is often a BCG (Bacille Calmette-Guérin) vaccine scar. This scar results from the vaccination against tuberculosis (TB), a serious bacterial infection primarily affecting the lungs. The appearance of a BCG scar is highly variable; some are barely noticeable, while others are more prominent, raised, or even slightly indented. Crucially, a BCG scar doesn't guarantee complete immunity to TB, but rather contributes to a stronger immune response....