Calmette & Guérin

Calmette & Guérin, commonly known as BCG, refers to a vaccine developed by French scientists Albert Calmette and Camille Guérin in the early 20th century. It is primarily used to prevent tuberculosis (TB), a serious infectious disease that primarily affects the lungs. The vaccine contains a weakened strain of the bacterium that causes TB, stimulating the immune system to fight off the disease if exposed. While BCG is highly effective in preventing severe forms of TB in children, its role in adult protection is variable, making it an important public health tool in endemic regions.