The Bacillus Calmette-Guerin (BCG) vaccine is primarily used to protect against tuberculosis, particularly in countries with high prevalence of the disease. It is also being explored for its potential non-specific immune-boosting effects against other infections and certain types of cancer.

Bacillus Calmette-Guerin (BCG) Vaccine

Bacillus Calmette-Guerin

The BCG vaccine, primarily used against tuberculosis, is derived from a strain of Mycobacterium bovis and has been in use since the early 20th century. Though it provides variable efficacy against pulmonary tuberculosis, it is more effective in preventing severe forms of the disease in children, such as tuberculous meningitis and miliary disease.

BCG Vaccine

Tuberculosis is a contagious bacterial infection caused by Mycobacterium tuberculosis, primarily affecting the lungs but can spread to other organs. It remains a global health challenge due to its airborne transmission, drug-resistant strains, and the need for prolonged treatment regimens.

Tuberculosis

High prevalence of tuberculosis

Non-specific immune-boosting effects

Infections occur when harmful microorganisms, such as bacteria, viruses, fungi, or parasites, invade the body, multiply, and cause disease or damage. The body's immune response is crucial in fighting infections, but the effectiveness of this response can vary based on the pathogen and the individual's health status.

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