Which vaccine is the most widely used in infancy to prevent a severe form of tuberculosis?
Quick Answer
The BCG vaccine is the most widely used vaccine against tuberculosis, especially severe childhood TB. It is used in many countries but not everywhere.
The Full Story
The Bacille Calmette-Guérin, or BCG, vaccine is the most widely used vaccine in infancy to protect against severe tuberculosis in children, such as TB meningitis and disseminated TB. It was first used in humans in 1921 and remains part of national immunization schedules in many countries with higher TB rates. Its protection against pulmonary TB in adults is more variable, which is why its use differs by region. Even so, it remains a major tool in global TB control.
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"The century-old baby vaccine still fights one of the world’s deadliest infections."
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