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Can the BCG TB vaccine prevent XDR-TB?

April 26, 2017BCG TB vaccine

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Can the BCG TB vaccine prevent XDR-TB?

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• The BCG vaccine prevents severe forms of TB in children, and it is likely that the vaccine would have the same effect in preventing TB even if children are exposed to extensively drug-resistant TB (XDR-TB). However, it has limited effectiveness for preventing TB in adults. Therefore, the effect of BCG against XDR-TB likely would be very limited. New vaccines are urgently needed, and the World Health Organization (WHO) and members of the Stop TB Partnership are actively working on new vaccines.