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BCG protects 'more than thought'
The BCG vaccine offers more protection
against tuberculosis than experts
currently appreciate, say scientists.
A UK study suggests that BCG protects
some people in a way previously unknown
- by stopping them catching the
infection in the first place.
Experts had thought it merely worked by
preventing TB infection turning into an
active disease.
The Oxford University researchers told
the Lancet the findings could help with
new vaccine development.
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