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Nonspecific effects of neonatal and infant vaccination

Nonspecific effects of neonatal and infant vaccination: public-health, immunological and conceptual challenges

Vaccines can have nonspecific effects through their modulation of responses to infections not specifically targeted by the vaccine. However, lack of knowledge about the underlying immunological mechanisms and molecular cause- and-effect relationships prevent use of this potentially powerful early-life intervention to its greatest benefit. The World Health Organization has identified investigations into the molecular basis of nonspecific vaccine effects as a research priority.

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