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In 2007, Pediatrics in Review published a review article on sudden infant death syndrome (SIDS). (1) This article uses that article as a reference and provides an update on the topic.

SIDS is defined as a sudden unexplained death before 1 year of age. The death usually occurs in a previously healthy infant, and the cause of death remains unexplained despite a thorough case investigation, including a complete autopsy, death scene investigation, and review of the clinical history.

In the United States, ∼2,300 infants die of SIDS each year. Despite the success of the Back to Sleep campaign, which is associated with a steady decline in deaths from SIDS from the beginning of the campaign in 1994 up to 2000, SIDS remains the third leading cause of death in infancy and the most common cause of death between 1...

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