What happened to the Second-hand Smoke caause?

LONDON — A baffling phenomenon known as sudden infant death syndrome is one of the leading causes of death for children under 1. Now, British researchers say they may have found a contributing factor: bacteria.

They found potentially dangerous bacteria such as Staphylococcus aureus and E. coli in nearly half of all babies who died suddenly and without explanation over a decade at a London hospital. Their findings are in Friday's Lancet medical journal.

"This may be another piece to the puzzle," said Marian Willinger, a SIDS expert at the U.S. National Institute of Child Health and Human Development who was not connected to the British study.

The researchers cautioned, however, that while the bacteria were found in the SIDS babies, that does not necessarily mean the bugs were responsible. Bacterial infections have long been suspected by some doctors to play a role in SIDS.

"We don't know whether it's a cause or if it's identifying another potential risk factor," said Dr. Nigel Klein, a professor at the Great Ormond Street Hospital for Children, where the study was conducted, and one of the paper's authors.

He said that the higher level of bacteria might be evidence of another condition that killed the baby, such as a room that was too hot or had poor ventilation. Or it may have been coincidental.

A SIDS diagnosis means that no other cause of death can be found in an otherwise healthy infant who dies suddenly, usually in their sleep. In the United States, SIDS kills more than 2,000 infants every year.

http://www.foxnews.com/story/0,2933,360401,00.html