This is a fascinating article and a must-read for anyone with very young children who will fly.
Though the research focuses on international travel, the information in the article is important for any flights. And there are valuable tips and precautions which may save the life of an infant. Please take the time to read it or pass it on to others to whom it might be useful if there is any possibility that an infant will be flying soon.
http://online.wsj.com/articles/new-study-focuses-on-in-flight-risk-to-infants-1408574702?tesla=y&mg=reno64-ws j