We cover an episode of The Skeptic's Guide to Emergency Medicine) that covers a validation study) of the Step by Step approach to pediatric fever. This approach to infants with a fever <3 months old is alluring as it does not necessitate a lumbar puncture. This algorithm had a better sensitivity and negative predictive value than the Rochester criteria. The approach did miss some infants with a serious bacterial infection and these tended to be those between 21 and 28 days old and those with fever onset
