In 2006, FAAN began funding a study to determine how sensitization occurs and why some children with peanut allergy report having a reaction the first time they eat peanut. [When you realize that it is the vaccinations that are the first exposure, when they eat the peanut it is the second exposure... - bfg] Early results from the study, presented at AAAAI, showed that sensitization to peanut may be occurring through the skin, but much more research is needed to understand this process and the causes of food allergy. [Basically, they are clueless and will never find the cause.... - bfg]