Using a new kind of immunotherapy treatment, Australian researchers have managed to cure a majority of the children in their study suffering from a peanut allergy. "The desensitization to peanuts persisted for up to four years after treatment," reports The Guardian. From the report: Tang, an immunologist and allergist, pioneered a new form of treatment that combines a probiotic with peanut oral immunotherapy, known as PPOIT. Instead of avoiding the allergen, the treatment is designed to reprogram the immune system's response to peanuts and eventually develop a tolerance. It's thought that combining the probiotic with the immunotherapy gives the immune system the "nudge" it needs to do this, according to Tang. Forty-eight children were enrolled in the PPOIT trial and were randomly given either a combination of the probiotic Lactobacillus rhamnosus with peanut protein in increasing amounts, or a placebo, once daily for 18 months. At the end of the original trial in 2013, 82% of children who received the immunotherapy treatment were deemed tolerant to peanuts compared with just 4% in the placebo group. Four years later, the majority of the children who gained initial tolerance were still eating peanuts as part of their normal diet and 70% passed a further challenge test to confirm long-term tolerance. The results have been published in the Lancet Child & Adolescent Health.