The document discusses several new methods for diagnosing diseases through the immune system. One method called immunosignaturing uses blood samples to create "immune system snapshots" that can provide rapid presymptomatic diagnosis for a variety of infectious and chronic conditions. Another discusses using modified food allergens to help those with allergies and diagnosing allergies through low-cost ELISA testing of food samples. The techniques aim to provide low-cost, early diagnosis to improve treatment outcomes.