Vaccine zaps allergy in record time

 作者:胡请     |      日期:2019-03-02 10:17:01
By Aria Pearson ALLERGY sufferers could bid farewell to their sneezes with a new generation of vaccines that take effect within weeks. Existing vaccines for allergies involve three to five years of regular injections with increasing amounts of allergen – the substance that triggers an allergy. All the while the immune response slowly changes from a predominance of T-helper 2 (TH2) cells, immune cells responsible for triggering allergic reactions, to T-helper 1 (TH1) cells, which stimulate the production of protective antibodies. Because nothing is directing allergens to the right place in immune cells,