A burst of innovation in treatments is particularly good news for adults. We explain why https://www.economist.com/science-and-technology/2025/07/25/can-you-overcome-an-allergy?taid=69f1d6c9120b720001bffcea&utm_campaign=editorial-social&utm_content=discovery.content&utm_medium=social-media.content.np&utm_source=voante