Jo Cheah speaks to Peter Wark about his article on biologic therapies for severe asthma with persistent type 2 inflammation. Peter explains the difference between difficult and severe asthma\xa0and\xa0how to test for persistent type 2 inflammation.\xa0He\xa0also\xa0runs through the available biologics and\xa0when and how they are used. Read the\xa0full article\xa0by Peter and his co-author, Sahan Chandrasekara, in\xa0Australian Prescriber.