Dr Kosmidis sees a large number of patients with infection, including aspergillosis, tuberculosis, sepsis, infection in the immunocompromised, post-operative infection and fever of unknown origin in outpatient clinics and inpatient ward rounds. He has been Tuberculosis Clinical Lead and Outpatient Parenteral Antimicrobial Therapy Lead in Manchester University NHS Foundation Trust, and regularly provides advice nationwide to clinicians referring patients to the National Aspergillosis Centre.