Medical microbiology • Virology • Post-surgical infections • Obstetrics/gynaecology infections • Hospital-acquired infections • Central nervous system infections • Paediatric/neonatal infections • Antimicrobial choices and side effects • Infections in general practice • Screening for resistant organisms and decolonisation • Orthopaedic/prosthetic joint infections • Infections in solid organ and bone marrow transplants • Infections acquired from the built environment • Infective endocarditis

Dr Machin has interests in clinical microbiology and clinical virology. In particular, he has expertise in the diagnosis and management of viral infections in sexual health, solid organ and haematological transplant and critically ill patients. Additionally, in the diagnosis and management of emerging viral infections, having been involved in the recent COVID-19 pandemic and Monkeypox outbreak. He has a specialist interest in infection prevention and control of viral infections in hospital settings.