SOT recipients should avoid close contact with individuals with respiratory tract infections. AII All SOT recipients and candidates should receive annual seasonal influenza vaccination. AII Household members and HCWs in contact with SOT recipients should also receive influenza vaccination. AII Live-attenuated influenza vaccine is not recommended in SOT recipients. DII In selected patients to whom influenza vaccine cannot be administered, prophylaxis with oseltamivir 75 mg/day for 12 weeks during the influenza season may be proposed. CI The use of palivizumab for prevention of respiratory syncytial virus infection is not recommended in SOT recipients. CIII