• The risk of opportunistic infections, in particular CMV viraemia • Recommendation to avoid vaccination with live vaccines for at least 12 months following MabCampath therapy • The risk of infusion reactions o Need for premedication o That treatment for hypersensitivity reactions, including measures for resuscitation should be available during administration o That the risk of infusion reactions is highest in first week of therapy o That if the reaction is moderate or severe dosing should continue at the same level (ie no dose escalation) until each dose is well tolerated o That if therapy is withheld for more than 7 days then MabCampath should be reinstituted with gradual dose escalation