Figure 1. Incidence of serious infections by type and time period in the first year post-transplant: there was a marked decrease after day 60 although a low but persistent viral infection risk persisted during the first post-transplant year.

Pneumonias due to a specific organism, or diagnosed as due to a specific infection type (based on the clinical presentation, course, and response to therapy) are included under the bacterial, fungal and viral categories. The category of “Pneumonias” had no organism identified, responded to combined anti-bacterial and anti-fungal therapy, but a specific infection category could not be determined. The fall in patient number is due to lack of complete follow-up or patient death.