Acceptance and Adverse Events of the 2009 H1N1 Vaccination in Immunosuppressed Pediatric Liver Transplant Recipients

A retrospective analysis of H1N1 vaccination in 127 children at ≥1 year after liver transplantation found only moderate acceptance (56%) of the vaccination. Physical adverse events were of moderate severity, but frequent (74%). Protection against infection was good, with infection rates of 4% in vaccinated children versus 25% in nonvaccinated children.