Immunization status of children with cerebral palsy: A cross-sectional hospital-based study in Vietnam.

Aim: To describe the immunization status of children with CP in Vietnam and identify factors associated with vaccine non-uptake in this group.

Methods: We conducted an active prospective case ascertainment of children with cerebral palsy (CP) attending the National Children's Hospital in Hanoi between June to November 2017, following the model proposed by the Paediatric Active Enhanced Disease Surveillance system in Australia. All children were assessed by trained paediatricians at the hospital and their immunization history was recorded.