Pertussis: should we immunise neurologically disabled and developmentally delayed children?

Area of Science:

• Pediatrics
• Neurology
• Immunology

Background:

• Pertussis (whooping cough) immunization is crucial for child health.
• Concerns exist regarding the safety of pertussis vaccines in children with pre-existing neurological conditions.
• Understanding immunization rates and reasons for non-compliance is vital for public health.

Purpose of the Study:

• To compare pertussis immunization rates in children with neurological disorders versus healthy controls.
• To investigate the reasons for non-immunization in children with neurological disorders.
• To assess the validity of non-immunization reasons based on official health guidelines.

Main Methods:

• A case-control study involving 400 children with neurological disorders and 400 age-matched healthy controls.
• Data collection on immunization status, reasons for non-immunization, and medical advice received.
• Analysis of immunization rates and trends over time, particularly post-1975.

Main Results:

• Children with neurological disorders had significantly lower pertussis immunization rates compared to controls (p<0.01).
• Immunization rates declined sharply for both groups after 1975.
• Cerebral palsy patients exhibited the lowest immunization rate (19%) and highest rate of valid non-immunization reasons (63%).
• Paediatricians advised against pertussis immunization in 32% of the study group versus 2% of controls.

Conclusions:

• The risk of serious neurological handicap following pertussis immunization is minimal.
• There is limited evidence that underlying neurological disease increases risks associated with pertussis vaccination.
• Current pediatric advice regarding pertussis immunization in children with neurological disorders may require re-evaluation.