Whooping cough: Christchurch 1982

Area of Science:

• Pediatrics
• Infectious Diseases
• Immunology

Background:

• Whooping cough (pertussis) presents a persistent public health challenge in New Zealand.
• Recent data indicates a substantial number of hospital admissions for this disease.

Purpose of the Study:

• To investigate the incidence of whooping cough among children admitted to Christchurch Hospital.
• To analyze the immunisation status of these pediatric patients.
• To explore potential reasons for breakthrough infections in immunised children.

Main Methods:

• Retrospective review of pediatric hospital admissions over a twelve-month period.
• Data collection on patient demographics and whooping cough diagnosis.
• Analysis of immunisation records for admitted children.

Main Results:

• Sixty-four cases of whooping cough were admitted to Christchurch Hospital's paediatric wards.
• A significant proportion, 24 patients (37.5%), were fully immunised according to the New Zealand schedule.
• This highlights a considerable rate of pertussis infection in vaccinated children.

Conclusions:

• The study identifies a concerning rate of whooping cough among immunised children in New Zealand.
• Further investigation is warranted to understand the efficacy of current pertussis vaccination schedules.
• Potential factors contributing to vaccine failure require exploration to improve public health strategies.