Abstract
Background: Invasive pneumococcal disease due to Streptococcus pneumoniae can cause mortality and severe morbidity due to sepsis, meningitis and pneumonia, particularly in young children and the elderly. Recurrent invasive pneumococcal disease is rare yet serious sequelae of invasive pneumococcal disease that is associated with the immunocompromised and leads to a high mortality rate. Method: This retrospective study reviewed recurrent invasive pneumococcal disease cases from the Canadian Immunization Monitoring Program, ACTive IMPACT between 1991 and 2019, an active network for surveillance of vaccine-preventable diseases and adverse events following immunization for children ages 0-16 years. Data were collected from 12 pediatric tertiary care hospitals across all 3 eras of public pneumococcal conjugate vaccine implementation in Canada. Results: The survival rate within our cohort of 180 recurrent invasive pneumococcal disease cases was 98.3%. A decrease of 26.4% in recurrent invasive pneumococcal disease due to vaccine serotypes was observed with pneumococcal vaccine introduction. There was also a 69.0% increase in the rate of vaccination in children with preexisting medical conditions compared with their healthy peers. Conclusion: The decrease in recurrent invasive pneumococcal disease due to vaccine-covered serotypes has been offset by an increase of non-vaccine serotypes in this sample of Canadian children.
Original language | English |
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Pages (from-to) | E166-E171 |
Journal | Pediatric Infectious Disease Journal |
Volume | 41 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 1 2022 |
Externally published | Yes |
Bibliographical note
Funding Information:S.H. has received funding for clinical trials and have served on ad hoc advisory boards for Pfizer, the manufacturer of PCV7 and PCV13, unrelated to pneumococcal disease. M.S. is supported via salary awards from the BC Children’s Hospital Foundation, the Canadian Child Health Clinician Scientist Program and the Michael Smith Foundation for Health Research. M.S. has been an investigator on projects funded by GlaxoSmithKline, Merck, Pfizer, Sanofi-Pasteur, Seqirus, Symvivo and VBI Vaccines. All funds have been paid to his institute, and he has not received any personal payments. G.T. has received funding for pneumococcal studies from Merck and has served on a Pfizer advisory committee for vaccines. S.M. has participated on an advisory board for Pfizer, is an investigator on an investigator-led project funded by Pfizer, and has received personal fees from Johnson and Johnson China and GlaxoSmithKline outside the submitted work.
Publisher Copyright:
© 2022 The Authors.
ASJC Scopus Subject Areas
- Pediatrics, Perinatology, and Child Health
- Microbiology (medical)
- Infectious Diseases
PubMed: MeSH publication types
- Journal Article