Molecular Epidemiology of Pneumococci in Gambian Children
Author Information
Author(s): Antonio Martin, Dada-Adegbola Hannah, Biney Ekow, Awine Tim, O'Callaghan John, Pfluger Valentin, Enwere Godwin, Okoko Brown, Oluwalana Claire, Vaughan Adeola, Zaman Syed MA, Pluschke Gerd, Greenwood Brian M, Cutts Felicity, Adegbola Richard A
Primary Institution: Medical Research Council Laboratories, Banjul, The Gambia
Hypothesis
What is the genetic structure of Streptococcus pneumoniae causing invasive disease in Gambian children?
Conclusion
The study provides important background data on the genetic structure of S. pneumoniae prior to the use of the 9-valent pneumococcal conjugate vaccine in The Gambia.
Supporting Evidence
- Twenty-nine different serotypes of pneumococci were identified among the isolates.
- Serotypes 14, 19A, 12F, 5, 23F, and 1 accounted for 58.3% of all serotypes.
- MLST analysis revealed 72 sequence types, with 46 being novel.
Takeaway
The study looked at germs that cause serious illness in young children in The Gambia and found many different types of these germs.
Methodology
The study analyzed 132 S. pneumoniae isolates from children aged 2–29 months using serotyping, antibiotic susceptibility testing, BOX-PCR, and MLST.
Limitations
The study only included isolates from a specific time period and location, which may not represent the broader population.
Participant Demographics
Children aged 2–29 months from The Gambia, both vaccinated and unvaccinated.
Statistical Information
Confidence Interval
95% CI 157, 715 for children aged 6 weeks to 5 months; 95% CI 369, 857 for those aged 6–11 months.
Digital Object Identifier (DOI)
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