Invasive Group A Streptococcus Infection among Children, Rural Kenya
Published Date:Feb 2016
Source:Emerg Infect Dis. 22(2):224-232.
Group A Streptococcus
Invasive Group A Streptococcus Infection Among Children, Rural Kenya
Multilocus Sequence Typing
Pubmed Central ID:PMC4734542
Funding:093804/Wellcome Trust/United Kingdom
091758/Z10/Z/Wellcome Trust/United Kingdom
077092/Wellcome Trust/United Kingdom
098532/Wellcome Trust/United Kingdom
083579/Wellcome Trust/United Kingdom
Description:To determine the extent of group A Streptococcus (GAS) infections in sub-Saharan Africa and the serotypes that cause disease, we analyzed surveillance data for 64,741 hospital admissions in Kilifi, Kenya, during 1998-2011. We evaluated incidence, clinical presentations, and emm types that cause invasive GAS infection. We detected 370 cases; of the 369 for which we had data, most were skin and soft tissue infections (70%), severe pneumonia (23%), and primary bacteremia (14%). Overall case-fatality risk was 12%. Incidence of invasive GAS infection was 0.6 cases/1,000 live births among neonates, 101/100,000 person-years among children <1 year of age, and 35/100,000 among children <5 years of age. Genome sequencing identified 88 emm types. GAS causes serious disease in children in rural Kenya, especially neonates, and the causative organisms have considerable genotypic diversity. Benefit from the most advanced GAS type-specific vaccines may be limited, and efforts must be directed to protect against disease in regions of high incidence.
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