Related Experiment Video
Updated: May 12, 2025
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Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
Published on: January 28, 2019
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Rotavirus prevalence and genotypes in the Central African Republic, 2011-2021
Joël W Dote1, Virginie Banga Mingo2, Jean Fandema2
1Institut Pasteur de Bangui, BP 923, Bangui, Central African Republic. joel.dote@pasteur-bangui.cf.
BMC Infectious Diseases
|May 9, 2025
Summary
Rotavirus gastroenteritis is a major infant killer in sub-Saharan Africa. This study identified common rotavirus strains (G1P[8] and G1P[6]) in the Central African Republic from 2011-2021, providing crucial pre-vaccine data.
Area of Science:
- Virology
- Public Health
- Epidemiology
Background:
- Rotavirus gastroenteritis poses a significant threat to infant mortality, especially in sub-Saharan Africa.
- Sentinel surveillance for rotavirus gastroenteritis in the Central African Republic (CAR) began in 2011.
- This study aimed to determine the burden and circulating rotavirus strains in CAR between 2011 and 2021.
Purpose of the Study:
- To assess the prevalence of rotavirus gastroenteritis in young children in CAR.
- To identify the specific rotavirus genotypes circulating in CAR over a ten-year period.
- To establish baseline rotavirus genotype data prior to potential vaccine introduction.
Main Methods:
- Stool samples were collected from children under five with diarrhea at a sentinel site in Bangui, CAR.
- Samples were tested for rotavirus group A antigen using enzyme immunoassay (EIA).
- RNA from positive samples underwent semi-nested RT-PCR for VP7 and VP4 gene genotyping.
Main Results:
- Over 1800 stool samples were collected, with a 46% rotavirus positivity rate.
- The most common VP7 genotypes were G1 (35.4%) and G2 (26.6%).
- The predominant VP4 genotypes were P[6] (42.7%) and P[8] (35.6%), with G1P[8] and G1P[6] being the most frequent combinations.
Conclusions:
- This research provides a decade-long overview of rotavirus genotype prevalence in CAR.
- The findings offer essential pre-vaccine baseline data for rotavirus gastroenteritis surveillance.
- Understanding circulating strains is vital for informing public health strategies and vaccine efficacy in the region.
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