Rotavirus vaccines in Africa and Norovirus genetic diversity in children aged 0 to 5 years old: a systematic review and meta-analysis : Rotavirus vaccines in Africa and Norovirus genetic diversity.
BMC Infect Dis
; 24(1): 547, 2024 May 31.
Article
in En
| MEDLINE
| ID: mdl-38822241
ABSTRACT
Noroviruses are the second leading cause of death in children under the age of 5 years old. They are responsible for 200 million cases of diarrhoea and 50,000 deaths in children through the word, mainly in low-income countries. The objective of this review was to assess how the prevalence and genetic diversity of noroviruses have been affected by the introduction of rotavirus vaccines in Africa. PubMed, Web of Science and Science Direct databases were searched for articles. All included studies were conducted in Africa in children aged 0 to 5 years old with gastroenteritis. STATA version 16.0 software was used to perform the meta-analysis. The method of Dersimonian and Laird, based on the random effects model, was used for the statistical analyses in order to estimate the pooled prevalence's at a 95% confidence interval (CI). Heterogeneity was assessed by Cochran's Q test using the I2 index. The funnel plot was used to assess study publication bias. A total of 521 studies were retrieved from the databases, and 19 were included in the meta-analysis. The pooled norovirus prevalence's for pre- and post-vaccination rotavirus studies were 15% (95 CI, 15-18) and 13% (95 CI, 09-17) respectively. GII was the predominant genogroup, with prevalence of 87.64% and 91.20% respectively for the pre- and post-vaccination studies. GII.4 was the most frequently detected genotype, with rates of 66.84% and 51.24% respectively for the pre- and post-vaccination studies. This meta-analysis indicates that rotavirus vaccination has not resulted in a decrease in norovirus infections in Africa.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Rotavirus Infections
/
Genetic Variation
/
Caliciviridae Infections
/
Rotavirus Vaccines
/
Norovirus
/
Gastroenteritis
Limits:
Child, preschool
/
Humans
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Infant
/
Newborn
Country/Region as subject:
Africa
Language:
En
Journal:
BMC Infect Dis
Journal subject:
DOENCAS TRANSMISSIVEIS
Year:
2024
Document type:
Article
Affiliation country:
Burkina Faso