Molecular Characterization of Rotavirus From Under-Five Children Presenting With Diarrhea at a Tertiary Hospital in

Kellu Bukar Ali1, Yahaya Yaqub2, Mairo Usman Kadaura3

  • 1Department of Medical Microbiology, University of Maiduguri, Maiduguri, Borno State, Nigeria, unimaid.edu.ng.

Insights

Rotavirus gastroenteritis (RVGE) is prevalent in Nigerian children under 5, with G9P[6] being the most common genotype. Evaluating rotavirus vaccine efficacy is crucial to reduce childhood deaths from this diarrheal disease.

Area of Science:

  • Pediatrics
  • Virology
  • Public Health

Background:

  • Diarrhea poses a significant threat to child health in developing nations.
  • Rotavirus is a primary cause of severe, potentially fatal, acute watery diarrhea in young children.
  • Understanding rotavirus gastroenteritis (RVGE) prevalence and genotypes is vital for effective control.

Purpose of the Study:

  • To determine the prevalence of rotavirus gastroenteritis (RVGE) in children under five years of age.
  • To characterize the circulating rotavirus genotypes (G and P types) in the study population.
  • To inform public health strategies and vaccine efficacy evaluations in Nigeria.

Main Methods:

  • A cross-sectional study involving 173 children with acute diarrhea was conducted.
  • Stool samples were screened for rotavirus antigen using lateral flow immunochromatography.
  • VP7 (G type) and VP4 (P type) genotypes were identified using reverse transcription-polymerase chain reaction (RT-PCR).

Main Results:

  • Rotavirus prevalence was 28% by immunochromatography and 14.5% by RT-PCR.
  • Identified G types included G1, G2, G1G2, G9, G12, and G nontypeable (G NT).
  • Identified P types included P4, P6, and P8, with G9P[6] being the most frequent genotype combination (28%).

Conclusions:

  • A high prevalence of RVGE was observed in Northeast Nigeria.
  • The study identified key circulating rotavirus genotypes, including G9P[6].
  • Evaluating the efficacy of the current rotavirus vaccine (ROTAVAC) is recommended to decrease RVGE-associated mortality.
Abstract