[Molecular epidemiologic survey of rotaviruses from infants and children with diarrhea in Shanghai]

Mei Zeng1, Qi-rong Zhu, You Zhang

  • 1Children's Hospital, Fudan University, Shanghai, 200032 China.

Insights

Group A rotavirus was the primary cause of diarrhea in Shanghai children from 1999-2001. Serotypes G1, G3, and G2 were most common, with G1 dominating, and long electropherotypes were prevalent.

Area of Science:

  • Virology
  • Molecular Epidemiology
  • Public Health

Context:

  • Rotavirus is a leading cause of severe diarrheal disease in infants and young children globally.
  • Understanding the circulating strains and their genetic diversity is crucial for developing effective prevention and control strategies.
  • This study focuses on the molecular epidemiology of rotaviruses in Shanghai, China, between 1999 and 2001.

Purpose:

  • To investigate the molecular epidemiologic features of rotaviruses, specifically Group A rotavirus, circulating in hospitalized children in Shanghai.
  • To identify the predominant G serotypes and electropherotypes of rotaviruses.
  • To analyze the relationship between rotavirus genotypes and clinical manifestations.

Summary:

  • A total of 1230 stool samples were analyzed. Group A rotavirus was detected in 40.1% of samples using Polyacrylamide Gel Electrophoresis (PAGE).
  • Reverse Transcription Polymerase Chain Reaction (RT-PCR) and dot blot hybridization identified G serotypes. G1 was the most prevalent (55.5%), followed by G3 (27.6%) and G2 (9.4%).
  • Long electropherotypes were dominant. No significant differences in age or clinical symptoms were observed among children infected with different G serotypes. Co-infections with multiple G types were also noted.

Impact:

  • This research provides valuable data on the molecular epidemiology of rotavirus in Shanghai during a specific period.
  • The findings highlight the predominance of G1, G3, and G2 serotypes and long electropherotypes, informing public health surveillance and vaccine strategies.
  • It underscores the importance of continued molecular surveillance to track evolving rotavirus strains and their impact on child health.
Abstract

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