G-serotypes of group A rotaviruses in Pilsen region (Czechia)

Area of Science:

• Virology
• Pediatric Infectious Diseases
• Epidemiology

Background:

• Rotavirus is a leading cause of severe diarrheal disease in infants and young children globally.
• Understanding rotavirus serotype distribution is crucial for vaccine development and public health strategies.
• Previous studies have indicated regional variations in rotavirus serotype prevalence.

Purpose of the Study:

• To determine the G serotype distribution of rotavirus in infected children in a specific region.
• To investigate potential age-related differences in rotavirus serotype prevalence.
• To identify dominant rotavirus serotypes during a defined study period.

Main Methods:

• Enzymoimmunoassay (EIA) using VP7 specific monoclonal antibodies was employed for serotyping.
• Fecal samples from 260 children with confirmed rotavirus infection, collected between 1999 and 2002, were analyzed.
• Statistical analysis, including chi-squared test, was used to assess significance.

Main Results:

• Rotavirus serotypes were identified in 71.2% (185/260) of the fecal samples.
• The G1 serotype was the most prevalent overall during the study period.
• The G3 serotype was found with statistically significant higher prevalence in children up to 36 months of age (p=0.028).
• In 4 cases, a change in rotavirus serotype was observed within the same child over time.
• No dominant serotype was identified in children with nosocomial rotavirus infections.

Conclusions:

• The G1 serotype was the predominant rotavirus type circulating in the studied pediatric population.
• Age is a significant factor influencing rotavirus G serotype distribution, with G3 being more common in younger children.
• Further research into rotavirus epidemiology, including temporal and geographical variations, is warranted.