Changes in Epidemic Patterns of Respiratory Pathogens in Guangzhou, China During the COVID-19 Pandemic

Strategic Insights -

A recent study published in the BMC Infectious Diseases journal has investigated the epidemiological characteristics of pediatric respiratory pathogens in Guangzhou, China, from 2018 to 2023, in the context of the COVID-19 pandemic. The research aimed to evaluate the impact of non-pharmaceutical interventions (NPIs) on the transmission dynamics and seasonal patterns of respiratory pathogens.

Key Takeaways:

  • The study conducted a retrospective analysis of 317,828 pediatric patients who underwent respiratory pathogen tests, with 1,160,764 tests conducted, yielding an overall pathogen detection rate of 8.02%.
  • The positive rate during the COVID-19 phase (18.44%) was significantly lower than that of the Pre-COVID-19 (27.55%) and Post-COVID-19 (27.15%) phases.
  • Ten common respiratory pathogens, including respiratory syncytial virus (RSV), Mycoplasma pneumoniae (MP), and Influenza A virus (FluA), were detected, with Influenza A virus being the most common.
  • The study found significant changes in the epidemic patterns of respiratory pathogens in different phases, with a decrease in detection rates during the COVID-19 phase.
  • The researchers concluded that their findings offer valuable insights for guiding public health strategies and optimizing the prevention and control of respiratory infections.
  • The study was supported by the National Key Research and Development Program of China and conducted at Guangzhou Women and Children's Medical Center.

Statistics:

  • 317,828 pediatric patients were included in the study, with a median age of 3.4 years (IQR: 1.3-6.0).
  • 1,160,764 respiratory pathogen tests were conducted, yielding an overall pathogen detection rate of 8.02% (93,108/1,160,764).
  • The positive rate during the COVID-19 phase was 18.44% (95% CI 14.89-22.00%).
  • The positive rates for the Pre-COVID-19 and Post-COVID-19 phases were 27.55% (95% CI 23.95-31.16%) and 27.15 (95% CI 21.47-32.84%), respectively.

Sources:

  • Changes in the epidemic patterns of respiratory pathogens of children in guangzhou, China during the COVID-19 pandemic. BMC Infectious Diseases, 2025;25(1):833.
  • National Key Research and Development Program of China.