Environmental factors influencing the development and spread of resistance in erythromycin-resistant streptococcus pneumoniae

Abstract Background: Bacterial drug resistance is becoming increasingly serious,This study aims to investigate the relationship between the resistance rate of erythromycin-resistant Streptococcus pneumoniae and reasons for the epidemic under complex geographical and climatic factors in China. Methods: Data spanning from 2014 to 2021, including drug resistance rates, isolate rates, meteorological variables, and demographic statistics, were collected from the China Antimicrobial Resistance Monitoring System, the China Statistical Yearbook and China Meteorological Website. Our analysis involved nonparametric tests and the construction of multifaceted regression models for rigorous multivariate analysis. Results: Single-factor analysis revealed significant differences in the resistance rate and isolate rate of erythromycin-resistant Streptococcus pneumoniae across different regions characterized by Hu Huanyong lines or different climate types. Multivariate regression analysis indicated positive correlations between the drug resistance rate and temperature, Subtropical climate, GDP, Hu Huanyong line, and Tm; the isolate rate showed a positive correlation with regional GDP and a negative correlation with monsoon climate. Conclusion: The prediction model developed in this study holds significant value for forecasting the resistance rate of erythromycin-resistant Streptococcus pneumoniae amidst China's diverse meteorological and climate conditions.