Epidemiological shifts in 23 acute infectious diseases in Southwest China (2005–2024): trends and implications for surveillance

Acute infectious disease patterns in Sichuan have continuously shifted due to evolving prevention strategies and epidemiological trends. Priority diseases requiring enhanced surveillance include seasonal influenza, pertussis, infectious diarrhea, hepatitis E, brucellosis, typhus, and dengue fever. Reducing the disease burden effectively requires targeted strategies that integrate seasonal and regional patterns and intensify surveillance during high-risk periods.