Frontiers in Public Health
Blood donation trends in Zhejiang Province, 2017–2025: an ecological study before, during, and after COVID-19
Background Voluntary blood donation is fundamental to ensuring a safe and adequate blood supply for clinical transfusion. The COVID-19 pandemic posed unprecedented challenges to global blood collection systems, including those in China. This ecological study aimed to characterize long-term blood donation patterns in Zhejiang Province from 2017 to 2025, spanning the pre-pandemic, pandemic, and post-pandemic periods. Methods The blood donation data from 2017 to 2025 were obtained from the BIS 3.0 database maintained …