欧洲疾控中心：2025年欧洲SARS-CoV-2和动物流感生物信息学外部质量评估（ESIB-EQA）报告（英文版）

SARS-CoV-2 and influenza viruses are significant public health threats with varying impacts on global health. SARS-CoV-2, the virus behind the COVID-19 pandemic, exhibits high transmissibility and recurrent waves driven by new variants. Recent outbreaks of avian influenza in poultry and dairy cattle with cases of human infections highlight the importance of monitoring mutations and reassortment events in zoonotic influenza strains that may lead to increased human infections. Both SARS-CoV-2 a