流感、禽流感和流感大流行：我们准备好了吗？

Seasonal, avian and pandemic influenza： are we prepared？

2017-2018年冬春季我国流感疫情高发，引起了社会和公众的极大关注。2018年正值1918年“西班牙流感”大流行100周年，本期“流感大流行100周年”栏目的系列文章，系统地展示了全球和我国历次流感大流行的影响、特点和应对情况，回顾了我国在监测、预防控制策略、疫苗接种、治疗等方面的进展和经验，也提出了季节性流感防治、人感染禽流感防控和大流行应对工作的不足和挑战，对进一步提高公众和专业机构对流感大流行和流感防控的认识，加强我国流感大流行应对工作有积极意义。

China experienced a very high and severe influenza seasonal epidemics during the past winter and spring of 2017-2018 season. This year of 2018 is the 1004 anniversary of the 1918 ＂Spanish influenza＂ pandemic, a series of papers under the topic ＂One Hundred Years of Influenza Pandemics＂ are produced to demonstrate the impact, characteristics and responses of the past influenza pandemics in global and China, to review the progress and experiences of influenza surveillance, prevention and control strategies, vaccination and antivirus in China, and to discuss the gap and challenges of the prevention, control and response to the seasonal influenza, human avian influenza infection and influenza pandemics. We hope this series could help to raise the awareness of the seasonal and pandemic influenza in publics, and to improve the pandemic preparedness in China.