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\nSince the 1790s, when the English physician Edward Jenner coined the term vaccination (from the Latin vacca for cow) to refer to the use of cowpox to inoculate against smallpox, all subsequent vaccines have relied on the same fundamental principle: antigen specificity. That is, the vaccine mimics a distinctive component of the pathogen — the spike proteins that cover SARS-CoV-2, for example — to prepare the immune system to recognize and react quickly to the real pathogen.
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2025年10月,党的二十届四中全会擘画了中国未来五年的发展蓝图。一周后,外事出访期间,习近平总书记这样向世界阐释中国成功的密码:“70多年来,我们坚持一张蓝图绘到底,一茬接着一茬干”。
一股新中式乐园热潮正席卷全国,亮眼数据宣告文旅市场新势力的强势崛起。