\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.
American Secretary of State Marco Rubio has entered discussions with G7 foreign ministers in France, where the primary agenda revolves around the military confrontation between the United States, Israel, and Iran.，详情可参考钉钉
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Александра Лисица (Куратор раздела «Самопомощь»)
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