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\nIn the study, mice were given a drop of the vaccine in their noses. Some recieved multiple doses, given a week apart. Each mouse was then exposed to one type of respiratory virus. With three doses of the vaccine, mice were protected against SARS-CoV-2 and other coronaviruses for at least three months.，更多细节参见51吃瓜
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今年是三年集中整治攻坚决战之年，必须更好贯通各方责任、压实重点任务，加大力度、提高质效、形成机制，力争取得行风重塑、基层善治、群众受益的综合性成果。