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The CDC and Duke Health each released studies in January showing that in-person learning is generally safe if schools take proper safety precautions, but some teachers unions argue that schools will not be prepared to reopen fully until all school staff members are vaccinated. full white 270s nbsp;"Not enough information is currently available to say if or when CDC will stop recommending that people wear masks and avoid close contact with others to help prevent the spread of the virus that causes COVID-19," even after they receive both doses of the coronavirus vaccine, the federal agency says on its website. full white 270s Tom Inglesby, Director of the Bloomberg School of Public Health at the Johns Hopkins Center for Health Security, speaks during a briefing on the developments of the novel coronavirus, also known as COVID-19, from medical and research staff from Johns Hopkins University on Capitol Hill on March 6, 2020 in Washington, D. full white 270s nbsp;And last month, Fox News first reported that then-former Director of National Intelligence John Ratcliffe had designated the Space Force the 18th member of the intelligence community, in a move to "break down barriers" to information sharing and to help inform the community's analysis of threats in space. full white 270s