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News & Announcements Cerebral silhouette DateDecember 4, 2003 Share Email Facebook Twitter LinkedIn Trending Fauci says herd immunity possible by fall, ‘normality’ by end of 2021 Where are we now after a second impeachment? Connection as an answer to turmoil Plant-based diet may feed key gut microbes When science meets mindfulness (Staff photo Rose Lincoln/Harvard News Office) Against a backdrop of afternoon sun, GSE doctoral student Kathleen Moran studies at Gutman Library.