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U.S.A."],"published-print":{"date-parts":[[2015,11,24]]},"abstract":"<jats:title>Significance<\/jats:title>\n                  <jats:p>Many viruses use phosphatidylserine (PS) receptors to gain entry into target cells, and phagocytes use these receptors to clear apoptotic cells. PS receptors mediate these activities by binding PS on the viruses or apoptotic cells. We demonstrate here that phosphatidylethanolamine (PE) is also a ligand for PS receptors, and that PE plays a key role in apoptotic cell clearance and infection of various pathogenic viruses, including West Nile, dengue, and Ebola viruses. 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