1. Viral Entry Properties Required for Fitness in Humans Are Lost through Rapid Genomic Change during Viral Isolation Iketani, Sho; Shean, Ryan C.; Ferren, Marion; Makhsous, Negar; Aquino, Dolly B.; des Georges, Amedee; Rima, Bert; Mathieu, Cyrille; Porotto, Matteo; Moscona, Anne; Greninger, Alexander L. 2018 Articles BiochemistryImmunologyVirologyNatural selectionParainfluenza virusesMetagenomicsLungs--Infections