title: An antigenically distinct subtype of influenza virus A which is virulent for mice in primary passage of allantoic fluid.
authors.forename: T G
authors.initials: TG
authors.lastname: WARD
authors.forename: B E
authors.initials: BE
authors.lastname: EDDY
mesh_terms: D000818:Animals; D029521:Alphainfluenzavirus; D051379:Mice; D009975:Orthomyxoviridae