title: Inoculation time differentials for expression of interference of Newcastle disease virus by swine influenza virus in chick embryos.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D053118:Influenza A Virus, H1N1 Subtype; D009521:Newcastle Disease / Q000821:virology*; D009522:Newcastle disease virus; D009975:Orthomyxoviridae; D014611:Vaccination
keywords: INFLUENZA VIRUSES; NEWCASTLE DISEASE/virology