title: Protection induced in chick embryos against Ranikhet disease virus by some plant extracts or their fractions.
mesh_terms: D000818:Animals; D000998:Antiviral Agents; D002642:Chick Embryo; D009521:Newcastle Disease / Q000188:drug therapy*; D009522:Newcastle disease virus / Q000187:drug effects*; D010936:Plant Extracts / Q000627:therapeutic use*; D010946:Plants, Medicinal
chemical_list: D000998:Antiviral Agents; D010936:Plant Extracts