title: Isolation of paramyxoviruses from free-flying birds of the order Passeriformes in the German Democratic Republic.
mesh_terms: D000818:Animals; D001717:Birds / Q000382:microbiology*; D003429:Cross Reactions; D000939:Epitopes; D005859:Germany, East; D006385:Hemagglutination Inhibition Tests; D010252:Paramyxoviridae / Q000302:isolation & purification*; D010614:Pharynx / Q000382:microbiology; D013045:Species Specificity
chemical_list: D000939:Epitopes