title: Studies on Newcastle (Ranikhet) disease. II. Immunity developed after vaccination with "F" strain of chicks hatched from eggs of immunized hens.
mesh_terms: D000818:Animals; D002645:Chickens; D007109:Immunity; D009521:Newcastle Disease / Q000276:immunology*; D011201:Poultry Diseases / Q000276:immunology*; D013045:Species Specificity; D014611:Vaccination