title: Failure to protect ducklings against malaria by vaccination with histidine-rich protein.
mesh_terms: D000818:Animals; D001798:Blood Proteins / Q000276:immunology*; D004372:Ducks / Q000469:parasitology*; D006639:Histidine / Q000276:immunology*; D008289:Malaria, Avian / Q000401:mortality / Q000517:prevention & control*; D011201:Poultry Diseases / Q000517:prevention & control*; D013997:Time Factors; D014611:Vaccination / Q000662:veterinary*
chemical_list: D001798:Blood Proteins; D006639:Histidine