VIRUS-NEUTRALIZING ANTIBODY RESPONSE OF DUCKS TO IMMUNIZATION WITH VIRULENT OR ATTENUATED HEPATITIS VIRUS.
D000818:Animals; D057134:Antibodies, Neutralizing; D000917:Antibody Formation; D004372:Ducks; D006518:Hepatitis Viruses; D007114:Immunization; D011200:Poultry; D012106:Research; D014611:Vaccination
D057134:Antibodies, Neutralizing
ANTIBODY FORMATION; EXPERIMENTAL LAB STUDY; HEPATITIS VIRUSES; IMMUNIZATION; POULTRY