Dry aerosol vaccination against Newcastle disease: II. Serological response in chicks.
Day-old chickens with Newcastle disease maternal antibodies are separated in two batches. One batch (S) is vaccinated by liquid spray method with HB1 strain: the other one (NS) is not vaccinated. At 2, 3 or 4 weeks subgroups from S and NS batches are vaccinated with HB1 strain by dry aerosol method. Serological controls reveal an important increase of Newcastle antibodies within two weeks after dry aerosol vaccination. Then a drop of the antibody quantities is observed during weeks 2 to 4 post dry aerosol vaccination. In the following weeks, the antibody level increases very slowly.
D000336:Aerosols; D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D002645:Chickens / Q000276:immunology*; D005612:Freeze Drying; D007109:Immunity; D009521:Newcastle Disease / Q000517:prevention & control*; D009522:Newcastle disease virus / Q000276:immunology*; D014765:Viral Vaccines / Q000008:administration & dosage*
D000336:Aerosols; D000914:Antibodies, Viral; D014765:Viral Vaccines