Newcastle Disease Immunization Studies

Winterfield, R. W.; Seadale, E. H.

doi:10.3382/ps.0360054

Cited by 15 publications

(3 citation statements)

References 3 publications

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“…Mass immumization techniques for poultry have been well documented in the literature (Winterfield and Seadole, 1956;Markham et al 1954;White et al 1954;Beard and Easterday, 1967). However, effective vaccination of young chickens with maternal antibody has been recognized as a problem for some time.…”

Section: Discussionmentioning

confidence: 97%

“…Programs of vaccine administration pose additional problems. In an effort to find a compromise between the easy but relatively inefficient method of applying vaccine in the drinking water and the effective but time consuming method of individual application by the ocular route there is an increasing interest in the application of the virus by spray (Winterfield et al, 1957;Winterfield and Seadole, 1956;Allan, 1973;Gough and Allan, 1973). Allan (1971) emphasized that the efficiency of a live virus vaccine depends on its invasiveness and its power to multiply sufficiently within the chicken to set up an adequate immune response.…”

Section: Introductionmentioning

confidence: 99%

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Vaccination of Chickens with a Clone-Selected Lastoa Strain of Newcastle Disease Virus ,

Eidson

Kleven

1980

Poultry Science

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A cone-selected Lasota strain of Newcastle disease (ND) was found to be more immunogenic than the B1 strain but less immunogenic than the regular Lasota strain while having the same pathogenic index as the B1 strain. The geometric mean hemagglutination-inhibition (HI) titers induced in chickens vaccinated with the cloned Lasota strain were higher than those induced in chickens vaccinated with the B1 strain but were found to be slightly less than the titers obtained in chickens vaccinated with the regular Lasota strain. The clone-selected Lasota strain had essentially the same spreading potential as the regular Lasota strain, as indicated by geometric mean titers and challenge mortality of nonvaccinated chickens which were placed in contact with the vaccinated chickens. Oral, ocular, or aerosol vaccination of maternally immune chickens with the clone-selected Lasota strain gave essentially the same protection as those vaccinated with the regular Lasota strain.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Vaccination of Chickens with a Clone-Selected Lastoa Strain of Newcastle Disease Virus ,

Eidson

Kleven

1980

Poultry Science

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show abstract

“…the ocular route, there is an increasing interest in the application of the virus by spray (Winterfield et al, 1957;Winterfield and Seadole, 1956;Allan, 1973;Gough and Allan, 1973). Allan (1971) emphasized that the efficacy of a live virus vaccine depends on its invasiveness and its power to multiply sufficiently within the chicken to set up an adequate immune response.…”

Section: Introductionmentioning

confidence: 99%

Vaccination of Broiler Chicks from Breeder Flocks Immunized with a Live or Inactivated Oil Emulsion Newcastle Disease Vaccine ,

et al. 1982

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One-day-old chicks used in this study were from breeder flocks vaccinated with live (B1 and LaSota) or inactivated oil emulsion Newcastle disease (ND) vaccine. Chicks were vaccinated against ND by various procedures. The vaccination response was evaluated by hemagglutination-inhibition antibody titers and by challenge. Chicks from breeder flocks vaccinated with live virus vaccine had a geometric mean hemagglutination-inhibition antibody titer (GMT) for Newcastle of 7 (low maternal antibody titer) at 1 day of age, whereas those chickens derived from breeder flocks vaccinated with inactivated oil emulsion ND vaccine had a GMT of 84 (high maternal antibody titer). One-day-old chicks injected with live B1 vaccine were not immunized against ND regardless of breeder flock source. However, chickens with low maternal antibody titers were effectively immunized against ND when injected at 1 day of age with an inactivated or inactivated plus live ND vaccine. Chicks with high maternal antibody titers were not effectively protected when vaccinated with inactivated vaccine at 1 day of age; however, these chicks were protected when injected with a combined live and inactivated ND vaccine. Chicks from both breeder flocks were effectively immunized against ND when injected at 1 day of age with a live or inactivated ND vaccine and revaccinated by aerosol at 21 days of age with live B1 ND vaccine. Even though they were protected against ND, there appears to have been an interference phenomenon in chicks derived from breeder flocks vaccinated with the live ND vaccine. Beak-O-Vac vaccinated chickens were not effectively protected against ND when compared with chicks vaccinated by aerosol at 1 day of age. Water vaccination at 7, 14, or 21 days of age was as effective as aerosol vaccination when administered to chicks with low maternal antibody titers. However, water vaccination was not as effective as aerosol vaccination when administered to chicks with high maternal antibody titers.

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Control by Vaccination

Meulemans¹

1988

Newcastle Disease

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Newcastle Disease Immunization Studies

Cited by 15 publications

References 3 publications

Vaccination of Chickens with a Clone-Selected Lastoa Strain of Newcastle Disease Virus ,

Vaccination of Chickens with a Clone-Selected Lastoa Strain of Newcastle Disease Virus ,

Vaccination of Broiler Chicks from Breeder Flocks Immunized with a Live or Inactivated Oil Emulsion Newcastle Disease Vaccine ,

Control by Vaccination

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