Protective Efficacy Evaluation of Four Inactivated Commercial Vaccines Against Low Pathogenic Avian Influenza H9N2 Virus Under Experimental Conditions in Broiler Chickens.
H9N2
avian influenza
chicken
serology
vaccine evaluation
virus shedding
Journal
Avian diseases
ISSN: 1938-4351
Titre abrégé: Avian Dis
Pays: United States
ID NLM: 0370617
Informations de publication
Date de publication:
09 2021
09 2021
Historique:
received:
12
02
2021
accepted:
03
05
2021
entrez:
24
8
2021
pubmed:
25
8
2021
medline:
18
1
2022
Statut:
ppublish
Résumé
Avian influenza vaccines are commonly used in the poultry industry. The objective of this study was to compare, under experimental conditions, the protective efficacy of four imported commercial inactivated H9N2 vaccines (A, B, C, and D) in broiler chickens. A total of 150 one-day-old chicks were divided into six groups: four experimental groups, each containing 30 chicks, received one of the vaccines (A, B, C, or D) delivered in a 0.3-ml dose subcutaneously at 1 day of age, whereas the control, Group T, was not vaccinated but challenged and Group E was kept unvaccinated and unchallenged. At 21 days postvaccination, Groups A, B, C, D, and T were challenged with 10 Evaluación de la eficacia protectora de cuatro vacunas comerciales inactivadas contra el virus de la influenza aviar H9N2 de baja patogenicidad bajo condiciones experimentales en pollos de engorde. Las vacunas contra la influenza aviar se utilizan comúnmente en la industria avícola. El objetivo de este estudio fue comparar, en condiciones experimentales, la eficacia protectora de cuatro vacunas H9N2 inactivadas comerciales importadas (A, B, C y D) en pollos de engorde. Un total de 150 pollitos de un día se dividieron en seis grupos: cuatro grupos experimentales, cada uno con 30 pollitos, recibieron una de las vacunas (A, B, C o D) administradas en una dosis de 0.3 ml por vía subcutánea al día. de edad, mientras que el control, Grupo T, que no fue vacunado y desafiado y el Grupo E que se mantuvo sin vacunar y sin desafiar. A los 21 días después de la vacunación, los Grupos A, B, C, D y T fueron desafiados con 10
Autres résumés
Type: Publisher
(spa)
Evaluación de la eficacia protectora de cuatro vacunas comerciales inactivadas contra el virus de la influenza aviar H9N2 de baja patogenicidad bajo condiciones experimentales en pollos de engorde. Las vacunas contra la influenza aviar se utilizan comúnmente en la industria avícola. El objetivo de este estudio fue comparar, en condiciones experimentales, la eficacia protectora de cuatro vacunas H9N2 inactivadas comerciales importadas (A, B, C y D) en pollos de engorde. Un total de 150 pollitos de un día se dividieron en seis grupos: cuatro grupos experimentales, cada uno con 30 pollitos, recibieron una de las vacunas (A, B, C o D) administradas en una dosis de 0.3 ml por vía subcutánea al día. de edad, mientras que el control, Grupo T, que no fue vacunado y desafiado y el Grupo E que se mantuvo sin vacunar y sin desafiar. A los 21 días después de la vacunación, los Grupos A, B, C, D y T fueron desafiados con 10
Identifiants
pubmed: 34427407
doi: 10.1637/aviandiseases-D-21-00015
doi:
Substances chimiques
Influenza Vaccines
0
Vaccines, Inactivated
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
351-357Références
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