E-ISSN 2636-3003 | ISSN 2636-2996
 

Original Research (Original Article) 


Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field

Ellakany, H.F., Abd El-Hamid, H. S., Nasef, S. A., Elbestawy, A. R., Nasr, S.M., Abd El Aziz, M. N., Gado, A. R., Zedan, R. E., Yonis, A. E..

Abstract
The most prevalently circulating genotype of Newcastle disease (NDV) in Egypt was VII of class II NDV strains. Control of NDV by vaccination is a common strategy in intensively raised commercial flocks and Newcastle disease vaccines have been used worldwide to protect against clinical signs and mortalities. The aim of the present study was to evaluate the level of protection against clinical disease and virus shedding afforded by different NDV vaccines. The strain used for challenge was NDV/CH/EG/18/2015 (GenBank accession number- KU377781), classified as Genotype VIId with ICPI of 1.89, and MDT of 48 hrs. Broiler chickens were challenged intra-occularily at 28 days of age using 100l of 106 EID50 per dose/bird. Results indicated that protection percent against mortality and clinical signs was 100% and 93.3% for inactivated NDV vaccine and LaSota, respectively. Shedding was not prevented by any vaccine.

Key words: genotype VII, protection, shedding, challenge, Newcastle, vaccine


 
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How to Cite this Article
Pubmed Style

, H.F. , El-Hamid A, S. H, Nasef , A. S, Elbestawy , R. A, Nasr , S.M. , Aziz AE, N. M, Gado , R. A, Zedan , E. R, Yonis , E. A. Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. DJVS. 2019; 1(1): 17-20. doi:10.5455/DJVS.25271


Web Style

, H.F. , El-Hamid A, S. H, Nasef , A. S, Elbestawy , R. A, Nasr , S.M. , Aziz AE, N. M, Gado , R. A, Zedan , E. R, Yonis , E. A. Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. http://www.damanhourjvetsci.com/?mno=25270 [Access: February 18, 2019]. doi:10.5455/DJVS.25271


AMA (American Medical Association) Style

, H.F. , El-Hamid A, S. H, Nasef , A. S, Elbestawy , R. A, Nasr , S.M. , Aziz AE, N. M, Gado , R. A, Zedan , E. R, Yonis , E. A. Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. DJVS. 2019; 1(1): 17-20. doi:10.5455/DJVS.25271



Vancouver/ICMJE Style

, H.F. , El-Hamid A, S. H, Nasef , A. S, Elbestawy , R. A, Nasr , S.M. , Aziz AE, N. M, Gado , R. A, Zedan , E. R, Yonis , E. A. Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. DJVS. (2019), [cited February 18, 2019]; 1(1): 17-20. doi:10.5455/DJVS.25271



Harvard Style

, H.F., ., El-Hamid, . A., S., . H., Nasef, ., A., . S., Elbestawy, ., R., . A., Nasr, ., S.M., ., Aziz, . A. E., N., . M., Gado, ., R., . A., Zedan, ., E., . R., Yonis, . & E., . A. (2019) Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. DJVS, 1 (1), 17-20. doi:10.5455/DJVS.25271



Turabian Style

, H.F., Abd El-Hamid, H. S., Nasef, S. A., Elbestawy, A. R., Nasr, S.M., Abd El Aziz, M. N., Gado, A. R., Zedan, R. E., Yonis, and A. E.. 2019. Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. Damanhour Journal of Veterinary Sciences, 1 (1), 17-20. doi:10.5455/DJVS.25271



Chicago Style

, H.F., Abd El-Hamid, H. S., Nasef, S. A., Elbestawy, A. R., Nasr, S.M., Abd El Aziz, M. N., Gado, A. R., Zedan, R. E., Yonis, and A. E.. "Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field." Damanhour Journal of Veterinary Sciences 1 (2019), 17-20. doi:10.5455/DJVS.25271



MLA (The Modern Language Association) Style

, H.F., Abd El-Hamid, H. S., Nasef, S. A., Elbestawy, A. R., Nasr, S.M., Abd El Aziz, M. N., Gado, A. R., Zedan, R. E., Yonis, and A. E.. "Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field." Damanhour Journal of Veterinary Sciences 1.1 (2019), 17-20. Print. doi:10.5455/DJVS.25271



APA (American Psychological Association) Style

, H.F., ., El-Hamid, . A., S., . H., Nasef, ., A., . S., Elbestawy, ., R., . A., Nasr, ., S.M., ., Aziz, . A. E., N., . M., Gado, ., R., . A., Zedan, ., E., . R., Yonis, . & E., . A. (2019) Evaluation of the protection of commercial live and inactivated NDV vaccines against Newcastle virus genotype VIId circulating in the field. Damanhour Journal of Veterinary Sciences, 1 (1), 17-20. doi:10.5455/DJVS.25271