Wael Elfeil
Associate Professor of Poultry Disease
MEVAC Clinical Research Consultant, MEVAC Inc. Egypt; Associate Professor of Poultry Disease, Suez canal University, Egypt
Associate Professor of Poultry Disease
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Article published the September 9, 2020
INTRODUCTION Newcastle disease virus (NDV) is Avian avulavirus type-1 that belongs to the genus Avulavirus of the family Paramyxoviridae (Swayne and Glisson, 2013). Newcastle disease virus isolates vary in their pathogenicity to chickens and may include at least 3 pathotypes; lento-genic (low virulence), mesogenic (moderate virulence), and velogenic (high virulence). Velogenic NDV remain a major ...
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Wael Elfeil likes the comment:
Wael Elfeil Thanks, Professor for your answer and for sharing this interesting article. What about your opinion on the combination of Vector ND plus killed ND and live vaccine?
Participation in Forum on August 30, 2020
Mustafa Ezat Dear DR mustafa greeting combination of Vector ND with Inactivated ND, results varies based on the epidemiological situation in each area and type of production in broiler , you can use vector ND instead of one-day old inactivated ND then use inactivated at 7-9-day of life together with 2-3 live ND in endemic areas in layers flocks, can use vector ND and it will be add value to the ...
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Wael Elfeil likes the comment:
Trial better to compare between commercial killed vaccine which contains genotype 2 and killed vaccine which contains strain homologous strain as field strain to evaluate the efficacy of different vaccine against ND genotype 7.
Participation in Forum on August 24, 2020
Dear Dr. MustafaGreeting for sure, comparison between commercial killed vaccine which contains genotype 2 and killed vaccine which contains strain homologous strain as field strain to evaluate the efficacy of different vaccine against ND genotype 7; is a good idea.We already did it; please check the following articles on engormixhttps://en.engormix.com/poultry-industry/articles/evaluation-some-vac ...
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Article published the August 12, 2020
Introduction Viral safety and potency are considered the two cornerstones for production of satisfactory vaccines. The three main aspects of viral safety of vaccines are the residual pathogenicity of vaccine virus, the presence of extraneous agents, and the inadequate inactivation of vaccine virus (Dodet et al. 2010). Vaccine safety mostly have the priority over the potency; as the problems origi ...
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Article published the August 5, 2020
Introduction Newcastle disease (ND) is considered one of the most important poultry viral diseases in terms of worldwide distribution and economic impacts. The NDV is classified into lentogenic, mesogenic, and velogenic strains according to the pathogenicity in chickens. The NDV is classified as a member of the orthoavulavirus genus of subfamily Avulavirinae in the Paramyxoviridae family. ...
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Participation in Forum on July 16, 2020
daniel severino Thanks for your nice comments.For sure, each region should evaluate the proper prime-boost vaccine strategy and choice the proper vaccines type for IBV according to the epidemiology of the region to obtain the proper protection.
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Wael Elfeil likes the comment:
A very sensitive and makes a diferent about how we should get our vaccines and tge tyoe according to climate and conditions over this ..plus had seen the boosting of tge vaccines but there are also some areas that drs are not taking on a conscience on this by doing as mentioned and have a detemined vaccines for the area. Challenge are being seen and heads on to attain the resolution by taking time ...
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Location:Ismailia, Al Isma´iliyah, Egypt
Profile: Academic / scientific
Professional Title: Associate Professor of Poultry Disease
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