Hesham Sultan
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View article: Adult-Onset Still’s Disease (AOSD) Complicated by Haemophagocytic Lymphohistiocytosis (HLH) and Transient Thyrotoxicosis: A Diagnostic Challenge
Adult-Onset Still’s Disease (AOSD) Complicated by Haemophagocytic Lymphohistiocytosis (HLH) and Transient Thyrotoxicosis: A Diagnostic Challenge Open
Adult-onset Still's disease (AOSD) is a rare systemic autoinflammatory disorder that can mimic infectious, autoimmune, and endocrine conditions. Overlapping features may delay diagnosis, as in this case, which was further confounded by abn…
View article: Different Production Systems and Their Impacts on Growth Performance and Carcass Quality of Lohi Lambs In Pakistan
Different Production Systems and Their Impacts on Growth Performance and Carcass Quality of Lohi Lambs In Pakistan Open
This study aimed to evaluate the impact of different production systems on the growth performance and carcass composition of male Lohi lambs. A total of 64 male Lohi lambs were assigned to two main groups (A and B) of 32 lambs each, with e…
View article: The Protective Efficacy of Recombinant Herpesvirus of Turkey (rHVT-ND-IBD) Vaccine Against Challenge with Velogenic Newcastle Disease Virus Genotype VII.1.1
The Protective Efficacy of Recombinant Herpesvirus of Turkey (rHVT-ND-IBD) Vaccine Against Challenge with Velogenic Newcastle Disease Virus Genotype VII.1.1 Open
Newcastle disease virus (NDV) outbreaks occurred in several vaccinated and non-vaccinated poultry farms all over the world causing severe economic losses despite extensive vaccination. Class II genotype VII.1.1 NDV are predominant in Middl…
View article: Molecular Characterization of Hydropericardium Hepatitis Syndrome in Broiler Chickens
Molecular Characterization of Hydropericardium Hepatitis Syndrome in Broiler Chickens Open
Infection with fowl adenoviruses (FAdVs) can lead to a number of syndromes inchickens. These syndromes, which include inclusion body hepatitis (IBH) and hepatitishydropericardium syndrome (HHS), as well as others, are responsible for treme…
View article: Appraisal of Three Commercial Inactivated Avian Influenza Vaccines Efficacy Against Challenge with Egyptian Duck-Origin Clade 2.3.4.4b H5N8 in Commercial Broiler Chickens
Appraisal of Three Commercial Inactivated Avian Influenza Vaccines Efficacy Against Challenge with Egyptian Duck-Origin Clade 2.3.4.4b H5N8 in Commercial Broiler Chickens Open
The highly pathogenic avian influenza (HPAI) H5N8 virus belonging to clade 2.3.4.4bwas detected in Egypt during 2016, which is one of the few countries depends onvaccination as a main control strategy. This study was conducted to assess th…
View article: The Protective Efficacy of Recombinant Herpesvirus of Turkey (rHVT-ND-IBD) Vaccine against Velogenic Newcastle Disease Virus Genotype VII.1.1.
The Protective Efficacy of Recombinant Herpesvirus of Turkey (rHVT-ND-IBD) Vaccine against Velogenic Newcastle Disease Virus Genotype VII.1.1. Open
Newcastle disease virus (NDV) outbreaks have been reported worldwide invaccinated and non-vaccinated chicken farms, causing severe economic losses despiteextensive vaccination. This study assessed the effectiveness of recombinant herpes vi…
View article: Effectuality of Three Inactivated H5 Vaccines of Different Clades Against Newly Emerged Egyptian HPAI H5N1/2022 and H5N8/2019belonging to Clade 2.3.4.4b and Immunopathology of Both Viruses on Some Immune Organs
Effectuality of Three Inactivated H5 Vaccines of Different Clades Against Newly Emerged Egyptian HPAI H5N1/2022 and H5N8/2019belonging to Clade 2.3.4.4b and Immunopathology of Both Viruses on Some Immune Organs Open
The H5Nx viruses belonging to clade 2.3.4.4b has become enormous intimidationglobally. Outbreaks resulting from this clade have been reported in various countriesresulting in an exceptional numeral bird mortalities. This work aimed to asse…
View article: First Detection and Molecular Characterization of Novel Variant Infectious Bursal Disease Virus (Genotype A2dB1b) in Egypt
First Detection and Molecular Characterization of Novel Variant Infectious Bursal Disease Virus (Genotype A2dB1b) in Egypt Open
Infectious bursal disease (IBD) is an immunosuppressive disease causing significant damage to the poultry industry worldwide. Its etiological agent is infectious bursal disease virus (IBDV), a highly resistant RNA virus whose genetic varia…
View article: Emergence of the Novel Infectious bursal disease viruse Variant in Vaccinated Poultry Flocks in Egypt
Emergence of the Novel Infectious bursal disease viruse Variant in Vaccinated Poultry Flocks in Egypt Open
Infectious bursal disease viruses (IBDVs) have a profound impact on poultry production worldwide, directly causing mortality rates of up to 100%, and indirectly through their immunosuppressive effects. Since the emergence of the antigenica…
View article: Efficacy of Commercial (HVT-ND) Vector Vaccine Against Newcastle Disease Virus Genotype VII.1.1 Challenge in Commercial Broiler Chickens
Efficacy of Commercial (HVT-ND) Vector Vaccine Against Newcastle Disease Virus Genotype VII.1.1 Challenge in Commercial Broiler Chickens Open
Genotype VII Newcastle disease viruses (NDV) are still circulating in Egypt despite extensive vaccination programs. In our study, we evaluate the protective efficacy of commercial (HVT- ND) vector vaccine against velogenic NDV Genotype VII…
View article: Efficacy of the Genotype-Matched and Non-Matched Vaccines Against Newcastle Disease Virus Genotype VII.1.1. Challenge in Broiler Chickens
Efficacy of the Genotype-Matched and Non-Matched Vaccines Against Newcastle Disease Virus Genotype VII.1.1. Challenge in Broiler Chickens Open
Despite extensive vaccinations attempts, genotype VII Newcastle disease viruses (NDV) continue to circulate at the Middle East and Asia causing significant economic losses.In this investigation, we assessed the effectiveness of three inact…
View article: EFFECT OF SUPPLEMENTATION OF MINERALS ON THE PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF LACTATING CATTLE AND BUFFALO
EFFECT OF SUPPLEMENTATION OF MINERALS ON THE PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF LACTATING CATTLE AND BUFFALO Open
A significant part of a complete dairy feeding program is the mineral-vitamin component. Physiologically, minerals are involved in reproduction, lactation, cow/calf health during pregnancy and cow recovery after calving and general herd he…
View article: Isolation of Genetically Diverse H5N8 Avian Influenza Viruses in Poultry in Egypt, 2019–2021
Isolation of Genetically Diverse H5N8 Avian Influenza Viruses in Poultry in Egypt, 2019–2021 Open
The global spread of avian influenza virus (AIV) of clade 2.3.4.4b since 2016 has caused severe losses in wild birds and poultry and has posed a risk for the infection of mammals including humans. The vaccination of poultry has been used t…
View article: Protective Efficacy of IBDV Winterfield H-2512 and SYZA-26 Immune-complex Vaccines against Recent Egyptian Very Virulent IBDV in Commercial Broiler Chickens
Protective Efficacy of IBDV Winterfield H-2512 and SYZA-26 Immune-complex Vaccines against Recent Egyptian Very Virulent IBDV in Commercial Broiler Chickens Open
Infectious bursal disease is a highly contagious disease that affects chickens and results in huge economic losses worldwide.This study aimed to compare protection obtained by vaccination with two different IBDV immune-complex (ICX) vaccin…
View article: A Comparative Study on Winterfield 2512-G61 and Winterfield-2512 IBDV Immune-complex Vaccines in Commercial Broiler Chickens
A Comparative Study on Winterfield 2512-G61 and Winterfield-2512 IBDV Immune-complex Vaccines in Commercial Broiler Chickens Open
Infectious bursal disease (IBD) is a very dangerous immunosuppressive disease affecting poultry production worldwide. The good vaccination program that can overcome the maternal derived antibodies (MDA) in young chicks is the main method t…
View article: Efficacy of the Newcastle Disease Virus Genotype VII.1.1-Matched Vaccines in Commercial Broilers
Efficacy of the Newcastle Disease Virus Genotype VII.1.1-Matched Vaccines in Commercial Broilers Open
Class II genotype VII Newcastle disease viruses (NDV) are predominant in the Middle East and Asia despite intensive vaccination programs using conventional live and inactivated NDV vaccines. In this study, the protective efficacies of thre…
View article: Epidemiology, Genetic Characterization, and Pathogenesis of Avian Influenza H5N8 Viruses Circulating in Northern and Southern Parts of Egypt, 2017–2019
Epidemiology, Genetic Characterization, and Pathogenesis of Avian Influenza H5N8 Viruses Circulating in Northern and Southern Parts of Egypt, 2017–2019 Open
Highly pathogenic avian influenza (HPAI) viruses of subtype H5N8 continue to circulate, causing huge economic losses and serious impact on poultry production worldwide. Recently, HPAIV H5N8 has been spreading rapidly, and a large number of…
View article: Efficacy of The Turkey Herpes virus-IBDV Vector Vaccine Against Recent Egyptian Very Virulent IBDV in Commercial Layers
Efficacy of The Turkey Herpes virus-IBDV Vector Vaccine Against Recent Egyptian Very Virulent IBDV in Commercial Layers Open
The infectious bursal disease virus (IBDv) is widespread in poultry flocks all around the world.During the period between 2016-2017, 22 IBD outbreaks were investigated in El-Minoufiya Governorate in different chicken sectors (11 broilers, …
View article: Newcastle Disease Virus Vaccines Based On Genotype VII Strains Provide Efficient Protection Against Challenge With Circulating Very Virulent Field Virus (Genotype VII) In Broiler Chickens
Newcastle Disease Virus Vaccines Based On Genotype VII Strains Provide Efficient Protection Against Challenge With Circulating Very Virulent Field Virus (Genotype VII) In Broiler Chickens Open
Newcastle disease virus (NDV) outbreaks still occur and cause disastrous economic losses in broiler chickens despite intensive vaccination policies using genetically different vaccines from the circulating strains. This study aimed to comp…
View article: Protective Efficacy of Different Live Attenuated Infectious Bronchitis Virus Vaccination Regimes Against Challenge With IBV Variant-2 Circulating in the Middle East
Protective Efficacy of Different Live Attenuated Infectious Bronchitis Virus Vaccination Regimes Against Challenge With IBV Variant-2 Circulating in the Middle East Open
Six vaccination regimes using classical (Mass-type) and variant (IB-VAR2 and IB-793B) live vaccines were evaluated against Middle Eastern variant-2 infectious bronchitis virus challenge. Six groups of SPF chicks (30 birds/group) were vacci…
View article: Genetic and Antigenic Relatedness of Highly Pathogenic Avian Influenza H5Nx Viruses Currently Circulating in Egypt and Some H5 Commercial Vaccines
Genetic and Antigenic Relatedness of Highly Pathogenic Avian Influenza H5Nx Viruses Currently Circulating in Egypt and Some H5 Commercial Vaccines Open
In the present study, samples were collected from wild and domestic waterfowls to detect currently circulating HPAI H5Nx viruses.All H5Nx detected in migratory ducks were characterized as HPAIV H5N8, clade 2.3.4.4b, while domestic waterfow…
View article: Investigation of suspected Newcastle disease (ND) outbreaks in Egypt uncovers a high virus velogenic ND virus burden in small-scale holdings and the presence of multiple pathogens
Investigation of suspected Newcastle disease (ND) outbreaks in Egypt uncovers a high virus velogenic ND virus burden in small-scale holdings and the presence of multiple pathogens Open
Highly contagious Newcastle disease (ND) is associated with devastating outbreaks with highly variable clinical signs among gallinaceous birds. In this study we aimed to verify clinical ND suspicions in poultry holdings in Egypt suffering …
View article: Molecular pathogenic and host range determinants of reassortant Egyptian low pathogenic avian influenza H9N2 viruses from backyard chicken
Molecular pathogenic and host range determinants of reassortant Egyptian low pathogenic avian influenza H9N2 viruses from backyard chicken Open
Since the introduction of H9N2 low pathogenic avian influenza virus in Egypt, it became an endemic disease causing considerable economic losses in different poultry sectors especially in the presence of other secondary bacterial and viral …
View article: Molecular pathogenic and host range determinants of reassortant Egyptian low pathogenic avian influenza H9N2 viruses from backyard chicken
Molecular pathogenic and host range determinants of reassortant Egyptian low pathogenic avian influenza H9N2 viruses from backyard chicken Open
Since the introduction of H9N2 low pathogenic avian influenza virus in Egypt, it became an endemic disease causing considerable economic losses in different poultry sectors especially in the presence of other secondary bacterial and viral …
View article: Novel real-time PCR-based patho- and phylotyping of potentially zoonotic avian influenza A subtype H5 viruses at risk of incursion into Europe in 2017
Novel real-time PCR-based patho- and phylotyping of potentially zoonotic avian influenza A subtype H5 viruses at risk of incursion into Europe in 2017 Open
Since November 2016, Europe witnesses another wave of incursion of highly pathogenic avian influenza (HPAI) A(H5) viruses of the Asian origin goose/Guangdong (gs/GD) lineage. Infections with H5 viruses of clade 2.3.4.4b affect wild bird an…