Articles
308 open-access articles · page 11 of 16
ArticlesPlant growth promoting fungi stimulate growth and confer protection against Bean yellow mosaic virus in faba bean
Mohsen M. Elsharkawy, Sara E. Hanbal, Samir A. Sidaros, Mohamed M. Elsawy, Ali H. Hamed
Background: Bean yellow mosaic virus (BYMV) is recognized as one of the most wide distributed virus disease affecting faba bean in Egypt. Objective: The aim of this study is to explore the efficiency of the plant growth promoting fungi (PGPF) of Penicillium si…
20 Aug 2021- Articles
Evaluation of Turkey humoral immune response to Avian Influenza and Turkey Rhinotracheitis viruses’ vaccines
Rana A. Rabiea, Mohamed Fawzy, Mohamed H. Khodeir, MokhtarM. EL-Tarabili
Background: Turkeys are susceptible to many virus diseases such as turkey rhinotracheitis (TRT) and avian influenza (AI) that affect their populations in a dramatic form. Successful control of these viral diseases depends on the implementation of well-designed…
20 Aug 2021 - Articles
Formulation and evaluation of inactivated lumpy skin disease virus vaccine using ISA 50 and ISA 206 adjuvants.
Youssef A. Elgharbawy, Mervat M. Ali, Ayman H. El-Deeb, Mohamed A. Shalaby
Lumpy skin disease (LSD) is one of the most serious livestock diseases in Egypt since 1988 when the disease spread widely all over the country. since that attenuated sheep pox virus (SPV) used for vaccination cattle flocks against LSD due to immunological rela…
20 Aug 2021 - Articles
Cytokines profile and antibody response of calves vaccinated with conventional inactivated Trivalent FMD vaccine
Abdelaziz A. Yassin, Ayman H. El Deeb, Abeer E. Mansour, Hussein A. Hussein
In the present study, eight (sero-negative for FMDV) native breed calves (6-12 months of age) were used to study the cytokine profile including IL-2, IL-4, IFN-γ and antibody response of calves vaccinated with conventional inactivated trivalent FMD vacci…
20 Aug 2021 - Articles
ISOLATION AND IDENTIFICATION OF LUMPY SKIN DISEASE VIRUS IN CATTLE IN KALUBEYA GOVERNORATE
Lamya A. F. Ateya, Said A. Ahmed, Mansour H. Ayman, Khamees K. Ashraf, Heba A. Abdel-Hady
Background: Lumpy skin disease virus (LSDV) is an infectious viral disease which is an important serious skin disease of cattle. LSDV was isolated from skin biopsies collected from cattle which are clinically infected at Kaluobia governorate. Objectives: This…
18 Aug 2021 - Articles
Isolation, pathotyping and genotyping of Newcastle disease virus from broiler chickens in Egypt
Ayman S. El-Habbaa, Gabr F. El-Bagoury, Samar F. El-Adaway, Susan S. El-Mahdy
Background: In Egypt, outbreaks of Newcastle disease (ND) have been occurring in vaccinated chickens with great economic losses. Objective: This work aimed for diagnosis and characterization of Newcastle Disease Virus (NDV) from infected broiler chickens in Eg…
18 Aug 2021 - Articles
Antigenic content of 500 HA units in H5N1 reassortant AI vaccine enhances protection and reduces shedding of HPAI H5N1 clade 2.2.1.2 in broiler chickens
Hussein A. Hussein, Maha Khedr, Reem A. Suliman, Marwa F. Mohamed, Mounir D. El Safty
Background: Egyptian poultry industry has suffered from high economic losses as a result of the wide spread of highly pathogenic H5N1. Determination of the optimal antigen content of avian influenza virus vaccines is urgent to reach protective antibody titers…
18 Aug 2021 - Articles
The co- infection of cucurbits with criniviruses and ipomoviruses: possible adverse effect on virus diagnosis and breeding for resistance
Aly M. Abdel-Salam
Backgrouns: Recently whitefly-transmitted viruses (WTV) have emerged as a major economic threat to the cucurbit industry in the Middle East and countries in the Mediterranean basin. Whitefly-transmitted viruses to cucurbits include viruses in the Begomovirus,…
18 Aug 2021 - Articles
Molecular characterization of foot and mouth disease virus (O-EA3) isolated during 2016 outbreak in Egypt
Muhammad G. Khodary, Ayman H. El-Deeb, Mohamed M. Emara, Othman E. Othman, Hussein A. Hussein
Background: In January 2016, several cases of clinical signs and mortalities suggested foot and mouth disease (FMD) outbreaks among cattle and buffalo herds in Egypt. This study aimed to investigate the contribution of Foot and Mouth Disease Virus (FMDV) and c…
18 Aug 2021 - Articles
Interfering of maternal derived antibodies with the protection of local inactivated reassortant H5N1 Avian influenza vaccines with antigenic content of 300 HA units in commercial broiler chickens
Maha M. Khedr, Reem A. Suliman, Marwa F. Mohamed, Mounir D. El Safty, Hussein A. Hussein
Background: Influenza virus is an Orthomyxovirus that known as one of the causes of significant numbers of natural infections and disease, mainly infecting the upper respiratory tract, in humans, domestic pigs, horses, and numerous bird species. Maternal deriv…
18 Aug 2021 - Articles
Effect of methanolic-extracted green tea on hepatitis A virus and its usage in clearing the virus from drinking Water
Dina N. Abd-Elshafy
Background: Hepatitis A virus (HAV) causes tens of millions of human infection annually worldwide. It usually spreads by the fecal-oral route and is transmitted from person-to-person through contaminated food or water. A number of travelers arriving from Egypt…
18 Aug 2021 - Articles
Standardization of Quality Control Protocol for Evaluation of Recombinant HVT-H5 Vaccine
Ola Youssef, EL-Deeb A.H.2 Nassif S.A, Ahmed A. El-Sanousi 2
Background: There is no international quality control protocol for evaluation of recombinant H5 vaccines had been established yet so, these vaccines are evaluated by applying the conventional QC tests such as identity, safety, purity, potency and efficacy that…
18 Aug 2021 - Articles
Circulation of FMD serotypes SAT2 (VII-Ghb-12), O (EA-3) and A (G-IV) in cattle population in Egypt, 2018
Dina A. Abdulrahman, Ayman H. EL-Deeb, Momtaz A. Shaheen, Hussein A. Hussein
Background: Foot and mouth disease virus (FMDV) is the causative agent of multiple outbreaks and severe economic losses in the cattle population since its introduction in Egypt. Although vaccination is practiced to control the disease, it is still endemic. Mor…
18 Aug 2021 - Articles
Incidence, serologic and molecular characterization of Potato virus S from commercial potato in Egypt
Salama M. El-Saghir
Background: In Egypt potato crop is affected heavily by a wide variety of viruses, viz. PVY, PLRV, and PVX. Potato virus S (PVS), family Betaflexiviridae; genus Carlavirus) is one of the most common potato (Solanum tuberosum L.) viruses found infecting potato…
18 Aug 2021 - Articles
Some molecular assays used for identity of Peste des Petits Ruminants (PPR) vaccines
Manar F. Seioudy, Magda M. Sayed, Ahmed A. El-Sanousi, Mohammed A. Shalaby
Background: Evaluation of Peste des petits ruminants (PPR) vaccine is a matter of concern to ensure releasing of safe, effective and potent product. Objective: To use of some molecular techniques as conventional reverse transcriptase polymerase chain reaction…
18 Aug 2021 - Articles
PHYLOGENETIC ANALYSIS AND PATHOGENECITY ASSESSMENT OF LOCALLY ISOLATED STRAIN OF HPAI VIRUS IN EGYPT IN 2016
Dalia M. Omar, Nermeen A. Marden, Lamiaa M. Gaafar, Elham A. El-ebiary, Khalid El-Dougdoug, Badawi Othman et al.
Background: Avian influenza viruses (AIV) circulating in Egypt since 2006 causing serious economic losses in poultry sector and human hazard although vaccination programs applied and other control measures. Objectives: The present study was designed for detect…
18 Aug 2021 - Articles
Biological and Molecular Characterizations for Identification of a Phytoplasma Associated With Lemon Witches’-Broom in Egypt
Rasha M. Mahrous, Ahmed K. El-Attar, Ahlam A. AlWatban, Sohair I. EL-Afifi, Nagwa M. Aref
Background: Phytoplasma Associated with Witches' broom disease (WB) is a very serious disease of citrus with a major limiting factor for lime production. Symptoms of Witches' broom were observed on limes in AL-Qalyubia governorate, Egypt. This study identified…
18 Aug 2021 - Articles
Genetic characterization of rabbit hemorrhagic disease virus from naturallyinfected rabbits in Sharkia governorate, Egypt
Naglaa F.S. Awad, Gamelat K.F. Kotb
Background: Since the first introduction of rabbit hemorrhagic disease virus (RHDV) in 1991, Egyptian authorities started a national vaccination program against the disease. However, RHDV clinical cases are still being reported. Objectives: This study aimed to…
18 Aug 2021 - Articles
Different culturing systems of IBV-Eg-F170-2015 strain of Egypt variant 2 infectious bronchitis virus
Ahmed A. Azab, Wesam H. Mady, Ali Zanaty, Mahmoud Samir
Background: Infectious bronchitis virus (IBV) is an acute contagious disease cause severe economic losses in poultry production worldwide. Virus isolation is the golden standard for IBV diagnosis so the aim of this study was comparing the different biological…
18 Aug 2021 - Articles
Identification, characterization and ultrastructure aspects of Alfalfa mosaic virus infecting potato (Solanum tuberosum L.) in Egypt
Maha A. El-Abhar, Moustafa A. Elkady, Khaled M. Ghanem, Hussieny A. Bosila
Background: Alfalfa mosaic virus (AMV) is only virus in the genus Alfamovirus and has very wide host range among weed and crop plants which produces a variety of symptoms. It can cause problems in potato in some regions where vectors easily move into potato fi…
18 Aug 2021