Articles
308 open-access articles · page 10 of 16
ArticlesMolecular characterization of IBDV in Egypt, 2015
Aml S. El-Saadany, Ayman H. El-Deeb, Hussien A. Hussien
Background: Infectious bursal disease virus (IBDV) remerged frequently in Egypt, causing serious economic losses. In Egypt very virulent (vv) IBDV strains are annually reported since its first introduction in 1989. Variant IBDV strains were also reported in fe…
20 Aug 2021- Articles
Serosurveillance and Molecular Characterization of H9N2 Avian Influenza Virus in Lebanon
Riham H. Bassam, Hussein A. Hussein, Mohamed M. Amer, Ahmed A. El-Sanousi
Background: Since the first report concerning the existence of avian influenza subtype H9N2 (AI H9N2) in 2006 in Lebanon; a lot of pathological changes and mortalities were seen among chicken flocks suggesting the influence of the AI H9N2 virus. Objective: thi…
20 Aug 2021 - Articles
Molecular diagnosis of Avian Influenza Virus from different Avian species
Mohamed F. ElKersh, Fatma M. Abdalla, Gamilat K. Farg, Soad A. Nasef, Ahmed A. Ali
Background: The AIV is one of the most important poultry viral infections that represent one of the greatest concerns for public health. AIV classified within Orthomyxoviridae that is highly mutating virus. AIV was founded in Egypt since 2006. Control and prev…
20 Aug 2021 - Articles
Detection and molecular identification of phytoplasma associated with Gazania in Egypt
Shimaa M. Gad, Ahmed A. Kheder, Mohamed A. Awad
Background: Phytoplasmas a wall-less microorganism belongs to Class Mollicutes cause diseases in several commercial ornamental plants, leads to serious economic losses all over the world. During 2017-2018, gazania showing phyllody, yellowing, proliferation, vi…
20 Aug 2021 - Articles
H9N2 AI and NDV shedding pattern in SPF and commercial layer vaccinated chicken with trivalent vaccine containing H9N2 AI, LaSota, classical M41 and var 2 IB viruses challenged at 1, 3 and 7 months post vaccination
Hanan Sayed, Mohamed S. Madkour, Hussein A. Hussein, Mounir Mohamed Elsaft, Marwa F. El saied, Ahmed A El-Sanousi
Background: Prolonged immune protection for H9N2 and Newcastle in layer chicken rearing is an important issue. Objective: To evaluate the protection duration for H9N2 and NDV post vaccination by inactivated trivalent (H9N2, LaSota, M41 and Var2 IB) vaccine bas…
20 Aug 2021 - Articles
Shedding pattern of classical and variant strain of IB challenge virus in SPF and commercial layer vaccinated chicken with trivalent vaccine containing H9N2 AI, LaSota, classical M41 and var 2 IB viruses
Hanan Sayed, Mohamed S. Madkour, Hussein A. Hussein, Ahmed A El-Sanousi
Background: Prolonged immune protection for classic and variant IBV in layer chicken rearing is an important issue. Objective: Evaluation of the protection duration for IBV (M41 and Var2) post vaccination by inactivated combined (H9N2, LaSota, M41 and Var2 IB)…
20 Aug 2021 - Articles
Identification of Cucumber Mosaic Virus Infecting Some Vegetable Crops in Saudi Arabia
Ahmed M. Soliman
Background: Cucumber mosaic virus (CMV) is one of the widest spread viruses in the world and has the largest host range of plants. Aim: The present study was conducted to identify four Saudi CMV isolates (cucumber, tomato, pepper and watermelon) using biologic…
20 Aug 2021 - Articles
Plant 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
Efficacy of the sterile fungus GU23-3 on growth characters of cucumber plants and resistance against Papaya ring spot virus
Shimaa A. Khalaf, Mohsen M. Elsharkawy, Samir A. Sidaros, Shawky A. El Kewey, Ayman F. Omar, Ali Hamed
Background: Papaya ring spot virus (PRSV) is a major threat to the production of cucurbits all over the world. The sterile fungus GU23-3 is a rhizosphere fungus conferring positive effects on plant growth and health.. Objective: The aim of this study is to eva…
20 Aug 2021 - Articles
Induction of Tomato ring spot virus resistant plants using the chemical mutagens (NaN3 and EMS)
Huda S. Darwish, Om-hashem M. El-Banna, Mohamed S. Abbas, Hoda M. Waziri, Maisa A. Awad
Background: Tomato (Solanum lycopersicon) is affected by many biotic and abiotic stresses which became major limiting factors for growth, fruit yield quality and quantity. Tomato ringspot virus (ToRSV) is considered one of the most devastating members of the g…
20 Aug 2021 - Articles
In process metagenomic analysis of LSDV harvest for quality control
Hadeer M. Mossa, Ausama A. Yousif, Emad A. Aboelsoud, Mahmoud El Gamal, Ahmed El- Sanousi
Background: Vaccination against lumpy skin disease is carried out by heterologous sheep pox vaccine (SPPV) giving un-satisfiable results and incomplete protection in vaccinated cattle, since that it was a must to produce a homologues vaccine for LSDV. Methods:…
20 Aug 2021 - Articles
Comparative growth kinetic of Egyptian LSDV isolate in Vero and MDBK cell line
Mohamed M. Mashaly, Ayman H. El-Deeb, Momtaz A. Shahein, Hussein A. Hussein
Background: Lumpy skin disease outbreaks were observed in different governorates of Egypt affecting cattle throughout the year and are still present. The progressive shift of the outbreak in Egypt during 2018 causing severe losses in cattle population despite…
20 Aug 2021 - Articles
Process development of nano emulsion Foot and mouth disease virus vaccine
Soad, E. Elsayed, Mohammed A. Shalaby, Ausama A. Yousef, Abu bakr A. Agor, Sherouk E. Aly
Background: Foot and mouth disease is a highly contagious disease of livestock that is endemic in Egypt with severe economic impact. The main method of control is through vaccination of the livestock with a potent vaccine. Objective: Process development of the…
20 Aug 2021 - Articles
Ultrasonic dispersion of aluminum hydroxide-adjuvanted Rift Valley Fever vaccine enhances formula characteristics and immune response
Shourok E. Aly, Karim Zaki, Soad E. Elsayed, M. Elgamal, Ausama A. Yousef, Mohamed A. Shalaby
Background: Rift Valley Fever (RVF) is a mosquito-borne viral zoonotic disease that is endemic in Africa and the Arabian Peninsula. Outbreaks of RVF resulted in severe losses to the animal industry and major threats to the public health. Control of RVF in Egyp…
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
Molecular Characterization of Alfalfa Mosaic Virus and Its Effect on Basil (Ocimum basilicum) Tissues in Egypt
Ahmed K. El-Attar, Samah A. Mokbel, Om-Hashem M. EL-Banna
Background: Various isolates of Alfalfa Mosaic Virus (AMV) found throughout the world affect a wide variety of aromatic and medical plants. In March 2016, several symptoms of leaf necrosis, bright yellow mosaic and malformation of leaves suggested viral infect…
20 Aug 2021 - Articles
Evaluation of NDV4 thermo stable feed-based vaccination effects on rural chicken productivity in Adamawa State, Nigeria
Wesley D. Nafarnda, Japhet H. Baraya, Olatunde H. Olabode, Malang K. Simon
Background: Newcastle disease (ND) has been documented as one of the major viral diseases that hampers poultry productivity. Oral Newcastle Disease (ND) vaccination has been documented as a method for control of the disease with varied effects in scavenging ru…
20 Aug 2021 - Articles
Molecular Characterization of Cucumber Mosaic Virus and Structural Changes of Infected Sugar beet Plants
Samah A. Mokbel, Eman A. Ahmed, Hanan F. El-Kammar, Ahmed A. Kheder
Background: Cucumber mosaic virus (CMV) is known to occur in sugar beet plants in Egypt and may produce severe damage to infected plants. However, studies on the effect of the CMV on the cellular and internal structures of sugar beet leaves were rare. Methods:…
20 Aug 2021