Issue · 2016
Vol.13, Iss. 1
8 articles · pp. 1-96 · All issues →
ArticlesEvolution of nonstructural (NS1) gene of Egyptian high pathogenic H5N1 Avian influenza viruses
Amany Adel, Abdelsatar Arafa, Hussein A. Hussein, Ahmed El-Sanousi
In the present study, 24 H5N1 viruses were selected on the basis of the phylogenetic analysis of the HA gene sequences to study the genetic evolution of the NS1 gene of such viruses. The viruses were isolated from chickens and ducks in both live bird markets a…
16 Aug 2021- Articles
Serological evidence for the presence of infectious avian hepatitis E virus among chicken flocks in Egypt
Serageldeen Sultan, Nabila Osman
This report on the prevalence of avian hepatitis E virus (avian HEV) among chicken flocks in Egypt. A total of 510 serum samples were collected from broiler breeder (n=191), layer breeder (n=235) and commercial broiler chickens (n=84) from different farm flock…
16 Aug 2021 - Articles
Inhibitory effect of cyanobacteria byproducts on Bean yellow mosaic virus on faba bean plant
Radwa M. Shafie, Soha S. M. Mostafa
The inhibitory effect of culture filtrates and fresh biomass of three cyanobacteria isolates i.e., Nostoc muscorum, Spirulina platensis and Oscillatoria sp. was studied, individually or in a mixture, against Bean yellow mosaic virus (BYMV) infection on Vicia f…
16 Aug 2021 - Articles
Effect of vaccination with Chicken anemia virus vaccines on immune response to inactivated H5 vaccine
Hanan M. El-Zahed, Hanaa A. Mostafa, Nermeen M. El Sayed, Lamiaa M. Omar
In this study two groups of nine week old Hubbard chickens were vaccinated with two different commercial live attenuated Chicken anemia virus (CAV) vaccines. One was vaccinated with 26 P4 strain vaccine subcutaneously and the other was vaccinated with Cux stra…
16 Aug 2021 - Articles
Molecular evaluation of Peste des petits ruminants (PPR) vaccine
Manar F. Seioudy, Magda M. Sayed, Ahmed A. El-Sanousi, M. A. Shalaby
Peste des petits ruminants (PPR) is a highly contagious, economically important viral disease of sheep and goats with high morbidity and mortality rates. A live attenuated PPR vaccine has been produced in Veterinary Serum and Vaccines Research Institute (VSVRI…
16 Aug 2021 - Articles
Ultrastructural changes in tomato plant induced by phytoplasma infection and attempts for its elimination using tissue culture techniques
Eman A. Ahmed, Osama Y. shalaby, Emad F. Dwidar, Samah A. Mokbel, Ahmed K. El-Attar
Light microscopy was used to compare the anatomical characteristics of stem, flower petiole and leaves of infected tomato with phytoplasma with healthy ones in order to reveal anatomical modifications caused by the infection process. The results obtained showe…
16 Aug 2021 - Articles
Biological, serological and inhibition activity of Tomato spotted wilt virus isolated from tomato plants in Taif region, Saudi Arabia
Manal A. El-Shazly1. M. I .Kobeasy2and Sarah H . Altalhi
Tomato spotted wilt virus (TSWV) has been isolated from naturally infected tomato plants collected from Taif governorate, Saudia Arabia for the first time. Observed symptoms circumvented mosaic, curling, bronzing and/or purpling, chlorosis and necrotic spot on…
16 Aug 2021 - Articles
Abundance and Variation of Virulence of Rhizobiophages Isolated from the Rhizosphere of Some Legume Plants in Egypt
Ramy A. Qabel, Tarek F. El-Arabi, Adel A. Shoukry, Hassan H. Elsebaay, Abdel-Aziz F. El-Hamahmy
The efficiency of Rhizobium bacteria to form a successful symbiosis with legume plants is governed by many factors. The foremost factor that could affect the rhizobia is bacteriophage infection. In this context, this study aimed to investigate the abundance of…
16 Aug 2021