Explanipedia

Molecular detection of some zoonotic tick-borne pathogens in ticks collected from camels (Camelus dromedarius) as hosts and wild rodents as potential reservoirs Open

Ayat Yousery, Doaa Soliman, A. A. Samy, Ahmad M. Allam, Mona G Shaalan , et al. · 2024

Molecular detection of some zoonotic tick-borne pathogens in ticks collected from camels (Camelus dromedarius) as hosts and wild rodents as potential reservoirs Open

Ayat Yousery, Doaa Soliman, A. A. Samy, Ahmad M. Allam, Mona G Shaalan , et al. · 2023

The authors have requested that this preprint be removed from Research Square.

Trial for Preparation and Evaluation of Autogenous Killed Vaccine Against Some Locally Isolated Strains of Salmonella enterica from Chickens in Egypt Open

Nagwa S. Rabie, Hazem Mohammed Ibrahim, A. M. Ghetas, Hanaa S. Fedawy, Dalia M. Sedeek , et al. · 2023

A trivalent killed Salmonella vaccine was developed and its efficacy was evaluated in specific pathogen free (SPF) chickens. One hundred and forty SPF chickens divided to two groups were used to evaluate the efficacy of our vaccine. Vaccin…

Environmentally friendly mesoporous SiO2 with mixed fiber/particle morphology and large surface area for enhanced dye adsorption Open

A. A. Samy, A. M. Ismail, Heba Ali · 2023

Rice straw is made up of hemicelluloses (19–27%), celluloses (32–47%), lignin (5–24%), and ash (13–20%), which are all agricultural waste. Rice straw ash is considered a green/eco-friendly source of silicon dioxide (SiO 2 ). This study foc…

Multiple Drug Resistance Salmonella and Antibiotic Residues in Egyptian Animal Products Open

A. A. Samy, Amany A. Arafa, Riham H. Hedia, Eman S. Ibrahim · 2022

Food of animal origin is considered a primary source of foodborne diseases. The misuse of antibiotics to treat and control many bacterial diseases in farm animals has led to multiple antibiotic-resistant pathogens in contaminated food that…

Isolation and Serological Identification of Current Salmonella Species Recovered from Broiler Chickens in Egypt Open

Nagwa S. Rabie, Hanaa S. Fedawy, Dalia M. Sedeek, Mohamed Bosila, Abdelbaki Mm , et al. · 2022

This study was carried out to identify and serotype Salmonella (S.) species from suspected broiler chickens and healthy chickens in seven Egyptian governorates (KafrEl-sheikh, Fayuom, Qalubia, Menofiya, Garbia, Cairo, and Giza). Five hundr…

Green Synthesis of High Impact Zinc Oxide Nanoparticles Open

A. A. Samy, Ahmed El-Sherbiny, A.A. Menazea · 2019

This study was conducted as an attempt to reach the best method to synthesis zinc oxide nanoparticles (ZnONPs) using chemical methods. ZnO nanoparticles was prepared using Sol-Gel method from zinc chloride (ZnCl2) and sodium hydroxide (NaO…

Use of molecular biology tools for rapid identification and characterization of Pasteurella spp. Open

Ashraf Mohamed Abbas, Dalia Mohammed Adb-Elmoaty, Eman Sa Zaki, Elham El-Sergany, Nadine Adel El-Sebay , et al. · 2018

PCR and REA could confirm the identity of PM and provide a rapid and reliable characterization in comparison with biochemical analysis and conventional serotyping that may take up to 2 weeks. Hence, they can reduce the time needed for poly…

Phenotypic and genotypic characterization of methicillin resistant Staphylococcus aureus. Open

Fawzy R. El Seedy, Hala Sayed Hassan Salam, A. A. Samy, Eman A. Khairy, Shimaa T. Omara , et al. · 2017

Food contaminated with multiple antibiotic-resistant S.aureus can be a major threat to the public health. The purpose of this study was to isolate S.aureus from different food sources, determine their antimicrobial susceptibility as well a…

Phenotypic and genotypic characterization of methicillin resistant Staphylococcus aureus. Open

Fawzy R. El Seedy, Hala Sayed Hassan Salam, A. A. Samy, Eman A. Khairy, Shimaa T. Omar , et al. · 2017

Food contaminated with multiple antibiotic-resistant S.aureus can be a major threat tothe public health. The purpose of this study was to isolate S.aureus from different foodsources, determine their antimicrobial susceptibility as well as …

Polymerase chain reaction detection of genes responsible for multiple antibiotic resistance Staphylococcus aureus isolated from food of animal origin in Egypt Open

Fawzy R. El Seedy, A. A. Samy, Hala Sayed Hassan Salam, Eman A. Khairy, Aya A. koraney. · 2017

Contaminated foods of animal origin may represent a source of MDR S. aureus that can be a major threat to public health.

Matrix-assisted laser desorption-ionization-time-of-flight mass spectrometry as a reliable proteomic method for characterization of Escherichia coli and Salmonella isolates Open

Waleed S. Shell, M.L. Sayed, Fatma Mohamed Gad Allah, Mohamed Gamal El‐Din, Afaf Ahmed Khder , et al. · 2017

Our study demonstrated that Bruker MALDI-TOF MS Biotyper is a reliable rapid and economic tool for the identification of Gram-negative bacteria especially E. coli and Salmonella which could be used as an alternative diagnosti…

InvA Gene Sequencing of Salmonella typhimurium Isolated from Egyptian Poultry Open

Nadine Adel El-Sebay, Hala M. Abu Shady, Seham A. El-Zeedy, A. A. Samy · 2017

Background and Objective: Salmonella typhimurium is one of the most important zoonotic pathogenic microorganisms affecting man and animals, the traditional phenotypical identification of Salmonella involving microbiological enrichment and …

Using real-time polymerase chain reaction as an alternative rapid method for enumeration of colony count in live Brucella vaccines Open

Waleed S. Shell, M.L. Sayed, A. A. Samy, Ghada Mohamed Al-Sadek, Gina Mohamed Mohamed Abd El-Hamid , et al. · 2017

Results concluded that RT-qPCR was relatively sensitive compared to traditional bacterial colony count of these vaccines.

Molecular Divergence of Staphylococcus Aureus Isolated from Pork Byproducts Based on Coagulase Gene Polymorphism and The Presence of Enterotoxigenic genes Open

Ashraf S. Hakim, A. A. Samy, Sohad M. Dorgham, Shimaa T. Omara, E. A. Elgabry · 2017

Background: Pork by-products are appeared to be a source of consumer coagulase positive S. aureus strains food poisoning. Material and Methods: The genetic lineage of coagulase positive Staphylococcus aureus (coa) recovered from 20 importe…

Identification of Staphylococcus aureus Causing Bovine Mastitis using MALDI-TOF Fingerprinting Open

Waleed S. Shell, M.L. Sayed, Aatia A. El-Geda, Ghada M. El Sade, A. A. Samy , et al. · 2017

Background: Reliable and rapid methods for identification of clinical bacterial isolates are mainly dependent on phenotypic and genotypic characteristics of the bacteria.As an alternative identification methods, mass spectral (proteomics) …

Minimum bactericidal concentration of chemically synthesized silver nanoparticles against pathogenic Salmonella and Shigella strains isolated from layer poultry farms Open

Shimaa T. Omara, M.F. Zawrah, A. A. Samy · 2017

Physical, Mechanical and Antimicrobial Evaluations of Physically Crosslinked PVA/Chitosan Hydrogels Containing NanoparticlesAhmed Saad Montaser

Efficiency of Different Preparations of Rapid Slide Agglutination Antigens for the Diagnosis of Bovine and Ovine Brucellosis Open

Nabila A. Ghazy, Wafaa R. Abdel Aziz, Waleed S. Shell, A. A. Samy · 2016

Background: Brucellosis is an important zoonotic bacterial disease of global health importance affecting different animals and man.Brucellosis control and eradication procedures are highly depending on accurate diagnostic tools and effecti…

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