A5041395482- Viral gastroenteritis research and epidemiology
- Animal Virus Infections Studies
- Virology and Viral Diseases
- Vector-Borne Animal Diseases
- Viral Infections and Vectors
- Plant Virus Research Studies
- Influenza Virus Research Studies
- Herpesvirus Infections and Treatments
- Poxvirus research and outbreaks
- Animal Disease Management and Epidemiology
- Hepatitis Viruses Studies and Epidemiology
- Viral Infectious Diseases and Gene Expression in Insects
- Identification and Quantification in Food
- Viral Infections and Immunology Research
- Respiratory viral infections research
- Genital Health and Disease
- Insect symbiosis and bacterial influences
- Cancer-related molecular mechanisms research
- Carcinogens and Genotoxicity Assessment
- Mycotoxins in Agriculture and Food
- Cynara cardunculus studies
- Viral Infections and Outbreaks Research
- Animal health and immunology
- Bacteriophages and microbial interactions
- Transgenic Plants and Applications
Cairo University
2015-2025
King Faisal University
2013-2025
In the last 5 years, frequent outbreaks of infectious bronchitis virus (IBV) are observed in both broiler and layer chicken flocks Kingdom Saudi Arabia (KSA) spite extensive usage vaccines. The IBV is a widespread avian coronavirus affecting vaccinated unvaccinated attributed to significant economic losses, around globe. present study, 58 (
Background and Aim: Fowl cholera, caused by multidrug-resistant (MDR) Pasteurella multocida type A, poses a significant threat to chicken production globally. This study investigates the potential of ethanolic extracts from Wild Egyptian Artichoke (WEA) (Cynara cardunculus L. var. sylvestris) modulate virulence-associated genes provide an alternative control strategy. Materials Methods: A total 160 tissue samples diseased chickens were collected analyzed. Phenotypic, biochemical (via Vitek 2...
During the period from 2015 to 2017, frequent outbreaks of inclusion body hepatitis (IBH) were observed in broiler chickens and falcons Saudi Arabia. Fifty samples collected both species. The histopathological examination polymerase chain reaction confirmed IBH infection eight (five three falcons). genomic sequence phylogenetic analysis based on nucleotide amino acid sequences strains, reference fowl aviadenoviruses (FAdVs) field viruses available Genbank revealed that all investigated FAdVs...
Studies have indicated variations in the degree of efficacy commercial disinfectants commonly used poultry production facilities. An adequate method vitro testing was to compare some these while them conditions similar those Five commercially available were tested against 7 selected bacterial, fungal and viral isolates. The obtained results that, most disinfectant products effective at manufacturer recommended level within 30 min contact time when absence organic matter. However, matter...
Camel contagious ecthyma (CCE) is an important viral disease of camelids caused by a poxvirus the genus parapoxvirus (PPV) family Poxviridae. The has been reported in west and east Sudan causing economical losses. However, PPVs that cause camels have not yet subjected to genetic characterization. At present, PPV CCE cannot be properly classified because only few isolates genetically analyzed. PCR was used amplify B2L gene directly from clinical specimens collected dromedary affected with...
Pox and pox-like diseases of camels are a group exanthematous skin conditions that have become increasingly important economically. Three distinct viruses may cause them: camelpox virus (CMLV), camel parapox (CPPV) camelus dromedary papilloma (CdPV). These often difficult to differentiate based on clinical presentation in disease outbreaks. Molecular methods such as PCR targeting species-specific genes been developed used identify these diseases, but not simultaneously single tube. Recently,...
Aim:The aim of this study was to demonstrate the genomic features Meq gene Marek's disease virus (MDV) recently circulating in Saudi Arabia (SA).Materials and Methods: Two poultry flocks suffering from mortalities visceral tumors were presented Veterinary Teaching Hospital, King Faisal University, SA.Subjected different diagnostic procedures: Case history, clinical signs, necropsy as well polymerase chain reaction followed by sequence analysis.Results: suggestive MDV infection.The...
ZH501 strain of Rift valley fever virus (RVFV) was originally isolated from a human patient during the outbreak 1977 in Egypt.This used since 1980 for preparation an inactivated RVF vaccine at Veterinary Serum and Vaccine Research Institute (VSVRI), Egypt.Two subpopulations with single nucleotide polymorphism (A/G) position 847 Gn gene M segment have been described.This substitution affected significantly RVFV virulence mouse model.In this report, genetic makeup ZH501-VRVSI stock analyzed...
Newcastle disease virus (NDV), Infectious bronchitis (IBV) and H9N2 avian influenza (AIV) are the most significant respiratory pathogens. Several outbreaks have been reported frequently in Saudi Arabia despite of intensive use vaccination programs. Ten broiler flocks suffering from complicated were subjected to necropsy samples collected for molecular identification involved viruses pathogenic bacterial infections. Seven out ten positive single or combined viral infection. The seven HA test....
During 2007, two outbreaks of avian influenza virus (AIV) in backyard and commercial ostrich flocks were first reported the Kingdom Saudi Arabia (KSA). The infected ostriches suffered from depression, anorexia, diarrhea some exhibited sudden death. A rapid AIV-group antigen detection real-time reverse-transcription PCR (rtRT-PCR) initially performed on cloacal tracheal swabs collected diseased birds. Pools positive-tested for each flock utilized isolation specific-pathogen-free embryonating...
Diarrhea in newborn calves as well adult dromedary camels is considered the most serious constrains of camel production. It recorded Eastern Province Saudi Arabia to be very high, therefore, it necessary investigate role certain pathogenic agents. In present study, group A rotavirus was detected 5/50 (10%) and 6/50 (12%) diarrheic samples collected from one- three-month-old using immune chromatographic ELISA techniques, respectively. The characteristic wheel-like morphology particles...
Hybridomas that secreted antibodies against aflatoxin B1 for multiple uses were prepared using a unique immunization schedule. Aflatoxin B1-BSA conjugate was used of Balb/c mice. Spleen cells harvested from the hyper immunized mice to be fused with myeloma cell line (P3NS1) polyethylene glycol 3000, 50% concentration as fusogenic agent. The produced hybridomas selected HAT selective medium replaced by complete HT medium. From 10 th day after fusion, wells contain colonies covering 30% or...
Recent studies have demonstrated that cancer cells can elude immune by creating a sanctuary within the tumor’s microenvironment. Large amounts of immune-suppressing signaling proteins be expressed cells. One most important mechanisms in this system is suppression caused tumors and modulation checkpoint. The checkpoint modulated both programmed cell death protein 1 (PD-1) its ligands, ligand (PD-L1) PD-L2. Non-coding RNAs (ncRNA), including more well-known microRNAs (miRNAs), long non-coding...
Infectious Bronchitis Virus (IBV) is a highly contagious pathogen that causes serious illness with global circulation. While there extensive data available on the virus’s existence and transmission in commercial chickens Saudi Arabia, lack of such information regarding guineafowls. Therefore, this study aimed to investigate possible IBV infection among guineafowls Al-Hassa Governorate Eastern Province, Arabia. Oropharyngeal cloacal swabs were collected from several unvaccinated flocks guinea...
Infectious bursal disease (IBD) is caused by a virus related to the family Birnaviridae. The worldwide pathogen and causes immunosuppression great losses in broiler flocks. In this study, molecular characterization of two Saudi Arabian IBDVs (IBD01/14/SA IBD02/14/SA) was carried out reverse transcriptase polymerase chain reaction (RT-PCR) partial sequence hypervariable region VP2 gene. Nucleotide sequences 740-bp PCR product isolates were compared with corresponding nucleotide 56 reported...