قسم الأحياء الدقيقة والطفيليات

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حول قسم الأحياء الدقيقة والطفيليات

حقائق حول قسم الأحياء الدقيقة والطفيليات

نفتخر بما نقدمه للمجتمع والعالم

74

المنشورات العلمية

13

هيئة التدريس

من يعمل بـقسم الأحياء الدقيقة والطفيليات

يوجد بـقسم الأحياء الدقيقة والطفيليات أكثر من 13 عضو هيئة تدريس

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د. اسامة رجب محمد الواعر

اسامة الواعر هو احد اعضاء هيئة التدريس بقسم الاحياء الدقيقة والطفليات بكلية الطب البيطري. يعمل السيد اسامة الواعر بجامعة طرابلس كـأستاذ مشارك منذ 2012-06-05 وله العديد من المنشورات العلمية في مجال تخصصه وهو خبير دولي سابق في مجال الثروة الحيوانية منذ 2011 حتي 2017 كمنسق اقليمي لبرنامج الحوكمة البيطرية الاوروبي الافريقي وهو رئيس الجمعية الليبية العلمية للاطباء البيطرين ورئيس قسم العلاقات الثقافية والتعاون الدولي بكلية الطب البيطري ومنسق الدراسات العليا بقسم الاحياء الدقيقة والطفيليات بالكلية شغل عدة مناصب منها مدير مكتب اعضاء هيئة التدريس بالكلية ورئيس قسم الاستشارات والبحوث بالكلية ورئيس لجنة الامتحانات ورئيس وحدة الابحاث للحشرات الناقلة للامراض وعدة مناصب اخرى

منشورات مختارة

بعض المنشورات التي تم نشرها في قسم الأحياء الدقيقة والطفيليات

Occurrence and antibiogram of multidrug-resistant Salmonella enterica isolated from dairy products in Libya

Background and Aim: Foodborne illnesses are a serious challenge to human health and the economic sector. For example, salmonellosis remains a burden in developed and developing nations. Rapid and reliable molecular methods to identify Salmonella strains are essential for minimizing human infection. This study aimed to identify Salmonella spp. in raw milk and dairy products using conventional and molecular techniques and to test the antibiotic susceptibility of the isolated strains. Materials and Methods: One hundred and thirty-one milk and dairy product samples were randomly collected from different localities in Libya. Samples were examined for the presence of Salmonella by conventional culture techniques, including cultivation in Rappaport-Vassiliadis broth and streaking on xylose lysine deoxycholate agar. Identification also used polymerase chain reaction and partial sequencing of 16S rDNA. Twenty-four antibiotics were used for the examination of antimicrobial resistance of Salmonella spp. isolates with the agar disk diffusion method (Kirby–Bauer technique). Multi-antibiotic resistance index and antibiotic resistance index (ARI)for Salmonella enterica isolates were calculated. Results: Twenty-one of 131 samples (16%) were positive for Salmonella spp. recovered from 9 (16%), 2 (11%), 4 (22.2%), and 6 (46%) samples of raw cow milk, fermented raw milk, and fresh locally made soft cheeses, Maasora and Ricotta), respectively. Samples of ice cream, milk powder, and infant formula showed no Salmonella spp. contamination. Only 9 of 21 (42.8%) isolates were confirmed as S. enterica by partial sequence 16S rDNA analysis. All isolates were resistant to amoxycillin, bacitracin, penicillin G, lincomycin, vancomycin, clindamycin, and cloxacillin with an ARI of 0.042. In contrast, all tested strains were sensitive to levofloxacin, doxycycline, and ciprofloxacin. In addition, all of the tested isolates (100%) were resistant to more than one antibiotic. Conclusion: This study demonstrated the applicability of molecular techniques, compared with conventional methods, as preferable for the identification of Salmonella in milk and dairy products and thus reduction of milk-borne transmission to the consumers. From the view of public health, isolation and identification of Salmonella multidrug-resistant strains from raw cow's milk and locally prepared dairy products sold in the Libyan markets indicate the need to improve the handling and processing of milk and dairy products to minimize the prevalence of Salmonella, one of the most important foodborne microorganisms that cause food poisoning.
Ibrahim Eldaghayes(5-2022)
Publisher's website

Outbreaks of Foot-and-Mouth Disease in Libya and Saudi Arabia During 2013 Due to an Exotic O/ME-SA/Ind-2001 Lineage Virus

Foot-and-mouth disease viruses are often restricted to specific geographical regions and spread to new areas may lead to significant epidemics. Phylogenetic analysis of sequences of the VP1 genome region of recent outbreak viruses from Libya and Saudi Arabia has revealed a lineage, O-Ind-2001, normally found in the Indian subcontinent. This paper describes the characterization of field viruses collected from these cases and provides information about a new real-time RT-PCR assay that can be used to detect viruses from this lineage and discriminate them from other endemic FMD viruses that are co-circulating in North Africa and western Eurasia.
Ibrahim Eldaghayes(12-2014)
Publisher's website

Familial Clustering and Re-infection with 2019 Novel Coronavirus (2019-nCoV, SARS-CoV-2) in the Libyan Community

Since its emergence as a major cause of coronavirus pneumonia, SARS-CoV-2 has spread quickly all over the world. The pandemic has affected all aspects of life and continues to spread despite the stringent control measures. Meanwhile, scientists all around the world have been scrambling to ascertain how the virus spreads and find out the effective ways to put this outbreak quickly under control, focusing on both persistent strict domestic interventions and vigilance against exogenous imported cases (1,2). Several cases of family clusters have been reported and evidence of person-to-person transmission has been confirmed. Indicating the importance of early detection and isolation of infected patients (3,4). Hence then special caution is needed for asymptomatic patients particularly for family members.
Daw MA, Ahmed MO, ET AL.(1-2021)
Publisher's website