Prof. Khalifa Sifaw Ghenghesh, PhD - Independent Researcher

Prof. Khalifa Sifaw Ghenghesh

PhD

Independent Researcher

Cairo | Egypt

Additional Specialties: Medical Microbiology

Prof. Khalifa Sifaw Ghenghesh, PhD - Independent Researcher

Prof. Khalifa Sifaw Ghenghesh

PhD

Introduction

Primary Affiliation: Independent Researcher - Cairo , Egypt

Additional Specialties:


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Publications

24Publications

289Reads

632Profile Views

92PubMed Central Citations

ANTHRAX: A REVIEW

Jamahiriya Med J. 2002; 2 (1): 17-23.

Jamahiriya Medical Journal

ABSTRACT:

Anthrax is a zoonotic disease that affects mainly large domesticated animals and caused by the bacterium Bacillus anthracis. Man acquires the disease accidentally through contact with infected animals or their products, often by the cutaneous route and only rarely by the respiratory or gastrointestinal routes. B. anthracis is on the top of the list of agents used in biological weapons programs in many countries. Recent events that occurred in mid-September last year in United States involving the intentional distribution of B. anthracis spores through postal system has resulted in a worldwide interest in anthrax. This article was intended to give a fair idea on the causative agent and its epidemiology, determinants of pathogenicity, clinical manifestations, clinical and laboratory diagnosis, treatment, and prevention and control of the disease.


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January 2019
4 Reads

Prevalence of Entamoeba histolytica, Giardia lamblia, and Cryptosporidium spp. in Libya: 2000-2015.

Libyan J Med 2016 29;11:32088. Epub 2016 Jun 29.

Faculty of Medicine, University of Tripoli, Tripoli, Libya.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4929352PMC
http://dx.doi.org/10.3402/ljm.v11.32088DOI Listing
January 2017
10 Reads
2 Citations

Carbapenem-resistant gram-negative bacilli in Tripoli, Libya.

Am J Infect Control 2016 Oct 27;44(10):1192-1194. Epub 2016 Jul 27.

El-Nakheel Compound, Cairo, Egypt. Electronic address:

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http://dx.doi.org/10.1016/j.ajic.2016.04.245DOI Listing
October 2016
15 Reads
2.210 Impact Factor

Aeromonas in Arab countries: 1995-2014.

Comp Immunol Microbiol Infect Dis 2015 Oct 1;42:8-14. Epub 2015 Aug 1.

Faculty of Medicine, University of Tripoli, Tripoli, Libya.

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http://dx.doi.org/10.1016/j.cimid.2015.07.002DOI Listing
October 2015
12 Reads
2.020 Impact Factor

Genospecies and virulence factors of Aeromonas species in different sources in a North African country

Libyan J Med 2014, 9: 25497 - http://dx.doi.org/10.3402/ljm.v9.25497

Libyan Journal of Medicine

Introduction: Aeromonads of medical importance have been reported from numerous clinical, food, and water sources, but identification of genospecies and virulence factors of Aeromonas species from countries in North Africa and the Middle East are few. Methods: In total 99 Aeromonas species isolates from different sources (diarrheal children [n23], nondiarrheal children [n16], untreated drinking water from wells [n32], and chicken carcasses [n28]) in Tripoli, Libya, were included in the present investigation. Genus identification was confirmed by biochemical analysis, and genospecies were determined using a combination of 16S rDNA variable region and gyrB sequence analysis. Polymerase chain reaction (PCR) was used to detect genes encoding toxins from 52 of the isolates. Results: We identified 44 isolates (44%) as A. hydrophila (3 [3.0%] subspecies anaerogenes, 23 [23%] subspecies dhakensis, and 18 [18%] subspecies ranae); 27 isolates (27%) as A. veronii; 23 isolates (23%) as A. caviae; and 5 isolates (5.0%) as other genospecies. The genes encoding aerolysin (aer), cytolytic enterotoxin (act), and A. hydrophila isolate SSU enterotoxin (ast) were detected in 45 (87%), 4 (7.7%), and 9 (17%) of the 52 isolates tested, respectively. The gene encoding an extracellular lipase (alt) was not detected. Conclusion: The majority of aeromonads from Libya fall within three genospecies (i.e. A. hydrophila, A. veronii, and A. caviae), and genes coding for toxin production are common among them.

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September 2014
187 Reads

High isolation rates of multidrug-resistant bacteria from water and carpets of mosques

Libyan J Med 2014, 9: 25415 - http://dx.doi.org/10.3402/ljm.v9.25415

Libyan Journal of Medicine

Objective: There is little information regarding the isolation of antimicrobial-resistant potentially pathogenic bacteria from water and carpets of mosques worldwide. The objective of the present investigation is to determine the bacteriological quality of water and carpets of mosques in Elkhomes city in Libya. Methods: Potentially pathogenic bacteria were isolated from water samples (n44) and dust samples from carpets (n50) of 50 mosques in Elkhomes city, Libya, using standard bacteriological procedures. Susceptibility of isolated bacteria to antimicrobial agents was determined by the disc-diffusion method. Results: Of the water samples examined, 12 (27.3%) were positive for Escherichia coli, 10 (22.7%) for Klebsiella spp., and 15 (34.1%) for other enteric bacteria. Of the dust samples of carpets examined, 6 (12%) were positive for E. coli, 33 (66%) for Klebsiella spp., and 30 (60%) for Staphylococcus spp. Multidrug resistance (MDR, resistance to three or more antimicrobial groups) was found among 48.7% (19/37) and 46.9% (30/64) of the examined enterobacteria from water and carpets, respectively, and among 66.7% (20/30) of Staphylococcus spp. from carpets. In addition, methicillin-resistant Staphylococcus aureus (MRSA) was isolated from a carpet of one mosque. Conclusion: Presence of multidrug-resistant potentially pathogenic bacteria in examined water and carpets indicate that mosques as communal environments may play a role in the spread of multidrug-resistant bacteria in the community and pose a serious health risk to worshipers.

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August 2014
8 Reads

Enteroaggregative Escherichia coli in diarrheic children in Egypt: molecular characterization and antimicrobial susceptibility.

J Infect Dev Ctries 2014 May 14;8(5):589-96. Epub 2014 May 14.

Faculty of Science, Cairo University, Egypt.

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http://dx.doi.org/10.3855/jidc.4077DOI Listing
May 2014
14 Reads
2 Citations
1.270 Impact Factor

Nasal carriage of multi-drug resistant Panton-Valentine leucocidin-positive methicillin-resistant Staphylococcus aureus in children in Tripoli-Libya.

Am J Trop Med Hyg 2014 Apr 3;90(4):724-7. Epub 2014 Feb 3.

Faculty of Pharmacy and Faculty of Medicine, University of Tripoli, Tripoli, Libya.

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http://dx.doi.org/10.4269/ajtmh.13-0715DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3973520PMC
April 2014
5 Reads
3 Citations
2.700 Impact Factor

Antimicrobial resistance in Libya: 1970-2011.

Libyan J Med 2013 Mar 27;8:1-8. Epub 2013 Mar 27.

Department of Microbiology and Immunology, Faculty of Medicine, University of Tripoli, Tripoli, Libya.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3610430PMC
http://dx.doi.org/10.3402/ljm.v8i0.20567DOI Listing
March 2013
66 Reads
6 Citations

Cryptosporidium in countries of the Arab world: the past decade (2002-2011).

Libyan J Med 2012 27;7. Epub 2012 Nov 27.

Faculty of Medicine, University of Tripoli, Tripoli, Libya.

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http://dx.doi.org/10.3402/ljm.v7i0.19852DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509416PMC
December 2012
8 Reads
2 Citations

Molecular characterization of diarrheagenic Escherichia coli from Libya.

Am J Trop Med Hyg 2012 May;86(5):866-71

Department of Botany, Faculty of Science, Cairo University, Cairo, Egypt.

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http://dx.doi.org/10.4269/ajtmh.2012.11-0330DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3335695PMC
May 2012
18 Reads
7 Citations
2.700 Impact Factor

Methicillin-resistant Staphylococcus aureus (MRSA) in a tertiary surgical and trauma hospital in Benghazi, Libya.

J Infect Dev Ctries 2011 Oct 13;5(10):723-6. Epub 2011 Oct 13.

Department of Medicine, Faculty of Medicine, Garyounis University, Benghazi, Libya.

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October 2011
40 Reads
7 Citations
1.270 Impact Factor

Enteric pathogens associated with childhood diarrhea in Tripoli-Libya.

Am J Trop Med Hyg 2011 Jun;84(6):886-91

Departments of Microbiology and Immunology, Faculty of Medicine, Alfateh University, Tripoli, Libya.

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http://dx.doi.org/10.4269/ajtmh.2011.11-0116DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3110355PMC
June 2011
7 Reads
15 Citations
2.700 Impact Factor

Rotavirus in children with diarrhea in Tripoli, Libya.

Libyan J Med 2011 Feb 18;6. Epub 2011 Feb 18.

School of Basic Sciences, Academy of Graduate Studies Tripoli, Libya.

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http://dx.doi.org/10.3402/ljm.v6i0.6041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3081859PMC
February 2011
6 Reads
3 Citations

Isolation of antibiotic-resistant pathogenic and potentially pathogenic bacteria from carpets of mosques in Tripoli, Libya.

Libyan J Med 2010 Sep 13;5. Epub 2010 Sep 13.

Department of Microbiology and Immunology, Faculty of Medicine, Al-Fateh University, Tripoli, Libya.

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http://dx.doi.org/10.3402/ljm.v5i0.5536DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3071171PMC
September 2010
6 Reads
1 Citation

Maternal and neonatal seroprevalence of Hepatitis B surface antigen (HBsAg) in Tripoli, Libya.

J Infect Dev Ctries 2010 Mar 29;4(3):168-70. Epub 2010 Mar 29.

Faculty of Sciences, Al-Fateh University, Tripoli, Libya.

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March 2010
5 Reads
12 Citations
1.270 Impact Factor

Enteric fever in Mediterranean north Africa.

J Infect Dev Ctries 2009 Dec 15;3(10):753-61. Epub 2009 Dec 15.

Faculty of Medicine, Al-Fateh University of Medical Sciences, Tripoli, Libya.

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December 2009
9 Reads
3 Citations
1.270 Impact Factor

Isolation of methicillin-resistant Staphylococcus aureus (MRSA) from rented DVDs.

Am J Infect Control 2009 Sep;37(7):612

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http://dx.doi.org/10.1016/j.ajic.2008.06.010DOI Listing
September 2009
5 Reads
1 Citation
2.210 Impact Factor

Uropathogens from diabetic patients in Libya: virulence factors and phylogenetic groups of Escherichia coli isolates.

J Med Microbiol 2009 Aug 15;58(Pt 8):1006-14. Epub 2009 Jun 15.

Department of Microbiology and Immunology, Faculty of Medicine, Al-Fateh University for Medical Sciences, Tripoli, Libya.

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http://dx.doi.org/10.1099/jmm.0.007146-0DOI Listing
August 2009
11 Reads
7 Citations
2.250 Impact Factor

Aeromonas-associated infections in developing countries.

J Infect Dev Ctries 2008 Apr 1;2(2):81-98. Epub 2008 Apr 1.

Dept. of Microbiology and Immunology, Faculty of Medicine, Al-Fateh University, Tripoli, Libya.

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April 2008
20 Reads
13 Citations
1.270 Impact Factor

PCR detection of toxic shock syndrome toxin of Staphylococcus aureus from Tripoli, Libya.

J Med Microbiol 2006 Feb;55(Pt 2):179-82

Department of Microbiology, Faculty of Science, Etövös Loránd University, Budapest, Hungary.

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http://dx.doi.org/10.1099/jmm.0.46162-0DOI Listing
February 2006
11 Reads
4 Citations
2.250 Impact Factor