1. Hassan, R., W. El-Naggar, A.M.A. El-Aziz, M. Shaaban, H.I. Kenawy and Y.M. Ali, 2018. Immunization with outer membrane proteins (OprF and OprI) and flagellin B protects mice from pulmonary infection with mucoid and nonmucoid pseudomonas aeruginosa. J. Microbiol. Immunol. Infect., 51: 312-320.
   CrossRef  |  Direct Link  |  
2. Hassan, R., W. Elnagar, E.E. Habib, M.A. El-Mowafy and A.A. El-Sandouby, 2017. Evaluation of lal test interference in some egyptian parenteral drugs alone and in combinations. J. Microbiol., 48: 73-83.
   Direct Link  |  
3. Elnaggar, W.A., T.H. Taha, N.M. El-Deeb and H.H. Arafat, 2016. Efficacy of non-cytotoxic doses of some medicinal plant extracts as antibacterial and anti-biofilm agents against cariogenic bacterium Streptococcus mutans. Biosci. Biotechnol. Res. Asia, 13: 1279-1284.
   CrossRef  |  Direct Link  |  
4. Arafat, H.H., W.A. Elnaggar and M.F. Abdelwahab, 2016. Biochemical and molecular identification and antimicrobial activity of antibiotic-producing Streptomyces sp. isolated from Saudi Arabia. Int. J. Biol. Pharm. Allied Sci., 5: 1215 -1229.
5. Elnaggar, W.A., I.E. A-Elbasit, H.H. Arafat and A. Elsherbini, 2014. PCR detection of indicator genes in methicillin-resistant Staphylococcus aureus (MRSA) isolated from three Saudi hospitals. New Egypt. J. Microbiol., 39: 63-71.
   Direct Link  |  
6. Elnaggar, W.A., I.E. A-Elbasit, H.H. Arafat and A. Elsherbini, 2014. PCR detection of indicator genes in methicillin-resistant Staphylococcus aureus (MRSA) isolated from three Saudi hospitals. New Egypt. J. Microbiol., 39: 63-71.
   Direct Link  |  
7. Elgaml, A., R. Hassan, R. Barwa, S. Shokralla and W. El-Naggar, 2014. Antimicrobial susceptibility and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) typing of Gram negative bacteria isolated from urinary tract infections in Mansoura, Egypt. J. Microbiol., 6: 43-50.
   Direct Link  |  
8. Elgaml, A., R. Hassan, R. Barwa, S. Shokralla and W. El-Naggar, 2013. Analysis of 16S ribosomal RNA gene segments for the diagnosis of Gram negative pathogenic bacteria isolated from urinary tract infections. Afr. J. Microbiol. Res., 7: 2862-2869.
   CrossRef  |  Direct Link  |  
9. El Galil, K.A., S.M. Abdel Ghani, M.A. Sebak and W. El-Naggar, 2013. Detection of biofilm genes among clinical isolates of Pseudomonas aeruginosa recovered from some Egyptian hospitals. N. Egypt. J. Microbiol., 36: 86-101.
10. Abdel Ghani, S.M., K.H.A. El Galil, M.N. Taha and W.A. El-Naggar, 2013. Phenotypic and genotypic detection of beta-lactamase produced by clinical Staphylococcus aureus isolates. N. Egypt. J. Microbiol., 36: 136-151.
11. Hassan, R., W. El-Naggar, E. Habib and R. El-Bargisy, 2011. Comparative studies on Staphylococcus aureus isolates associated with infections in diabetic and non-diabetic patients. Egypt. J. Med. Microbiol., 21: 71-79.
12. Hassan, R., W. El-Naggar, E. El-Sawy and A. El-Mahdy, 2011. Characterization of some virulence factors associated with enterbacteriaceae isolated from urinary tract infections in Mansoura hospitals. Egypt. J. Med. Microbiol., 20: 9-17.
    Direct Link  |  
13. El-Naggar, W., R. Hassan, E. El-Sawy, K.A. El Galil and A. El-Mahdy, 2011. Comparative study of phenotypic and genotypic expression of some virulence factors in Escherichia coli and Klebsiella pneumoniae isolated from urinary tract infections in Mansoura hospitals. Egypt. J. Med. Microbiol., 20: 67-77.
14. El-Naggar, W., M. El-Sokkary, R. Barwa and S. Abdel Rahman, 2011. Phenotypic and genotypic studies on antibacterial efflux pumps in Pseudomonas aeruginosa. Egypt. J. Med. Microbiol., 20: 99-106.
15. Shaaban, M., J.M. Palmer, W.A. El-Naggar, M.A. El-Sokkary, E.S.E. Habib and N.P. Keller, 2010. Involvement of transposon-like elements in penicillin gene cluster regulation Fungal Genet. Biol., 47: 423-432.
    CrossRef  |  
16. El-Naggar, W., R. Ibrahim, E. Habib, S. Shokralla and E. Abd-Elmagid, 2010. A comparative study on gram-negative bacterial infections in Mansoura University Hospitals, Egypt. Proceedings of the International Scientific Exchange (ISE) Section of the 14th International Congress on Infectious Diseases, March 9-12, 2010, International Society for Infectious Diseases, Miami, Florida, USA. -.
17. El-Naggar, W., R. Hassan, R. Barwa, S. Shokralla and A. Elgaml, 2010. Molecular diagnosis of gram negative bacteria in urinary tract infections. Egypt. J. Med. Microbiol., 19: 93-106.
    Direct Link  |  
18. El Naggar, W., E. Habib, S. Shokralla, R. Barwa, K.H.A. El Galil and E. Abdelmegeed, 2010. Phenotypic and genotypic characterization of extended spectrum beta-lactamases produced by Enterobacteriaceae. Egypt. J. Med. Microbiol., 19: 59-66.
    Direct Link  |  
19. Shaaban, M., E. Habib, M. El-Sokkary and W. El-Naggar, 2009. Penicillin production by immobilized cells of Penicillium chrysogenum NRRL842. N. Egypt. J. Microbiol., 24: 116-128.
20. El-Naggar, W., R. Hassan, S. Kheira, E. Habib and R. El-Bagisy, 2009. The effect of biofilm formation on the efficacy of different antimicrobials against bacterial clinical isolates. Proceedings of the 26th International Congress of Chemotherapy (ICC) and Infection/AMMI Canada-CACMID Annual Conference, June 18-21, 2009, The Changing Climate of Infectious Diseases, Toronto. -.
21. El-Naggar, W., R. Hassan, K. Abd El-Galil, S. Shokrallas and H. Shehta, 2009. Molecular typing of clinical isolates of Klebsiella pneumonia isolated from different sources in Mansoura University Hospitals, Egypt. Proceedings of the 26th International Congress of Chemotherapy (ICC) and Infection /AMMI Canada-CACMID Annual Conference, June 18-21, 2009, The Changing Climate of Infectious Diseases, Toronto. -.
22. Shokralla, S., M.A. El-Sokkary, W.A. El-Naggar, S.M. Kheira, B. Gharizadeh, R.W. Davis and M. Ronaghi, 2007. Microbiological studies on highly resistant clinical bacterial isolates. Proceedings of the 24th Annual NCASM Spring Meeting, March 30-31, 2007, San Ramon, CA., pp: 184-186.
23. Anyama, N., S. Sseguya, A. Okwera, W.A. El-Naggar, F. Mpagi and E. Owino, 2007. The challenge of re-treatment pulmonary tuberculosis at two teaching and referral hospitals in Uganda. Afr. Health Sci., 7: 136-142.
    Direct Link  |  
24. El-Naggar, W.A., M. El-Emam, R. Hassn and S. George, 2000. Plasmid profile as fingerprinting of typing Pseudomonas aeruginosa. Proceedings of the 4th European Conference on Ethnopharmacology, May 11-13, 2000, Metz, France. -.
25. Kheira, S., M. El-Sokkary, W. El-Naggar, M. El-Emam and M.W.A.E. Kelly, 1999. Purification of acetyltransferases obtained from transformant E. coli pWP701 stains kheira. J. Pharm. Sci., 15: 1-28.
26. El-Sokkary, M., J. Kelly, M. El-Emam, W. El-Naggar and W.A.E. Khira, 1999. Effect of some B-lactams and B-lactamase on purified aminoglycoside acetyetransferases from transformants E. coli pWP871 and pWP701. J. Pharm. Sci., 15: 29-49.
27. El-Sokkary, M.A., E.E. Habib, R.M. Hassan, M.A. El-Emam and M.W.A.E. Kelly, 1995. Effect of some additives on gentamicin production by free and immobilized cells of Micromonospora purpurea. J. Pharm. Sci., 11: 170-187.
28. El-Sokkary, M.A., E.E. Habib, R.M. Hassan and M.W.A.E. Kelly, 1995. Gentamicin production by free and immobilized cells of Micromonospora purpurea. J. Pharm. Sci., 11: 149-169.
29. Ibrahim, T.M. and W.A.A. El-Naggar, 1994. Potential interaction and toxicity of concurrently administered gentamicin or cefotaxime. J. Pharm. Sci., 8: 225-229.
30. El-Naggar, W.A., 1994. Multiple antibiotic resistance plasmid from Pseudomonas aeruginosa. Zagazig J. Pharm. Sci., 3: 13-18.
31. Badria, F. and W.A. El-Naggar, 1994. Investigation of structure and antimicrobial activity of five phenazine pigments isolated from Pseudomonas aeruginosa. Sci. Pharm., 62: 355-362.
32. El-Shishtawey, M.M., W.A. El-Naggar, A. El-Gayar and S. Shamaa, 1993. Effect of hepatic cirrhosis on the binding of cefotaxime to serum. Proceedings of the Annual Scientific Meeting of the Faculty of Medicine, February 11-12, 1993, Mansora University, Mansoura, Egypt. -.
33. El-Naggar, W.A., M.A. El-Emam and R.M. Hassan, 1993. Incidence of cross resistance to ofloxxacin, betalactams and aminoglycosides among 30 isolates of Pseudomanas aeruginosa. Proceedings of the Pharmaceutical Society of Egypt 33rd Conference of Pharmaceutical Sciences, February, 15-18, 1993, Cairo, Egypt. -.
34. El-Naggar, W.A., 1993. The post antibiotic effect of cefitizoxime monotherapy and combination studies. Alex. J. Pharm. Sci., 7: 225-228.
35. El-Naggar, W.A., 1993. Effect of tetracyclines on the activity of nystatin, natamycin and miconazole against pathogenic yeasts. Proceedings of the Pharmaceutical Society of Egypt 33rd Conference of Pharmaceutical Sciences, February, 15-18, 1993, Cairo, Egypt. -.
36. Saad, M., M. Kheriza, S. Sirag, A. Hassan, H. Shata and W.A. El-Naggar, 1992. Gentamicin experimentally induced renal failure in prazosin treated rats. Proceedings of the Annual Scientific Meeting of the Egyptian Society of Pharmacology and Experimental Therapeutics, April 9, 1992, Faculty of Medicine, Menofeya University, Egypt. -.
37. El-Naggar, W.A., 1992. Effect of salicylate on antibacterial activity of different antibiotics. Arch. Pharm. Res., 15: 99-103.
    CrossRef  |  
38. Badria, F., W.A. El-Naggar and A.N. Gurgis, 1992. Antibacterial and antifungal agents from Egyptian marines. Proceedings of the 3rd Annual Meeting of the American Society of Pharmacognosy, July 26-31, 1992, Colonial Williamsburg, Virginia, USA. -.
39. El-Sokkary, M.N.A., W.A. El-Naggar and S.M. Kheira, 1989. Effect of betalactams and aminoglycosides on aminoglycoside inactivating enzymes of Pseudomonas aeruginosa. J. Pharm. Sci., 3: 35-39.
40. El-Naggar, W.A., 1989. Characterization of betalactamases produced by Pseudomonas aeruginosa. Alex. J. Pharm. Sci., 3: 165-169.
41. El-Emam, M.A., W.A. El-Naggar and T.M. Ibrahiem, 1989. Antipseudomonal activity and nephrotoxicity of cephradine-netilmicin combination. Arch. Pharm. Sci., 12: 114-118.
    CrossRef  |  
42. El-Sokkary, M.A. and W.A.M. El-Naggar, 1988. Studies on the interactions of aminoglycoside antibiotics and protease of Pseudomonas aeruginosa. J. Pharm. Sci., 5: 86-100.
43. El-Naggar, W.A., E.K. Nafei, R. Arafa and N.A.A. Lokma, 1988. Comparative studies between selected indicator strains and Govan and Gillies pycocin typing set in typing Pseudomonas aeruginosa isolated from two Egyptian Hospitals. J. Microbiol., 4: 103-121.
44. El-Naggar, W.A., E.K. Nafei, M. Attia and E.M. El-Naggar, 1988. Production of aminoglycoside inactiviating enzymes by Pseudomonas aeruginosa. J. Pharm. Sci., 3: 1-16.