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N.A.El-Dib, "Zoonotic Diseases in relation to public health, ", The First International Congress of M.O.H.P. , Luxor, Egypt, 29 October, 1998.
H.H.El-Rahimy, A. M. N. El-Hoda, N.A.El-Dib, M.K.Sobhy, and A.I.El-Adawy, "The use of IHA test for the detection of specific immunoglobulins in stools of patients with S. masnoni infection. ", 14th Scientific Congress of the Egyptian Society of Basic Medical Sciences, Faculty of Medicine, Cairo University, Cairo, 2 January, 1992.
N.A.El-Dib, "Unusual presentation of Parasitic Diseases. ", First Annual Congress of the Egyptian Parasitologists United, Ain Shams University, 27 March, 2008. unusual_presentation_of_parasitic_diseases.ppt
H.H.El-Rahimy, M.K.Sobhy, N.A.El-Dib, A.A.Ali, and G.A.Bassiouni, "Toxoplasma infection among pregnant women in Makkah, Saudi Arabia. ", Medical Journal of Cairo University, vol. 57, issue 2, pp. 349, 1989.
H.H.El-Rahimy, N.A.El-Dib, M.K.Sobhy, and A.I.El-Adawy, "Toxoplasma antibodies in Saudi infants with neonatal medical problems. ", Scientific Congress of the Egyptian Society of Basic Medical Sciences, Faculty of Medicine, Cairo University, Cairo, 2 January, 1992.
J.A.Ahmed, N.A.El-Dib, and S. A. El-Rasheed, "Technique For Parasite Detection in Sludge. ", Annual Scientific Conference of the Egyptian Society of Parasitology, Faculty of Medicine, Cairo University, Cairo, 20 November, 1997.
H.H.El-Rahimy, N.A.El-Dib, A. M. N. El-Hoda, A. A. A. El-Ghaffar, and A.Abbas, "Study on humoral and lymphocate specific reactions in patients infected with schistosoma mansoni ", Ain Shams Medical Journal, vol. 47, issue 7-8, pp. 828-832, 1996.
E.I.Hamdy, M.A.Azzazy, N.A.El-Dib, L.H.Mahmoud, and J.A.Ahmed, "Soil as a source of parasitic infection to man in Greater Cairo", Bullutin of National Research Center, vol. 21, issue 2, 1996.
Banisch, D. M., A. El-Badry, J. V. Klinnert, R. Ignatius, and N. El-Dib, "Simultaneous detection of Entamoeba histolytica/dispar, Giardia duodenalis and cryptosporidia by immunochromatographic assay in stool samples from patients living in the Greater Cairo Region, Egypt.", World journal of microbiology & biotechnology, vol. 31, issue 8, pp. 1251-8, 2015 Aug. Abstract

Gastrointestinal infection due to intestinal parasites is an enormous health problem in developing countries and its reliable diagnosis is demanding. Therefore, this study aimed at evaluating a commercially available immunochromatographic assay (ICA) for the detection of cryptosporidia, Giardia duodenalis, and Entamoeba histolytica/dispar for its usefulness in the Greater Cairo Region, Egypt. Stool samples of 104 patients who presented between October 2012 and March 2013 with gastrointestinal symptoms or for the exclusion of parasites at Kasr-Al-Ainy University Medical School were examined by light microscopy of wet mounts and the triple ICA. Microscopy revealed in 20 % of the patients [95 % confidence interval (CI), 13.5-29.0 %] parasites with Hymenolepis nana, E. histolytica/dispar and Blastocystis hominis being the most frequent ones, but was not able to detect G. duodenalis and cryptosporidia, whereas ICA was positive in 21 % (95 % CI, 14.3-30.0 %) and detected E. histolytica/dispar in 12.5 % (95 % CI, 7.3-20.4 %), cryptosporidia in 6.7 % (95 % CI, 3.1-13.5 %) and G. duodenalis in 15.4 % (95 % CI, 9.6-23.6 %) of the patients. Detection of one or more pathogens was associated with access to water retrieved from a well or pump (p = 0.01). Patients between 20 and 29 years of age (p = 0.08) and patients with symptoms of 5 days or longer (p = 0.07) tended to have a higher risk to be infected than patients of other age groups or with shorter-lasting symptoms. In conclusion, the ICA was easy to perform and timesaving. Importantly, it enabled the detection of cryptosporidia, which cannot be found microscopically in unstained smears, demonstrated a higher sensitivity for the detection of G. duodenalis than microscopy, and was more specific for distinguishing E. histolytica/dispar from apathogenic amoeba.

E.I.Hamdy, M.A.Azzazy, N.A.El-Dib, L.H.Mahmoud, J.A.Ahmed, and H.M.Khattab, "Serological diagnosis of toxcarisis in soil transmitted human parasites in Greater Cairo, ", Medical Journal of Cairo University, vol. 61, issue 1, pp. 13-16, 1994.
A.M.Boghdadi., N.A.El-Dib, A.I.El-Adawy, and S.M.Fahmy, "Sandwich ELISA technique in the detection of circulating immune complexes in Schistosoma mansoni infection", Medical Journal of Cairo University, vol. 60, issue 2, pp. 513-516, 1992.
M.K.Sobhy, N.A.El-Dib, S.M.E.Fahmy, and S.M.El-Naggar, "Reliability of IHA test in the diagnosis of echinococcosis. ", 15th Scientific Congress of the Egyptian Society of Basic Medical Sciences, Faculty of Medicine, Cairo University, Cairo, January, 1993.
A.A. Mostafa, K.A.Allam, K.A.Bader, and N.A.El-Dib, "Recent Toxicolgical Studies on adult housefly Musca domestica (L.) in some Egyptian governorates. ", Egypt. J. of Med. Sciences, vol. 17, issue 2, pp. 537-546, 1996.
M.E.Azab, N.El-Dib, and H.Omar, "Pseudoparasitosis due to accidental ingestion of chicken coecum. Case report. ", Parasitologists United Journal (PUJ), vol. 6, issue 1, pp. 117-118, 2013.
H.El-Rahimy, N.A.El-Dib, O.El-Matarawy, and M.K.Sobhy, "Prevelance of intestinal parasitic infections in Macca, Saudi Arabia", J. Egypt. Soc. Parasitol., , vol. 16, pp. 185-187, 1986.
K.Peterson, R.J.O'Connell, H.L.Sandingo, S.L.Bernos, P.J.Damahar, N.A.El-Masry, and N.A.El-Dib, "A pregnant woman with severe diarrhea. Photo Quiz", Clin.Infect.Dis., vol. 49, pp. 1767-1768, 2009.
H.Salama, N.El-Kady, A.Farrag, M. A. El-Rahman, and N.A.El-Dib, "Percutaneous enchoguided puncture of hepatic hydatdi cysts using P.A.I.R. technique with different scolicidal agents. Egypt. ", J.of Med. Sciences, vol. 13, issue 2, pp. 447-453, 1992.
N.A.El-Dib, J.A.Ahmed, M.A.El-Arousy, M. A. Mahmoud, and K.Garo, "Parasitological aspects of Capillaria philippinensis recovered from Egyptian Patients. ", J.Egypt. Soc. Parasitol, vol. 29, issue 1, pp. 139-147, 1999.
N.A.El-Dib, and N.El-Kady, "Parasitological and entomological profile of an outbreak of malaria in Taif, Saudi Arabia. ", J.of Med. Sciences, vol. 13, issue 2, pp. 511-520, 1992.
N.A.El-Dib, "Parasitic infection of liver and G.I.T. tract in children in Egypt. ", First Annual Meeting of Egyptian Society of Pediatric Hepatology and Gasteronoenterology. , Nile Hilton Hotel, Cairo, 28 December, Submitted.
N.A.El-Dib, "Newly Recognized Enteric Protozoa associated with diarrhoea. ", Fourth Annual Congress of the Egyptian Society of Tropical Medicine, Infectious and Parasitic Disease. , Cairo, Egypt, 18 February, 1997.
N.A.El-Dib, A.I.Farrag, M.A.Mabrouk, H.M.Salama, Z.A.Salama, and S.M.Mostafa, "A new case of intestinal capillarisais in Egypt. ", J. of Trop.Med, vol. 2, issue 2, pp. 75-76, 1992.
El-Dib, N. A., A. A. El-Badry, T. - H. Ta-Tang, and J. M. Rubio, "Molecular detection of Capillaria philippinensis: An emerging zoonosis in Egypt.", Experimental parasitology, vol. 154, pp. 127-33, 2015 Jul. Abstract

Human infection with Capillaria philippinensis is accidental; however, it may end fatally if not diagnosed and treated in the proper time. The first case was detected in the Philippines in 1963, but later reported in other countries around the world, including Egypt. In this report, molecular diagnosis using a specific nested PCR for detection of C. philippinensis in faeces is described based on the amplification of small ribosomal subunit. The test showed sensitivity and specificity, as it detected all the positive cases and gave no cross-reaction with human DNA and DNA of other tested parasites. This method can be very useful not only for improvement of diagnosis, but also to understand the different environmental routes of transmission by detection of C. philippinensis DNA-stages in the possible fish intermediate hosts and reservoir animal host, helping to improve strategies for surveillance and prevention of human disease.

N.A.El-Dib, "Man, River and Parasitic Disease. ", The First Scientific Congress on Science in Service of Sustained Development in Nile Basin Countries , Ministry of Agriculture, Dokki, Cairo, 22 May, 1995.
N.A.El-Dib, "Letter to the editor; Top tips for a scientific power point presentation. ", Parasitologists United Journal (PUJ), vol. 6, issue 1, pp. 120-121, 2013.