Institute of Endemic Diseases - SUDAN

 

 

 

 

CURRICULUM VITAEPRIVATE

 

Name: Ahmed Mohamed EL Hassan.

Address: Institute of Endemic Diseases, University of Khartoum, Sudan. P.O. Box 102,

Khartoum, Sudan.

Nationality: Sudanese

Date of birth: 10 April 1930.

Sex: Male            

Qualifications:

Date                 Institution                                             Qualification obtained   

1974              Royal Collage of Physicians, London          F.R.C.P.

1964              University of Edinburgh,                          Ph.D.         

1960              University of London.                             D.C.P.

1964              Royal College of Pathologists, London        F.R.C. Path.  

1955              University of Khartoum, Sudan.                D.K.S.M.

                                       

Awards and Honours:                                            

Date         Awarding body                         Name of award                     

1955     Kitchener Memorial Fund        Kitchener Memorial Prize 

1955     University of Khartoum          Distinction and prizes in   Medicine and Surgery 

1977     Government of Sudan Gold Medal for Research and Science         

1986     World Health Organization   Shousha Prize           

1979     Government of Sudan         El Neelain Order (First Class)

1995     Government of Sudan         Order of Merit (First Class)

1996   Donald Mackay Medal          Royal Soc of Tropical Medicine and hygiene UK

 

Positions held:

Date                            Position

1955-1957                  Housemanship, Ministry of Health, Sudan

1957-1958                  Medical Officer, Ministry of Health, Sudan

1958-1960                 Research Assistant, Pathology Department, and faculty of Medicine, University of Khartoum

1960-1961              Honorary Registrar, Pathology Department, Postgraduate Medical School, London

1961-1962                  D.C.P. Course, London

1962-1963                 Lecturer in Pathology, Faculty of Medicine, University of Khartoum

1963-1965                  Ph.D Student, Pathology Department, University of Edinburgh

1965-1966               Senior Lecturer and Head, Department of Pathology, University of Khartoum

1966-1969                Professor of Pathology, University of Khartoum

1969-1971              Dean, Faculty of Medicine and Deputy Vice Chancellor, University of Khartoum

1971-1972                Minister of Higher Education and Research, Sudan

1972-1977              Chairman Medical Research Council, National  Council for Research, Sudan

1977-1979             Chairman & Professor, Pathology Department. College of Medicine and Medical Sciences, King  Faisal University, Dammam, Saudi Arabia

1979-1980            Professor of Pathology, Faculty of Medicine, Chairman, Medical Research Council, Khartoum, Director of Tropical Diseases, Institute, Khartoum

1980-1987            Professor of Pathology, College of Medicine and  Medical Sciences, King Faisal University, Dammam, Saudi Arabia and Director of Research, Translations and Publications, College of Medicine and Medical Sciences, King Faisal  University, Dammam, Saudi Arabia

1988-1991          Professor of Pathology, Faculty of Medicine, University of Khartoum      

1993-2000       Director, Institute of Endemic Diseases, University of Khartoum.

Professor of Pathology, Ahfad School of Medicine, Ahfad University for Women, Omdurman, Sudan.

                       Emeritus Professor of Pathology, University of Khartoum.

2005 to date      President Sudanese National Academy of Sciences (SNAS)

2005 to date        President Sudanese Cancer Society

 

Contribution to medical education, health manpower development and research administration:

Establishment of the following institutions and activities:-

  • Institute of Medical Laboratory Technology, University of Khartoum 1965.  It is now elevated to College of Medical Laboratory Technology, Ministry of Higher Education and Scientific Research.

  • Ministry of Higher Education and Scientific Research, Sudan -1970.   

  • Institute of Tropical Medicine, National Council for Research, Sudan.

  • Department of Pathology, Faculty of Medicine and Medical Sciences, King Faisal University, Dammam, Saudi Arabia.

  • Directorate of Research, Publications and Translations, Faculty of Medicine and Medical Sciences, King Faisal University, Dammam, Saudi Arabia.

  • College of Medical Laboratory Technology, Ahlia University, Omdurman, Sudan.

  • Department of Pathology, School of Medicine, Ahfad University College for Women, Omdurman, Sudan.

  • Institute of Endemic Diseases, University of Khartoum.

  • The Sudanese Society of Tropical Medicine and Hygiene.

  • Supervision or co-supervision of M Sc, PhD or M.D. thesis  in the Universities of Khartoum, Amsterdam and Copenhagen.

 

Membership of Scientific Bodies and Societies:

  • Scientific Technical Advisory Committee (STAC )TDR 1979-1982 and 1983-1986

  • Advisory Committee on Health Research EMRO/WHO.

  • Sudan Society for Pathology.

  • International Academy of Pathology (Middle East).

  • New York Academy for Sciences.

  • Sudanese Society of Tropical Medicine and Hygiene.

Current Research: 

1.       Epidemiological, clinical and therapeutic studies on   leishmaniasis in the Sudan.

2.       Evaluation of molecular biological and serological methods in the diagnosis of leishmaniasis under field conditions.

3.       Immunopathology of leishmaniasis.

4.       Vaccines aginst leishmaniasis.

5.       Epidemiology and immunopathology of mycetoma in the Sudan.

6.       Epidemiology of leprosy in the southern part of Gedaref State, Sudan.

7.       Epidemiology of malaria in two villages on the Rahad River, Gedarif State, Sudan.

8.    Cancer and infectious agents

 

9.     Published Papers before 1990 (El Hassan et. al):

1 Pulmonary Cytomegalic inclusion body disease in a diabetic. J. Clin. Path., 15, 17, 1962.

2 Salivary gland tumours in the Sudan. Sud. Med. J., 1, 3,1962.

3 Multicentric sarcoma of the jaw. Sud. Med. J., 1, 168, 1962.

4 Cancer of the female genital tract among the Sudanese. J. Obst. Gynae., 70, 495, 1963.

5 Cancer in the Sudan. Sud. Med. J., 2, 29, 1963.

6 Inhibition and enhancement of the Landschuts ascites tumour. Proceedings of International Congress of Chemotherapy, Stuttgart, Germany, 1963.

7 Inhibition and enhancement of a mouse ascites tumour after treatment with living lymphoid cells. Lancet, 11, 496, 1963.

8 Specific Inhibition of the Landschuts tumour by an isogenic cellular system. Lancet, 1,913, 1964.

9 The Pathology of the Landschuts ascites tumour. Brit. J. Cancer, 28, 551, 1964.

10 Cancer of the bladder in the Sudanese and its relationship to Bilharziasis. Al-Hakeem, 20, 74, 1964.

11 Changes in the lymphoreticular tissues of mice bearing the Landschuts tumour. Brit. J. Cancer, 19, 343, 1965.

12 Survival of isogenic splenic grafts. J. Path. Bact., 90, 664, 1965.

13 Pathological aspects of Schistosomiasis in Sudan. Al-Hakeem, 20, 58, 1966.

14 Aortic onchocerciasis due to onchocerca armillatta in Sudan cattle. Sud. Med. J., 4, 147, 1966.

15 Inhibition and enhancement of the Landschutz ascites tumour with lymphoid cells. J. Path. Bact., 91, 11-31, 1966.

16 A comparative study of the DNA complement of malignant tumours. Sud. Med. J., 4, 1, 1966.

17 Malignant disease in Sudanese children. Sud. Med. J., 5, 2, 68, 1967.

18 Unusual forms of cardiomyopathy. Sud. Med. J., 5, 2, 68, 1967.

19 Oral and oropharyngeal tumours in the Sudan. Sud. Med. J., 5, 8-16, 1967.

20 Contribution to the pathological aspects of ainhum. Sud Med. J., 5, 82-87, 1967.

21 Bilharziasis in the Sudan. Cs. Patal., Vol. 3, No. IV, 244- 252, 1967.

22 Kaposi's sarcoma in the Sudan. Sud. Med. J., 5 (4), 213,1967.

23 Malignant disease of the upper respiratory tract. Proceeding of the Conference of Cancer in East Africa, Nairobi, 1968.

24 Aspects of malignant disease in the Sudan. Proceedings of the Conference on Cancer in East Africa, Nairobi, 1968.

25 The hereditary blood factors of the Beja of the Sudan. Man., 3, 272, 1968.

26 Non-healing midline granuloma. Sud. Med. J., Vol. 6, 1968.

27 Autopsy findings in Khartoum. Sud. Med. J., Vol. 6, 1968.

28 Sudan mucosal leishmaniasis. Trans. Roy. Soc. Trop.    Med. & Hyg., 63, 123-128, 1969.

29 Mucosal leishmaniasis in the Sudan. Ann. Trop. Med. & Parasitol., 63, 123-128, 1969.

30 Cervical lymphadenopathy caused by aspergillus terreus. Brit. Med. J., 1, 689-690, 1969.

31 Primary Aspergilloma of Paranasal sinuses in the Sudan. Brit. J. Surg., 56, 132, 1969.

32 White bile in Sudanese patients with cholelithiasis. Ain. Shams. Med. J., Vol. 20, No. 2, 1969.

33 Phycomycosis. Trans. Roy. Soc. Trop. Med. & Hyg., 64, 134-137, 1970.

34 Tumoral calcinosis. Sud. Med. J., 9, 133, 1971.

35 Lymph node involvement in mycetoma. Trans. Roy. Soc. Trop.   Med. & Hyg., 165, 1972.

36 Cardiovascular disease in Khartoum, postmortem and clinical evidence. Trop. Geogr. Med., 24, 118, 1972.

37 Pulmonary aspergillosis caused by aspergillus flavus. Thorax, 27, 33-37, 1972.

38 Hycanthone trial in the treatment of Schistosoma mansoni infection in the Sudan. J. Trop. Med. & Hyg., 75, 165-8, 1972.

39 Further observations on the primary paranasal aspergillus  granuloma in the Sudan. Am. J. Trop. Med. & Hyg., 75, 165-8,1972.

40 Cutaneous leishmaniasis in the Sudan. Trans. Roy. Soc. Trop.   Med. & Hyg., 67, 549-559, 1973.

41 Studies in the anaemia of kowashorkor and marasmus in the Sudan. J Trop Pediatr Environ Health1973;19:91-7.

42 Arterial changes in Kalazar. Act. Morph. Acad. Sci., Hung., 21, Suppl., 14, 32, 1973.

43 Morphological observations on visceral leishmaniasis in the Sudan. Trop. Geogr. Med., 26, 198-201, 1974.

44 Superficial cancer in the Sudan. Brit. J. Cancer, 30, 355, 1974.

45 Adenoacanthoma in endometriosis of the broad ligament. Sudan Med. J., 12, 22-25, 1974.

46 Proceedings: Some blood characteristics in the major tribes of the Sudan. West Afr J Pharmacol Drug Res1974;2:110

47 Preliminary report on the pathology of the nephrotic syndrome in Sudanese patients. West Afr. J. Pharmacol. Drug  Res., 2, 111, 1974.

48 Pattern of cancer of the bladder in the Sudan and its relationship to Schistosomiasis. J. Trop. Med. & Hyg., 78, 219, 1975.

49 Sudan Mucosal Leishmaniasis. Trans. Roy. Trop. Med. & Hyg., 69, 1975.

50 Some aspects of the surgical pathology of schistosomiasis in the Sudan. East Afr. Med. J., 52, 183-195, 1975.

51 Leiomyoma in the cervix and hyperplastic ectopic mammary tissue in a goat. Aust. Vet. J., 51, 362, 1975 (letter).

52 Pattern of bladder cancer in the Sudan and its relation to Schistosomiasis: a study of 255 vesical carcinomas. J Trop Med hyg1975;78:219-23.

53 Burkitts lymphoma in the Sudan. Afr. J. Med. Sci., 5, 30-34, 1976.

54  Tumoral lipocalcinosis: a clinicopathological study of 20 cases. J pathol1976;19:113-8

55 Morphology of the spleen and lymph nodes in fatal visceral leishmaniasis. Immunology, 33, 605-610, 1977.

56 Immunological status of mycetoma patients. Bull Soc Pathol Exot Filiales1977;70:48-54.

57 Northward spread of visceral leishmaniasis in the Sudan. Trans. R. Soc. Trop. Med. & Hyg., 70, 266 (letter), 1979.

58 The pathology of Schistosomiasis in Sudan. Trop. Geogr. Med., 29, 56-64, 1977.

59 The nephrotic syndrome in the Sudan with special reference to schistosomal nephropathy. Ann. Trop. Med. & Parasitol., 72, 357, 1978.

60      Mycetoma in goats. Sabourodia, 16, 217, 1978.

61       Studies of cutaneous leishmaniasis in northern Sudan. Ann. Trop. Med. & Parasitol., 72, 349-352.

62       Electron microscope investigation on leishmaniasis in the Sudan (I) Morphometric studies on leishmania parasites in various forms of human leishmaniasis. Ann. of Trop. Med. &     Parasi., 44, 421-426, 1980.

63       Louse-borne relapsing fever in the Sudan. A historical review and clinicopathological study. Trop. Geogr. Med., 32,106, 1980.

64       Pattern of the nephrotic syndrome in the Sudan. Ann. Med. Parasitol., 74, 37-44, 1980.

65      Fibrous epulis in a one-humped camel. Zbl. Vet. A., 27, 675- 677, 1980.

66       Electron microscopic investigations on leishmaniasis in the Sudan: (II). Ultrastructural morphology of macrophage-parasite interaction in human and hamster macrophages in vivo. Ann. Trop. Med. Parasitol., 75, 607-613, 1981.

67      Spontaneous release of macrophages from lysogenic bovine strains. Tubercle, 6, 263-9, 1981.

68      Primary intestinal tuberculosis. Ann. Trop. Med. & Parasitol., 76, 317-322, 1982.

69       Expanding clinical spectrum of cutaneous leishmaniasis in Saudi Arabia. Proceedings of the 8th Saudi Medical Conference, 1982 (in press).

70       The pathology of cutaneous leishmaniasis in Saudi Arabia. Proceedings of the 8th Saudi Medical Conference, 1982 (in press).

71       Expanding clinical spectrum of cutaneous leishmaniasis in Saudi Arabia. In: Second Annual Progress Report of the National Leishmaniasis Research Project. Riyadh, Saudi Arabia: Saudi National Centre for Science and Technology, pp. 123-143. ,1983.

72      Visceral spreading depletion of thymus - dependent regions and amyloidosis in mice and hamsters infected intradermally with leishmania isolated from Sudanese cutaneous leishmaniasis. Br. J. Exp. Path., 64, 605, 1984.

73      The ultrastructural morphology of human cutaneous leishmaniasis of low parasite load. Acta. Dermato-Venereologica, 64, 501-5, 1984.

74       Abdominal tuberculosis. Postgraduate Doctor, 7, 718-724, 1984.

75      The pathology of Aspergillus flavus in uncompromized host. East Afr. Med. J., 61, 837-842, 1984.

76      Malignant lymphomas at the pathology department, University of Khartoum. East Afr. Med. J., 61, No. 8, 1984

77      Immunohistochemical demonstration of lysozome and S100 protein antigen-containing cells in chronic cutaneous leishmaniasis. Acta. Path. Microbiol. Immunol. Scand., 99, 331-334, 1985.

78       A clinicopathological study of intestinal bilharziasis in the Sudan. East Afr. Med. J., 397-402, 1985.

79      Primary Paranasal Aspergillus granuloma. Postgraduate Doctor, 9, 258-82, 1985.

80      Vascular changes in human leishmaniasis: A light microscope and  immunohistochemical study. Ann. Trop. Med. Parsitol., 80, 183-188, 1986.

81       Dermal and mucosal leishmaniasis in the Sudan in "Leishmaniasis in Saudi Arabia" published by the Saudi  Ministry of Health, 1986 pp.

82                Ketoconazole in cutaneous leishmaniasis: results of a pilot study.  Saudi Med. J., 7, 596-604, 1986.

83       Immunohistological investigation in chronic cutaneous leishmaniasis in Saudi Arabia Trop Geogr Med1986;38:380-5

84       Lymphocyte phenotypes and HLA-DR expression in lesions of cutaneous leishmaniasis and their draining lymph nodes. Ann. Saud. Med., 212-220,1987.

85       Dissemination in cutaneous leishmaniasis: 1. Subcutaneous nodules. Int. J. Dermatol., 1987.

86       Peripheral nerve involvement in cutaneous leishmaniasis:  Int. J. Dermatol., 26, 527-531, 1987.

87       Chronic obstructive mastitis in the camel: A  clinicopathological study. Cornell Vet., 77, 132-150, 1987.

88       Leishmania infecting man and wild animals in Saudi Arabia, canine cutaneous leishmaniasis in the Eastern Province. Trans. Roy. Soc. Trop. Med. & Hyg., 81, 925-927, 1987.

89       The histopathology of naturally occurring cutaneous leishmaniasis in the reservoir host, Psammomys obesus. Bull. Soc. Path. Ex., 80, 615-623, 1987.

90       Clinical diagnosis of cutaneous leishmaniasis (oriental sore). J. Am. Acad. Dermatol., 16, 1183-1189, 1987a.

91      Dissemination in cutaneous leishmaniasis. 1. Subcutaneous nodules. Int. J. Dermatol., 26, 300-304,1987b.

92       Treatment of cutaneous leishmaniasis. Sud. Med. J, special issue, p.11, 1987.

93       Glycosylated haemoglobin: An indicator of long-term blood glucose in domestic sheep and goats. Comp. Biochem. Physiol., 90a: 229-231, 1988.

94       A case of African histoplasmosis from the Sudan. Trans. Roy. Soc. Trop. Med. & Hyg., 82, 503-505, 1988.

95       Dissemination in cutaneous leishmaniasis. 2. Satellite papules and subcutaneous induration. Int. J. Dermatol., 27, 702-706,1988.

96      Intersexuality in goats NZ Vet J Erratum NZ J vet J 1989;37:50.

97      Dissemination in cutaneous leishmaniasis. 3. Lymph node involvement. Int. J. Dermatol., 28, 248-254, 1989a.

98       Cryosurgery in Old World cutaneous leishmaniasis.  Brit. J. Dermatol., 118, 851-854, 1989b.

99       Peripheral neural involvement in cutaneous leishmaniasis. A pathologic study of human and experimental lesions. Int. J. Dermatol., 28: 243-247, 1989.

             List of publications since 1990:

100     El-Hassan, A.M., Ahmed, M.A.M., Abdul Rahim, A.G., Abdul Satir, A., Wasfi, A., Kordofani, A.A.Y., Mustafa, M.D., Wasfi, S., Bella, H. & Karrar, M.O. Visceral leishmaniasis in the Sudan: clinical and hematological features. Ann. Saudi Med., 10, 51-56, 1990a.

101     El Hassan, A.M., Ghalib, H.W., Zijlstra, E.E., El Toum, I.A., Ali, M.S., Ahmed, H.M.A. Post kala-azar dermal leishmaniasis in the absence of active visceral leishmaniasis. Lancet, 336, 750, 1990.

102     Zijlstra, E.E., Ali M.S., El Hassan, A.M., El-Toum, I.A., Satti, M., Ghalib, H.W., Sondorp, E. & Winkler, A. Kala-azar in displaced people from southern Sudan: epidemiological, clinical and therapeutic findings. Trans. Roy. Soc. Trop. Med. Hyg., 85, 365-369, 1991a.

103     Zijlstra, E.E., Ali M.S., El Hassan, A.M., El-Toum, I.A., Satti, M., Ghalib, H.W. & Kager, P.A. Direct agglutination test for diagnosis and sero-epidemiological survey of kala-azar in the Sudan. Trans. Roy. Soc. Trop. Med. Hyg., 85, 474-476, 1991b.

104     El Hassan , A.M.,  El Sheikh, E.A.,  El Toum, I.A.,  Ghalib, H.W.,  Ali, M.S.,  Zijlstra, E.,  & Satti, M.M.  Post-kala-azar anterior uveitis: demonstration of Leishmania parasites in the lesion. Trans. Roy. Trop. Med. Hyg.,  85, 471-473, 1991.

105     Ramadan RO, EL Hassan AM. Squamois cell carcinoma in sheep in Saudi Arabia. Rev  Elev Med Vet Pays Trop1991;44:23-6

106     EL Hassan AM, EL Toum IA, EL Asha BM The Marrara syndrome: isolation of Linguata serrata nymphs from  a patient and the viscera of goats. Tran R Soc Trop Med Hyg1991;85:309.

107     El Hassan A.M., Ali, M.S., Zijlstra, E.E., El Toum, I.A., Ghalib, H.W. & Ahmed, H.M.A. Post kala-azar dermal leishmaniasis in the Sudan: peripheral neural involvement. Int. J. Dermatol., 31, 400-403, 1992a.

108     El Hassan, A.M., Ghalib, H.W., Zijlstra, E.E., El Toum, I.A., Satti, M., Ali, M.S. & Ali, H.M.A. Post kala-azar             dermal leishmaniasis in the Sudan: clinical features,         pathology and treatment. Trans. Roy. Soc. Trop. Med. Hyg., 86, 245-248, 1992b.

109     Zijlstra E.E., Siddig, Ali M., El Hassan, A.M., El Toum, I.A., Satti, M., Ghalib H.W. Clinical aspects of kala-azar             in children from the Sudan. A comparison with the disease in adults. J. Trop. Paed., 1992; 38: 17-21.

110     El Toum, I.A., Zijlstra, E.E., Ali, M.S., Ghalib, H.W., Satti, M.M.H., El Toum B.&  El Hassan A.M. Congenital kala-azar and leishmaniasis of the placenta. Am. J. Trop. Med., 46, 57-62, 1992.

111     Zijlstra, E.E., Siddig, Ali M., El Hassan, A.M., El Toum, I.A., Satti, M., Ghalib, H.W., Kager, P.A. Comparative parasitological methods and the direct agglutination test in the diagnosis of kala-azar. Trans. Roy. Soc. Trop. Med. Hyg., 86: 505-507, 1992.

112     Ghalib, H.W., El Toum, I.A., Kroon, C.C.M.& El Hassan, A.M. Identification of Leishmania from mucosal leishmaniasis in the Sudan by recombinant DNA probes. Trans. Roy. Soc. Trop. Med. Hyg., 86, 158-160, 1992.

113     Abbas, K., El Toum, I.A. & El Hassan, A.M. Oral leishmaniasis associated with kala-azar. A case report. Oral Surg., Oral Med. & Oral Path., 73, 583-584, 1992.

114     El Hassan, A.M., Hashim, F.A., Abdalla, M., Zijlstra, E.E. & Ghalib, H.W. Distinguishing post-kala-azar dermal leishmaniasis from leprosy: experience in the Sudan. Lepr. Rev., 64, 53-59, 1993.

115     Zijlstra, E.E., Siddig, Ali M., El Hassan, A.M., Hofland, H.W.C., El Toum, I.A., Satti, M. & Ghalib, H.W. The treatment of kala-azar with sodium stibogluconate in the Sudan: a randomized trial of three dosage regimens. Trans. Roy. Soc. Trop. Med. Hyg., 87: 307-309, 1993.

116     Zijlstra, E.E., El-Hassan, A.M. Leishmanin and tuberculin sensitivity in leishmaniasis in the Sudan, with special reference to kala-azar. Trans. Roy. Soc. Trop. Med. Hyg., 87, 425-427, 1993.

117     El Hassan, A.M., Hashim, F.A., Ali M.S., Ghalib, H.W. & Zijlstra, E.E. Kala-azar in western Upper Nile in the southern Sudan and its spread to a nomadic tribe from the north. Trans. Roy. Soc. Trop. Med. Hyg.,  87, 395-398, 1993a.

118     El Hassan, A.M., Zijlstra, E.E., Meredith, S.E.O., Ghalib, H.W. & Ismail, A. Identification of Leishmania donovani using a polymerase chain reaction in patient and animal material obtained from an area of endemic kala-azar in the Sudan. Acta. Trop., 55, 87-90, 1993b.

119     Meredith, S.E.O., Zijlstra, E.E., Schoone, G.J., Kroon, C.C.M., van Eys, G.J.J.M., Schaeffer, K.U, El Hassan, A.M., Lawyer, P.G. Development of the Polymerase Chain Reaction    for the detection and identification of Leishmania      parasites, and the application of the PCR for detection of parasites in clinical material. Arch. Inst. Pasteur Tunis, 1993, 70 (3-4), 419-431.

120     Ghalib, H.W., Piuvezam, M.R., Skeiky, N.W., Siddig, M., Hashim, F.A., El Hassan, A.M., Russo D.M. &  Reed, S.G.  Interleukin -10 production correlates with pathology in human Leishmania infection. J. Clin. Invest., 92, 324-329, 1993.

121      Kadaro, A.Y., Ghalib, H.W., Ali, M.S., El Toum, I.A., Ismail, A., Gaafar, A., Kemp, M., Kordofani, A.A.Y., Reed, S.G., El-Hassan, A.M., Kharazmi, A., Hag Ali, M. & Mustafa, M,D. Prevalence of cutaneous leishmaniasis along the Nile river north of Khartoum (Sudan) in the aftermath of an epidemic in 1985. Am. J. Trop. Med. Hyg. , 48,44-49, 1993.

122     El-Hassan, A.M., Gaafar, A.& Theander, T. Antigen presenting cells in human cutaneous leishmaniasis due to L.major. Clin. Exp. Immunol, 99,445-453,1994a.

123     El-Hassan, A.M., Yagi, H., El Kadaro, A. Y. & Zijlstra, E.E. Leishmaniasis of the nose caused by different species of Leishmania. Trop. Geogr. Med., 46, 33-36, 1994b.

124     Zijlstra, E. E., El Hassan, A. M., Ismail, A. & Ghalib, H.W. Endemic kala-azar in eastern Sudan: a longitudinal study on the incidence of clinical and subclinical disease and post-kala-azar dermal leishmaniasis.  Am. J. Trop. Med. Hyg., 51, 826-836,1994.

125     Gaafar, A., Fadl, A., El Kadaro, A. Y., El-Hassan, M. M., Kemp, M., Ismail, A.I.A., Morgos, S.A. & El-Hassan, A.M. Sporotrichoid cutaneous leishmaniasis due to Leishmania major of different zymodemes in the Sudan and Saudi Arabia: a comparative study. Trans. Roy. Soc. Trop. Med. Hyg, 88, 552-554, 1994.

126     El Hag, I.A., Hashim, F.A., El-Toum, I.A., Homeida, H., El Khalifa, M. & El-Hassan, A.M. Liver morphology and function in visceral leishmaniasis (kala-azar). J. Clin. Path, 47, 547-551, 1994.

127     Hashim, F.A.& El-Hassan, A.M. Tinea versicolor and visceral leishmaniasis. Int. J. Dermatol., 33, 258-259, 1994.

128     Hashim, F.A., Ali, M.S., Satti, M., El-Hassan, A.M., Ghalib, H.W., El-Safi, S. & El Hag, I.A. An outbreak of acute kala-azar in a nomadic tribe in western Sudan: features of the disease in a previously non-immune population. Trans. Roy. Soc. Trop. Med. Hyg, 88, 431-432, 1994.

129     Ibrahim, M.E., Hag-Ali, M., El-Hassan, A.M., Theander, T.G., & Kharazmi, A. Leishmania resistant to sodium stibogluconate: drug-associated macrophage-dependent killing. Parasitol. Res., 80, 569-574, 1994b.

130     Gaafar, A., El Kadaro, A.Y., Theander, T.G., Permin, H., Ismail, A., Kharazmi, A. & El-Hassan, A.M. the pathology of cutaneous leishmaniasis due to L. major in the Sudan. Am. J. Trop. Med. Hyg., 52, 438-442, 1995a.

131     Gaafar, A., Kharazmi, A., Ismail, A., Kemp, M., Hey, A., Christensen, C.B.V., Dafalla, M., El Kadaro, A.Y., El-Hassan, A.M., & Theander, T.G. Dichotomy of the T-cell response to antigens in patients suffering from cutaneous leishmaniasis: absence or scarcity of Th1 activity is associated with severe infections.  Clin. Exp. Immunol., 100, 239-235, 1995b.

132     Ahmed, A.I., Gadir, A.F.A., Hashim, F.A., El Kadaro, A.Y., Zijlstra, E.E. & El Hassan, A.M.  Clinical features and pathology of post-kala-azar dermal leishmaniasis (PKDL) in the Sudan.  Sud. Med. J., 33, 7-12, 1995.

133     El Hassan, A.M., Zijlstra, E.E., Ismail, A. & Ghalib, H.W.  Recent observations on the epidemiology of kala-azar in the Eastern and Central states of the Sudan.   Trop. Geogr. Med., 47, 151-156, 1995a.

134     El Hassan, A.M., Meredith, S.E.O., Yagi, H.I., Khalil, E.A.G., Ghalib, H.W., Abbas, K., Zijlstra, E.E., Kroon, C.C.M., Schoone, G.J. & Ismael, A. Sudanese mucosal leishmaniasis: epidemiology, clinical features, diagnosis, immune responses and treatment.  Trans. Roy. Soc. Trop. Med. Hyg. 89, 647-652, 1995b.

135     El Hassan, A.M., Zijlstra, E.E., Khalil, E.A.G., Ghalib, H.W. & Ismail, A.   The spectrum of Leishmania donovani infection in Salala village, Gedaref State.   A longitudinal study.  Sud. Med. J., 33, 63-66, 1995.

136     Hashim, F.A., Khalil, E.A.G., Ismail, A. & El Hassan, A.M.  Apparently successful treatment of two cases of post-kala-azar dermal leishmaniasis with liposomal amphotericin B.  Trans. Roy. Soc. Trop. Med. Hyg., 89, 440, 1995.

137     Zijlstra, E.E., El Hassan, A.M. & Ismael, A.  Endemic kala-azar in eastern Sudan:  post-kala-azar dermal leishmaniasis.  Am. J. Trop. Med. Hyg., 52, 299-305, 1995.

138     Hashim, F.A., Ahmed, A.E., El Hassan, A.M., Murtada, H., El Mubarak, H.Y., El Neim, I. & Ali, M.S.  Neurologic changes in visceral leishmaniasis.  Am. J. Trop. Med. Hyg.  52,149-154, 1995.

139     Ibrahim, M.E., Evans, D.A., Theander, T.G., El Hassan, A.M. & Kharazmi, A.   Diversity among Leishmania isolates from the Sudan: isoenzyme homogeneity of L. donovani versus heterogeneity of L. major.  Trans. Roy. Soc. Trop. Med. Hyg., 89, 366-369, 1995.

140     Ghalib, H.W., Whittle, J.A., Kubin, M., Hashim, F.A., El-Hassan, A.M., Grabstein, K.H., Trinchieri, G. & Reed, S.G.  Il-12 enhances Th1 - type response in human Leishmania donovani infections. J. of  Immunol. 154, 4623-4629, 1995.

141     El Hassan, A.M., Gaafar, A. & Theander, T.G.  Antigen presenting cells in human   cutaneous leishmaniasis due to Leishmania major.  Clin. Exp. Immunol., 99(3), 445-53, 1995. 

142     El Hassan, A.M., El toum, I.A., Batoul, M.A., El asha.  The marrara syndrome:       isolation of Linguatula serrata from a patient and viscera of goats.  Trans. Roy. Soc. Trop. Med. Hyg., 85, 309, 1995.

143     Fahal, A.H., El Hag, I.A., El-Hassan. A.M. & Hashim, F.A. Leishmanial cholecystitis and colitis in a patient with visceral leishmaniasis. Trans. Roy. Soc. Trop. Med. Hyg., 89, 284, 1995.

144     El Hassan, A.M., Hashim, F.A., Khalil, E.A.G., Abd Elgadir, A. & Kadaru, A. Neurological manifestations of visceral leishmaniasis (kala-azar).  A review and presentation of new findings. Lab. Medica Int., 13, 8-11, 1996.

145     Khalil, E. A. G., Zijlstra E. E., El-Hassan, A. M., & Davidson, R. N. Failure of a combination of tow antifungal drugs, terbanifine and itraconazole, in Sudanese post kala-azar dermal leishmaniasis . Trans. Roy. Soc. Trop. Med. Hyg., 90, 187-188, 1996.

146     Fahal, A.H., Yagi, H.I. & El Hassan, A.M.  Mycetoma induced palatal deficiency and pharyngeal plexus dysfunction.  Trans. Roy. Soc. Trop. Med. Hyg., 90, 676, 1996.

147     Fahal, A.H., Sheikh, H.E. & El Hassan, A.M.  Pathological fracture in mycetoma.  Trans. Roy. Soc. Trop. Med. Hyg., 90, 675, 1996.

148     Gafaar, A., Ismail, A., El Kadaro, A.Y., Hashim, E., Khalil, E.A., El Hassan, A.M.     Necrotizing and suppurative lymphadenitis in Leishmania major infections. Trop. Med. Int Health, 1(2), 243-50, Apr 1996.

149     El Hassan, A.M., El Kadaru, A.Y., Khalil, E.A.G. & El Hassan, M.M.  The pathology of cutaneous leishmaniasis in the Sudan:  a comparison with that in other geographical areas.  Ann. Trop. Med. Parasitol., 90 (5), 485, 1996.

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