1. Inter-country workshop on Transfusion Medicine: Appropriate use of blood, blood components and blood derivatives. Amman, Jordan. 12th –16th March 1995. (EMRO/WHO).
2. Regional workshop on Distance learning: Distance learning materials for safe blood and blood products. Amman, Jordan. 20th –24th March 1995. (EMRO/WHO).
3. Regional meeting of Directors of Blood Transfusion Services. (EMRO) Tunisia, Tunisia. 25th –29th September 1995. (EMRO/WHO).
4. 1st European Conference on Tropical Medicine. Hamburg, Germany. 22nd –26th October 1995.
5. Regional meeting of Directors of Blood transfusion Services, EMRO/WHO.5th –9th November 1997, Abu Dabi, United Arab Emirates.
6. 3rd Residential Meeting of the Royal Society of Tropical Medicine & Hygiene, Cambridge, UK, 18th –20th September 1996.
7. Meeting of the Steering Committee on Vaccines for Leishmaniasis, TDR/WHO. Istanbul, Turkey, 1st –3rd May 1997.
8. First World Congress on Leishmaniasis, Istanbul, Turkey, 5th –9th May 1997.
9. 1st Product Development Team Meeting, TDR/WHO, Quito, Ecuador, 24th –27th September 1998.
10. 2nd Product Development Team Meeting, TDR/WHO, Bailadores, Venezuella, 14-16 October 1999.
11. Workshop on designing and developing clinical trials (for leishmaniasis vaccines development). TDR/WHO. Ouro Preto, Brazil, 17-20 April 2000.
12. The 3rd Leishmaniasis Vaccine Product Development Team (PDT) Meeting.TDR/WHO. Isfahan, Iran, 2-5 July 2000.
13. Oxford2000 ―New Challenges in Tropical Medicine & Parasitology.‖ Oxford, UK- 18-22 September2000.
14. The Fifth Conference of the Syrian Clinical Laboratory Association. Damascus, Syrian Arab republic.15th-17th September 2001.
15. Product Development Team, Vaccines for Leishmaniasis: Geneva, Switzerland, 5th December 2001. (Invited speaker).
16. Joint TDR/IDRI Leishmania Vaccine Clinical Trial Meeting: Geneva, Switzerland, 6th-7th December 2001.
17. Leishmaniasis Vaccine Product Development Team Meeting, Geneva, Switzerland, 24th – 25th October 2002.
18. Leishmaniasis Vaccine Product Development Team Meeting: Future Plans For Vaccine Development in Sudan. Khartoum, Sudan, 21st – 22nd February 2003.
19. Workshop on Developing a National Policy on Leishmaniasis Control in the Sudan. (Federal Ministry of Health, Sudan; WHO; MSF-Holland) Khartoum, Sudan, 23rd – 24th February 2003.
20. Conference on Endemic & Infectious Diseases in the Sudan: Ministry of Science and Technology, National Centre for Research; Tropical Medicine Research Institute; Instiute of Endemic Diseases, U. of Khartoum & TDR/WHO. Khartoum, Sudan, 5-8 May 2003.
21. The 2nd LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting ―Finding a new drug or combination of drugs for treatment of visceral leishmaniasis.‖ Khartoum, Sudan 25-26.08.2003. (Consultant).
22. The 3nd LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Addis Ababa, Ethiopia 12-13.05.2004. (Consultant)
23. GCP training course for the investigators of DNDi Geneva in preparation for ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Khartoum, Sudan 26-27.09.2004.
24. The 4th LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ KEMRI, Kenya, 8-9.10.2004. (Consultant).
25. Audiometry training course for the investigators of DNDi/Geneva in preparation for ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Khartoum, Sudan, November 2004.
26. The 2nd Lenasese Congress of Clinical Biology. 30th September 2nd October 2004. Beyriuth, Lebanon.
27. XXVIth Interantional Congress of the World Federation of Haemophilia. Bankok, Thailand, 17th 21st October 2004.
28. The 5th LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG  versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Khartoum, Sudan 11-12.03.2005. (Consultant).
29. The 6th LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Addis Ababa, Ethiopia 11-12.02.2006. (Consultant).
30. The 2nd DNDi consultative meeting on the pharmacokinetics of paromycin, paromycin/SSG combination in Sudanese patients with visceral leishmaniasisanalysis as part of the multicenter randomised clinical trial to test Paromomycin versus SSG versus a combination of SSG and Paromomycin for treatment of visceral leishmaniasis,8-9.06.2006, KEMRI, Nairobi, Kenya. (Consultant).
31. The 11th Conference of Pan Arab Association of Clinical Biology, Damascus, April/May; Syria 2006. XXVIIth Interantional Congress of the World Federation of Haemophilia.Vancouver, Canada .May 2006.
32. The 7th LEAP (Leishmaniasis East Africa Platform)/DNDi Geneva meeting ―Multicentre, randomized clinical trial on the efficacy of Paromomycin versus SSG versus SSG/Paromomycin combination for the treatment of visceral leishmaniasis.‖ Kampala, Uganda 15-16.03.2007. (Consultant).
33. The Annual Meeting of the Tunisian Association of Clinical Biology, Tunisia, Tunisia May 2007.
34. Leishmaniasis East Africa Platform/DNDi (LEAP/DNDi) principal investigators’ meeting, Nairobi, Kenya 8th to 9th May 2008.

35. Leishmaniasis East Africa Platform/DNDi (LEAP/DNDi) bi-annual meeting, Addis Ababa, Ethiopia August 2008.
36. The 8th Conference of Syrian Clinical Laboratory Association. Damascus, Syria 3rd 5t h October 2008.
37. Leishmaniasis East Africa Platform/DNDi (LEAP/DNDi) Principal investigators’ meeting, Lucknow, India 4th February 2008.
38. Annual meeting of the Scientific Advisory Committee for the elimination of Leishmaniasis in the Indian subcontinent. TDR/WHO. July 2009.
39. Leishmaniasis East Africa Platform/DNDi (LEAP/DNDi) Principal investigators’ meeting, Nairobi, Kenya 9th to 11th November 2009.
40. The 12th Scientific Conference of the Arab Federation of Clinical Chemistry, Beirut, Lebanon December 2009.
41. Leishmaniasis East Africa Platform/DNDi (LEAP/DNDi) consultative meeting, Kampala, Uganda 17-20 March 2010.
42. The Jordanian Conference of Biological and Medical Laboratory Sciences, Jordan Amman, June 2010.
43. Africa City of Technology Summer Schools. Khartoum, Sudan 13-17 June 2010 “A week on Recent Trends on Nanobiotechnology ―Nanobiotechnology: SMALL Science, BIG Consequences‖ Guest speaker.
44. 14th Leishmaniasis East Africa Platform consultative meeting, Khartoum, Sudan 2nd October – 4th October 2010.
45. 9th Scientific conference of the Syrian Association of Clinical Laboratory Medicine, 23rd 26th October 2010. Session Chairperson & oral presentation.
46. DNDi/Geneva Partners’ meeting, Delha, India, December 2010.
47. The 21st International Congress of Clinical Chemistry & Laboratory Medicine and the 19th IFCC-ECC European Congress of Clinical chemistry & Laboratory Medicine. Berlin, Germany: May2011. Guest speaker.
48. DNDi Stakeholders & 16th LEAP meetings, Nairobi, Kenya 20-24 September 2011.
49. 17th Leishmaniasis East Africa Platform (LEAP) Meeting, Kampala, Uganda, February 28-29, 2012.

50. 18th Leishmaniasis East Africa Platform_DNDi/10th Principal Investigators Meeting, Khartoum-Sudan 2nd – 3rd September 2012.