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1.  A profile of rare bloods in Oman 
doi:10.4103/0973-6247.115598
PMCID: PMC3757785  PMID: 24014955
3.  Prevalence of Diego blood group antigen and the antibody in three ethnic population groups in Klang valley of Malaysia 
Background:
Diego blood group antigen, Di(a), is very rare among Caucasians and Blacks, but relatively common among the South American Indians and Asians of Mongolian origin. The antibody to Di(a) is clinically significant to cause hemolytic disease in a new-born or hemolytic transfusion reaction.
Objectives:
This study was designed to determine the prevalence of Di(a) antigen among the blood donors from the three major ethnic groups in Klang Valley of Malaysia as well as to find an incidence of an antibody of the Diego antigen, anti-Di(a), in a tertiary care hospital to ascertain the need to include Di(a+) red cells for an antibody screen cell panel.
Materials and Methods:
Serological tests were performed by column agglutination technique using commercial reagents and following instruction as per kit insert.
Results:
Di(a) antigen was found with a frequency of 2.1% among the Malaysians donors in three ethnic groups viz, Malay, Chinese and Indian. It was present among 1.25% of 401 Malay, 4.01% of Chinese and 0.88% of 114 Indian origin donors. None of the 1442 patients, including 703 antenatal outpatients, had anti-Di(a) in serum.
Conclusion:
The prevalence of Di(a) antigen was found among the donors of all the three ethnic background with varying frequency. Inclusion of Di(a+) red cells in routine antibody screening program would certainly help in detection of this clinically significant antibody and to provide safe blood transfusion in the Klang Valley, though the incidence of antibody appears to be very low in the region.
doi:10.4103/0973-6247.106725
PMCID: PMC3613656  PMID: 23559760
Anti-Di(a); Di(a); Klang Valley; Malaysia; prevalence
4.  A profile of rare bloods in India and its impact in blood transfusion service 
From transfusion point of view, a rare blood is the one which lacks a high-frequency antigen as well as the one who lacks multiple common antigens and such blood donations help in transfusion to those recipients having alloantibodies to corresponding antigens. In India, we have about four such kinds of phenotypes potential enough to pose problems in providing blood to the recipients having these phenotypes. Besides, there are other four kinds of rare bloods that pose seldom problems in blood supply, though some of these may cause problems in interpretation of results on assigning proper blood groups for a person.
doi:10.4103/0973-6247.95050
PMCID: PMC3353629  PMID: 22623842
Impact in transfusion service; India; rare blood
5.  Development of blood transfusion service in Sultanate of Oman 
Background:
Sultanate of Oman is geographically situated in south-west of Asia, having common borders on western side by the land with United Arab Emirates, Saudi Arabia and Yemen and with the Arabian Sea and the Gulf of Oman in the east and the north respectively. The country enjoys one of the best health care facilities including blood transfusion services in the region.
Study design:
Information was collected through informal personal interviews, digging out the past records, and the report presentations at various forums.
Results:
A modest start by providing blood units through import, the country is now self-reliant on procuring blood units from voluntary non-remunerate blood donors within the sultanate. A steady growth of blood banks is witnessed in every aspect of blood banking including blood collection, blood processing and supply. Various modalities are adapted in promoting voluntary blood donation programme.
Conclusion:
Sultanate of Oman has created one of the best blood transfusion services in the region in providing safe blood for transfusion through voluntary donation, a use of blood components and irradiating blood products.
doi:10.4103/0973-6247.59390
PMCID: PMC2847343  PMID: 20376265
Blood transfusion services; voluntary blood donation; national blood transfusion services; Sultanate of Oman

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