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Background and Objectives: The International Society of Blood Transfusion (ISBT) Working Party for Red Cell Immunogenetics and Blood Group Terminology meets in association with the ISBT congress and has met three times since the last report: at the international meetings held in Dubai, United Arab Emirates, September 2016 and Toronto, Canada, June 2018; and at a regional congress in Copenhagen, Denmark, June 2017 for an interim session., Methods: As in previous meetings, matters pertaining to blood group antigen nomenclature and classification were discussed. New blood group antigens were approved and named according to the serologic and molecular evidence presented., Results and Conclusions: Fifteen new blood group antigens were added to eight blood group systems. One antigen was made obsolete based on additional data. Consequently, the current total of blood group antigens recognized by the ISBT is 360, of which 322 are clustered within 36 blood groups systems. The remaining 38 antigens are currently unassigned to a known system. Clinically significant blood group antigens continue to be discovered, through serology/sequencing and/or recombinant or genomic technologies., (© 2018 International Society of Blood Transfusion.)

The article discusses an international forum from the journal "Vox Sanguinis" about donor notification and counselling techniques for transfusion-transmissible infections markers. Topics include notifying donors on positive screening test on the blood that has been donated, the role of counselling and donor notification in both blood safety and donor care, and the important elements for a notification message.

The Working Party has met twice since the last report: in Seoul, South Korea 2014, and in London, UK 2015, both in association with the International Society of Blood Transfusion ( ISBT) Congress. As in previous meetings, matters pertaining to blood group antigen nomenclature were discussed. Eleven new blood group antigens were added to seven blood group systems. This brings the current total of blood group antigens recognized by the ISBT to 346, of which 308 are clustered within 36 blood groups systems. The remaining 38 antigens are currently unassigned to a known blood group system. [ABSTRACT FROM AUTHOR]

The International Society of Blood Transfusion Working Party on red cell immunogenetics and blood group terminology convened during the International congress in Cancun, July 2012. This report details the newly identified antigens in existing blood group systems and presents three new blood group systems. [ABSTRACT FROM AUTHOR]

The article offers information on the meeting of the Working Party of the International Society of Blood Transfusion (ISBT) during the 2010 ISBT Congress in Berlin, Germany. It states that the group was renamed the Working Party on Red Cell Immunogenetics and Blood Group Terminology during the event. It also says that doctor Geoff Daniels gave terms of reference to advise the ISBT on red cell immunogenetics, and to maintain and monitor terminologies for blood group antigens.

A letter to the editor is presented commenting on the examination of allergic transfusion reactions by the basophil activation test.

Presents a chart that depicts the blood group terminology. System name; System symbol; Gene name; Chromosomal location.

Rare blood is generally defined as one that occurs at a frequency of 1:100~1000 individuals or less, and it is sometimes difficult to provide such blood types to patients because of their rarities. The Japanese Red Cross ( JRC) Society lists 46 rare blood phenotypes that are divided into two categories. The rare blood types listed in Category I occur much less frequently than those listed in Category II. We screen for rare blood cells using monoclonal antibodies (MoAbs). Since 1987, our blood centre has established 93 MoAbs (32 human and 61 murine) and has provided them to the other blood centres. Many of IgG MoAbs are available on the machine by saline or bromelin method by cross-linking with anti-human or anti-mouse IgG. Thus, more than 10 000 donors with rare blood phenotypes (Category I, 748; Category II, 9314) are registered in Japan. We freeze rare blood, particularly Category I types. Since 1977, a total of 576 units of rare blood with phenotypes Di(b−), D−−, Jr(a−), Ko and Lan-, etc. have been supplied to 23 international countries. Thus, the JRC contributes to the International Panel of Donors of Rare Blood Type ( IDP) which is maintained by the International Blood Group Reference Laboratory ( IBGRL) in Bristol, UK. The IDP provides information on the location of rare blood donors when they cannot be found in their respective countries. We also joined the ISBT Working Party on Rare Donors which handles all matters related to rare blood. Our rare blood donor programme is successful because of international co-operation. [ABSTRACT FROM AUTHOR]