In October 2016, Rwanda's Ministry of Health began an experiment with drones to transport vaccines and supplies of rare blood types. (sciencemag.org)
Also, researchers could carefully select which blood types to culture with each batch of stem cells, creating stockpiles of needed blood products for people with extremely rare blood types whose blood cell makeup makes it challenging to find good blood matches for transfusions because they would reject most other types of blood. (scientificamerican.com)
With slightly more time (but still in less than two minutes) the assay was able to identify multiple rare blood types. (sciencedaily.com)