Most likely much deeper. Here is some more info on the deeper types that you mention. Essentially, there are slightly less important antigens that blood cells have, and for most transfusions we don't care about them. However, for people who need repeated transfusions (due to a disorder or illness), they have to be careful about those other antigens, because those patients can build up antibodies to them with repeated exposure. Those patients are more difficult to find compatible blood for, and lab grown blood could make it much easier to obtain the required type.
a3lt t1_iwdsbyu wrote
Reply to comment by SH4DOWSTR1KE_ in Scientists Begin Trials for Transfusions of Lab-Grown Blood Cells | The ability to grow blood cells of any needed type in a lab could be a game-changer. by chrisdh79
Most likely much deeper. Here is some more info on the deeper types that you mention. Essentially, there are slightly less important antigens that blood cells have, and for most transfusions we don't care about them. However, for people who need repeated transfusions (due to a disorder or illness), they have to be careful about those other antigens, because those patients can build up antibodies to them with repeated exposure. Those patients are more difficult to find compatible blood for, and lab grown blood could make it much easier to obtain the required type.