https://www.123articleonline.com/rss/author/366360/lisa-corriveauArticles written by Lisa Corriveau from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1329035/all-facts-you-need-to-know-about-the-newly-discovered-blood-group-er In addition to the old familiar blood groups (A, B, AB, and O), scientists have discovered a new one. The name of this new blood group is 'Er' and in it, there are 5 blood types.