Nk’ uko aba bashakashatsi babitangaje mu kinyamakuru Sciencealert ngo uru rugingo bavumbuye ni ruto cyane ari nayo mpamvu bakeka yatumye abashakashatsi babayeho nta numwe wigeze abona uru rugingo ruri lymph nodes.
Uru rugingo rushya ngo rugizwe na cellules nyinshi zo mu bwoko bwa B zifite ubushobozi bwo kwihindura memory cells.
Aba bashakashatsi bemeje ko uru rugingo rushya batari baha izina rukora nk’ ikusanyirizo rya za lymphocyte rugatuma zibasha guhangana na ubwandu na amavirusi.