Source:http://linkedlifedata.com/resource/umls/id/C1015849
MSH: A genus of gram-negative, rod-shaped bacteria in the family ENTEROBACTERIACEAE. They exist only as primary endosymbionts of five species of TSETSE FLIES, found in specialized organelles called mycetomes. The bacteria supply crucial B vitamins (VITAMIN B COMPLEX) which the flies require for fertility.