title: MORPHOLOGICAL STRUCTURE OF RICKETTSIAE.
abstract: The morphological structures of the rickettsiae of epidemic and endemic typhus fever, Rocky Mountain spotted fever, and Q fever are similar to one another and to certain bacteria. The rickettsial organisms in common with the elementary bodies of vaccinia virus and all bacteria would appear to have a limiting membrane which surrounds a substance that seems to be protoplasmic in nature; numbers of dense granules are embedded in the inner protoplasm.
authors.affiliation: Virus Laboratory, Army Medical School, Washington, D. C., and The Eldridge Reeves Johnson Foundation for Medical Physics, University of Pennsylvania, Philadelphia.
authors.forename: H
authors.initials: H
authors.lastname: Plotz
authors.forename: J E
authors.initials: JE
authors.lastname: Smadel
authors.forename: T F
authors.initials: TF
authors.lastname: Anderson
authors.forename: L A
authors.initials: LA
authors.lastname: Chambers