Bell Ej

A toxic substance associated with the rickettsias of the spotted fever group.

Bell Ej, Pickens Eg, 1953 .

Spotted fever vaccine; potency assay by direct challenge of vaccinated mice with toxin of Rickettsia rickettsii.

Stoenner Hg, Bell Ej, 1961 .

Enteroviruses in human disease.

N R Grist, N. Grist, F. Assaad, 1978, Progress in medical virology. Fortschritte der medizinischen Virusforschung. Progres en virologie medicale.

Isolation and characterization of Rocky Mountain Spotted Fever Rickettsiae from the rabbit tick Haemaphysalis leporis-palustris Packard.

D. Lackman, R. R. Parker, E. Pickens, 1951, Public health reports.