NONPATHOGENIC RICKETTSIAS RELATED TO THE SPOTTED FEVER GROUP ISOLATED FROM TICKS, DERMACENTOR VARIABILIS AND DERMACENTOR ANDERSONI FROM EASTERN MONTANA.

NONPATHOGENIC RICKETTSIAS RELATED TO THE SPOTTED FEVER GROUP ISOLATED FROM TICKS, DERMACENTOR VARIABILIS AND DERMACENTOR ANDERSONI FROM EASTERN MONTANA.