murine typhus

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A mild, acute, endemic form of typhus caused by the microorganism Rickettsia typhi, transmitted from rats to humans by fleas and characterized by fever, headache, and muscular pain.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun acute infection caused by rickettsia and transmitted by the bite of an infected flea; characterized by fever and chills and muscle aches and a rash