The Endemic typhus reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Endemic typhus

Endemic typhus is caused by Rickettsia typhi, transmitted by fleas infesting rats, and, less often, Rickettsia felis, transmitted by fleas carried by cats or opossums. Symptoms include headache, fever, chills, joint pain, nausea, vomiting, and cough.

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