worker distributes rat poison for typhus control in Gulfport Mississippi, ca. 1945.]]
("Murine typhus" or "fleaborne typhus") is caused by certain species of ''
Rickettsia '' - namely ''
R. Typhi '', transmitted by
Flea s infesting
Rat s (murine typhus), and less often ''
R. Felis '', transmitted by fleas carried by
Cat s or
Opossum s.
Symptom s include
Headache ,
Fever ,
Chill s,
Myalgia ,
Nausea ,
Vomiting , and
Cough .