Medmicro: Rickettsiae 
Scientific and medical information on the organisms and the diseases they cause.
http://gsbs.utmb.edu/microbook/ch038.htmeMedicine - Mediterranean Spotted Fever
Article by Pierre A Dorsainvil, MD. Also known as boutonneuse fever, is transmitted by the dog tick Rhipicephalus sanguineus.
http://www.emedicine.com/med/topic1412.htm
CDC Travelers' Health Information on Rickettsial Infections
Factsheet on the various rickettsial diseases a traveler might encounter.
http://www.cdc.gov/travel/diseases/rickettsial.htm
