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Trench fever, a louse-borne disease caused by Bartonella quintana, is reemerging in homeless persons. Epidemic typhus is another life-threatening louse-borne disease caused by Rickettsia prowazekii and known to occur in conditions of war, famine, refugee camps, cold weather, poverty, or lapses in public health. We report the first case of seroconversion to R. prowazekii in a homeless person of Marseilles, France. This was associated with B. quintana bacteremia. Although no outbreaks of typhus have been notified yet in the homeless population, this disease is likely to reemerge in such situation.
Received April 14, 2004. Accepted for publication July 21, 2004.
Acknowledgments: The authors thank B. Amphoux and C. Lecam for serology and Western immunoblot testing. We also thank Karim Hechemy (NYS DOH, Infectious Diseases), Albany, NY, for reviewing the English.
Authors addresses: Sékéné Badiaga, Service dAccueil des Urgences, Hôpital Nord, Chemin des Bourrelly, 13915 Marseille Cedex 20, France. Philippe Brouqui and Sékéné Badiaga, Service des Maladies Infectieuses et Tropicales, Hôpital Nord, Chemin des Bourrelly, 13915 Marseille Cedex 20, France. Didier Raoult and Philippe Brouqui, Unité des Rickettsies, CNRS UMR 6020, IFR 48, faculté de médecine, 27 bd J Moulin, 13385 Marseille Cedex 5, France.
Reprint requests: Professeur Philippe Brouqui, Unité des Rickettsies, CNRS UMR 6020, IFR 48, faculté de médecine, 27 bd J Moulin, 13385 Marseille Cedex 5, France, E-mail: philippe.brouqui{at}medecine.univ-mrs.fr.
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