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  • Title: Rickettsioses in sub-Saharan Africa.
    Author: Parola P.
    Journal: Ann N Y Acad Sci; 2006 Oct; 1078():42-7. PubMed ID: 17114679.
    Abstract:
    Although rickettsioses are among the oldest known vector-borne zoonoses, several species or subspecies of rickettsias have been identified in recent years as emerging pathogens throughout the world including in sub-Saharan Africa. To date, six tick-borne spotted fever group pathogenic rickettsias are known to occur in sub-Saharan Africa, including Rickettsia conorii conorii, the agent of Mediterranean spotted fever; R. conorii caspia, the agent of Astrakhan fever; R. africae, the agent of African tick-bite fever; R. aeschlimannii; R. sibirica mongolitimonae; and R. massiliae. On the other hand, fleas have long been known as vectors of the ubiquitous murine typhus, a typhus group rickettsiosis induced by R. typhi. However, a new spotted fever rickettsia, R. felis, has also been found to be associated with fleas, to be a human pathogen, and to be present in sub-Saharan Africa. Finally, R. prowazekii the agent of louse-borne epidemic typhus continues to strikes tens to hundreds of thousands of persons who live in Sub-Saharan with civil war, famine and poor conditions. We present an overview of these rickettsioses occurring in sub-Saharan Africa, focusing on the epidemiological aspects of emerging diseases.
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