Identification of rickettsial pathogens in ixodid ticks in northern Senegal

The spotted fevers, caused by the Rickettsia bacteria, are a group of emerging diseases that are responsible for significant human morbidity. In Africa, the distribution of different species of Rickettsia in their tick vectors is poorly studied. We have collected 1169 hard ticks from 5 different spe...

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Bibliographic Details
Published in:Ticks and tick-borne diseases 2014-09, Vol.5 (5), p.552-556
Main Authors: Sambou, Masse, Faye, Ngor, Bassène, Hubert, Diatta, Georges, Raoult, Didier, Mediannikov, Oleg
Format: Article
Language:English
Subjects:
Animals
Humans
Ixodidae - microbiology
Rickettsia - classification
Rickettsia - isolation & purification
Senegal - epidemiology
Species Specificity
Tick Infestations - epidemiology
Tick Infestations - veterinary
Tick-Borne Diseases - epidemiology
Tick-Borne Diseases - microbiology
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Summary:The spotted fevers, caused by the Rickettsia bacteria, are a group of emerging diseases that are responsible for significant human morbidity. In Africa, the distribution of different species of Rickettsia in their tick vectors is poorly studied. We have collected 1169 hard ticks from 5 different species in the northern Senegal, close to the Saharan border. In a far northern collection site, corresponding to the Rickettsia africae distribution area, we collected three Amblyomma variegatum ticks infected by R. africae. Rickettsia africae was also identified in a Hyalomma marginatum rufipes tick, which may represent the secondary host for the pathogen. Rickettsia aeschlimannii was identified in H. m. rufipes, Rhipicephalus evertsi evertsi, and Hyalomma impeltatum ticks.
ISSN:1877-959X
1877-9603
DOI:10.1016/j.ttbdis.2014.04.002