Rickettsia africae in Hyalomma dromedarii ticks from sub-Saharan Algeria
2012
Kernif, Tahar | Djerbouh, Amel | Mediannikov, Oleg | Ayach, Bouhous | Rolain, Jean-Marc | Raoult, Didier | Parola, Philippe | Bitam, Idir
Spotted fever group (SFG) rickettsioses are caused by obligate, intracellular Gram-negative bacteria of the genus Rickettsia. In recent years, several species and subspecies of rickettsias have been identified as emerging pathogens throughout the world, including sub-Saharan Africa. We report here the detection of Rickettsia africae, the agent responsible for African tick-bite fever, by amplification of fragments of gltA and ompA genes and multi-spacer typing from Hyalomma dromedarii ticks collected from the camel Camelus dromedarius in the Adrar and Béchar region (sub-Saharan Algeria). To date, R. africae has been associated mainly with Amblyomma spp. The role of H. dromedarii in the epidemiology of R. africae requires further investigation.
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