Japanese Journal of Infectious Diseases
Online ISSN : 1884-2836
Print ISSN : 1344-6304
ISSN-L : 1344-6304
Short Communication
Spotted Fever Group Rickettsiae from Ticks Captured in Sudan
Chiharu MoritaAbdel Rahim Mohamed El HusseinEtsurou MatsudaKhalil Mohamed Ali Abdel GabbarYasukazu MuramatsuMagdi Badawi Abdel RahmanAli Mohamed Hassan EleragiShawgi Mohamed HassanAgnes Mumbi ChitamboHiroshi Ueno
Author information
JOURNAL FREE ACCESS

2004 Volume 57 Issue 3 Pages 107-109

Details
Abstract

Ticks were collected from ruminants in various areas of Sudan in 1998 and 2000. Primer pairs of rickettsial citrate synthase gene (gltA) and a spotted fever group (SFG) rickettsial 190-kDa surface antigen gene (rompA), respectively, were used for identification. Polymerase chain reaction (PCR)-positive products were used for DNA sequencing. The gltA gene was detected in 55% of the ticks examined (57/104). Among the 57 ticks studied, 19 were positive for the rompA gene. Thus, 18% of the ticks examined were found to be infected with SFG rickettsiae. The nucleotide sequences of the amplified rompA gene fragment of Hyalomma spp. and Amblyomma spp. were similar to those of Rickettsia aeschlimannii and Rickettsia africae, respectively. In this study, we succeeded in detecting the SFG rickettsiae gene in ticks, and established that there were at least two species of SFG rickettsiae in field ticks in Sudan.

Content from these authors
© 2004 Authors
Previous article Next article
feedback
Top