Title: | Screening of tick-borne pathogens in argasid ticks in Zambia : Expansion of the geographic distribution of Rickettsia lusitaniae and Rickettsia hoogstraalii and detection of putative novel Anaplasma species |
Authors: | Qiu, Yongjin Browse this author →KAKEN DB |
Simuunza, Martin Browse this author |
Kajihara, Masahiro Browse this author →KAKEN DB |
Chambaro, Herman Browse this author |
Harima, Hayato Browse this author →KAKEN DB |
Eto, Yoshiki Browse this author |
Simulundu, Edgar Browse this author |
Squarre, David Browse this author |
Torii, Shiho Browse this author |
Takada, Ayato Browse this author →KAKEN DB |
Hang'ombe, Bernard Mudenda Browse this author |
Sawa, Hirofumi Browse this author →KAKEN DB |
Sugimoto, Chihiro Browse this author →KAKEN DB |
Nakao, Ryo Browse this author →KAKEN DB |
Keywords: | Argasid tick |
Anaplasma |
Rickettsia lusitaniae |
Rickettsia hoogstraalii |
Zambia |
Issue Date: | 1-Jul-2021 |
Publisher: | Elsevier |
Journal Title: | Ticks and Tick-Borne Diseases |
Volume: | 12 |
Issue: | 4 |
Start Page: | 101720 |
Publisher DOI: | 10.1016/j.ttbdis.2021.101720 |
Abstract: | Ticks (Ixodidae and Argasidae) are important arthropod vectors of various pathogens that cause human and animal infectious diseases. Many previously published studies on tick-borne pathogens focused on those transmitted by ixodid ticks. Although there are increasing reports of viral pathogens associated with argasid ticks, information on bacterial pathogens they transmit is scarce. The aim of this molecular study was to detect and characterize Rickettsia and Anaplasmataceae in three different argasid tick species, Ornithodoros faini, Ornithodoros moubata, and Argas walkerae collected in Zambia. Rickettsia hoogstraalii and Rickettsia lusitaniae were detected in 77 % (77/100) of Ar. walkerae and 10 % (5/50) of O. faini, respectively. All O. moubata pool samples (n = 124) were negative for rickettsial infections. Anaplasmataceae were detected in 63 % (63/100) of Ar. walkerae and in 82.2 % (102/124) of O. moubata pools, but not in O. faini. Phylogenetic analysis based on the concatenated sequences of 16S rRNA and groEL genes revealed that Anaplasma spp. detected in the present study were distinct from previously validated Anaplasma species, indicating that the current knowledge on the diversity and vector range of Anaplasma spp. is incomplete. Our findings highlight new geographical records of R. lusitaniae and R. hoogstraalii and confirm that the wide geographic distribution of these species includes the African continent. The data presented here increase our knowledge on argasid tick-borne bacteria and contribute toward understanding their epidemiology. |
Rights: | ©2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/86187 |
Appears in Collections: | 獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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