Abstract：
:Ticks are blood-feeding arthropods and can harbor several bacteria, including the worldwide zoonotic disease Q-fever agent Coxiella burnetii. Recent studies have reported a distinct group of Coxiella mostly associated with Ixodidae ticks, including the primary endosymbionts of Amblyomma americanum. In the present work, a screening for Coxiella infection was performed by 16S ribosomal DNA (rDNA) gene analyses in 293 tick samples of 15 different species sampled worldwide, including Brazil, Colombia, Kenya, and China. Different Coxiella phylotypes were identified, and these putative symbiotic bacteria were detected in ten different Amblyomma tick species. Approximately 61 % of Rhipicephalus sanguineus and ∼37 % of Rhipicephalus microplus DNA samples were positive for Coxiella. Sequence analysis and phylogenetic reconstruction grouped all the detected Coxiella with Coxiella-like symbionts from different Ixodidae ticks. This well-defined clade clearly excludes known phylotypes of C. burnetii pathogens and other Coxiella spp. detected in different environmental samples and other invertebrate hosts.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Machado-Ferreira E,Vizzoni VF,Balsemão-Pires E,Moerbeck L,Gazeta GS,Piesman J,Voloch CM,Soares CAdoi
10.1007/s00436-016-5230-zsubject
Has Abstractpub_date
2016-12-01 00:00:00pages
4691-4699issue
12eissn
0932-0113issn
1432-1955pii
10.1007/s00436-016-5230-zjournal_volume
115pub_type
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