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Novel phlebovirus with zoonotic potential isolated from ticks, Australia.

ABSTRACT: Recently discovered tick-borne phleboviruses have been associated with severe disease and death among persons in Asia and the United States. We report the discovery of a novel tick phlebovirus in Tasmania State, Australia, that is closely related to those zoonotic viruses found in Asia and North America.

SUBMITTER: Wang J

PROVIDER: S-EPMC4036776 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Novel phlebovirus with zoonotic potential isolated from ticks, Australia.

Wang Jianning J Selleck Paul P Yu Meng M Ha Wendy W Rootes Chrissy C Gales Rosemary R Wise Terry T Crameri Sandra S Chen Honglei H Broz Ivano I Hyatt Alex A Woods Rupert R Meehan Brian B McCullough Sam S Wang Lin-Fa LF

Emerging infectious diseases 20140601 6

Recently discovered tick-borne phleboviruses have been associated with severe disease and death among persons in Asia and the United States. We report the discovery of a novel tick phlebovirus in Tasmania State, Australia, that is closely related to those zoonotic viruses found in Asia and North America. ...[more]

PMID: 24856477

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Project description:BackgroundTo date, little has been documented about microorganisms harboured within Australian native ticks or their pathogenic potential. Recently, a Borrelia sp. related to the Relapsing Fever (RF) group was identified in a single tick removed from a wild echidna (Tachyglossus aculeatus). The present study investigated the presence of Borrelia in 97 Bothriocroton concolor ticks parasitizing echidnas in Queensland, New South Wales, and Victoria, Australia, using nested PCR with Borrelia-specific primers targeting the 16S rRNA (16S) and flaB genes.ResultsBorrelia-specific PCR assays confirmed the presence of a novel Borrelia sp. related to the RF and reptile-associated (REP) spirochaetes in 38 (39 %) B. concolor ticks. This novel Borrelia sp. was identified in 41 % of the B. concolor ticks in Queensland and New South Wales, but not in any ticks from Victoria. The resulting flaB sequences (407 bp) were 88 and 86 % similar to the flaB sequences from Borrelia turcica and Borrelia hermsii, respectively. Of the ticks confirmed as Borrelia-positive following the flaB assay, 28 were positive with the 16S assay. Phylogenetic analysis of the 16S sequences (1097 bp) suggests that these sequences belong to a novel Borrelia sp., which forms a unique monophyletic clade that is similar to, but distinct from, RF Borrelia spp. and REP-associated Borrelia spp.ConclusionsWe conclude that the novel Borrelia sp. identified in this study does not belong to the Borrelia burgdorferi (sensu lato) complex, and that the phylogenetic analysis of the partial 16S gene sequences suggests it forms a unique monophyletic cluster in the genus Borrelia, potentially forming a fourth major group in this genus associated with monotremes in Australia. However, a thorough molecular characterisation will be required to confirm the phylogenetic position of this unique Borrelia sp. The zoonotic potential and pathogenic consequences of this novel Borrelia sp. are unknown at the current time.

Dataset Information

Novel phlebovirus with zoonotic potential isolated from ticks, Australia.

Publications

Novel phlebovirus with zoonotic potential isolated from ticks, Australia.

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