Definition of Ross River Virus Vectors at Maroochy Shire, Australia

Ryan, Peter; Do, Kim‐Anh; Kay, Brian H.

doi:10.1603/0022-2585-37.1.146

Cited by 61 publications

(39 citation statements)

References 13 publications

(22 reference statements)

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“…vigilax in saltmarsh regions and Cx. annulirostris inland that transmit at rates of up to 100% (Ballard and Marshall 1986), 57% (Kay 1982), and 46% (Ryan et al 2000), respectively. These three species are also believed to be the main vectors for BFV.…”

Section: Mosquitoes Associated With Virusmentioning

confidence: 99%

Converting Mosquito Surveillance to Arbovirus Surveillance with Honey-Baited Nucleic Acid Preservation Cards

Flies

Toi

Weinstein

et al. 2015

Vector-Borne and Zoonotic Diseases

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Spatially and temporally accurate information about infectious mosquito distribution allows for pre-emptive public health interventions that can reduce the burden of mosquito-borne infections on human populations. However, the labile nature of arboviruses, the low prevalence of infection in mosquitoes, the expensive labor costs for mosquito identification and sorting, and the specialized equipment required for arbovirus testing can obstruct arbovirus surveillance efforts. The recently developed techniques of testing mosquito expectorate using honey-baited nucleic acid preservation cards or sugar bait stations allows a sensitive method of testing for infectious, rather than infected, mosquito vectors. Here we report the results from the first large-scale incorporation of honey-baited cards into an existing mosquito surveillance program. During 4 months of the peak virus season (January-April, 2014) for a total of 577 trap nights, we set CO2-baited encephalitis vector survey (EVS) light traps at 88 locations in South Australia. The collection container for the EVS trap was modified to allow for the placement of a honey-baited nucleic acid preservation card (FTA™ card) inside. After collection, mosquitoes were maintained in a humid environment and allowed access to the cards for 1 week. Cards were then analyzed for common endemic Australian arboviruses using a nested RT-PCR. Eighteen virus detections, including 11 Ross River virus, four Barmah Forest virus, and three Stratford virus (not previously reported from South Australia) were obtained. Our findings suggest that adding FTA cards to an existing mosquito surveillance program is a rapid and efficient way of detecting infectious mosquitoes with high spatial resolution.

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Section: Mosquitoes Associated With Virusmentioning

confidence: 99%

Converting Mosquito Surveillance to Arbovirus Surveillance with Honey-Baited Nucleic Acid Preservation Cards

Flies

Toi

Weinstein

et al. 2015

Vector-Borne and Zoonotic Diseases

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“…Other species that might be vectors are also considered. RRV has been isolated from over 30 mosquito species in Australia (27,79,114,158,167,173). The vector status of most of these is unknown, because data on experimental infection and transmission and association with human infection, which are requisites to establish vector status, are lacking (123,193).…”

Section: Mosquito Vectorsmentioning

confidence: 99%

“…Marshall and Miles (130) and Russell (167) agree that C. annulirostris is predominantly an inland rural vector. However, RRV isolates have been obtained from C. annulirostris trapped in Queensland coastal areas, and it undoubtedly also plays a vector role in these areas (79,158,173).…”

Section: Mosquito Vectorsmentioning

confidence: 99%

Ross River Virus Transmission, Infection, and Disease: a Cross-Disciplinary Review

2001

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SUMMARY Ross River virus (RRV) is a fascinating, important arbovirus that is endemic and enzootic in Australia and Papua New Guinea and was epidemic in the South Pacific in 1979 and 1980. Infection with RRV may cause disease in humans, typically presenting as peripheral polyarthralgia or arthritis, sometimes with fever and rash. RRV disease notifications in Australia average 5,000 per year. The first well-described outbreak occurred in 1928. During World War II there were more outbreaks, and the name epidemic polyarthritis was applied. During a 1956 outbreak, epidemic polyarthritis was linked serologically to a group A arbovirus (Alphavirus). The virus was subsequently isolated from Aedes vigilax mosquitoes in 1963 and then from epidemic polyarthritis patients. We review the literature on the evolutionary biology of RRV, immune response to infection, pathogenesis, serologic diagnosis, disease manifestations, the extraordinary variety of vertebrate hosts, mosquito vectors, and transmission cycles, antibody prevalence, epidemiology of asymptomatic and symptomatic human infection, infection risks, and public health impact. RRV arthritis is due to joint infection, and treatment is currently based on empirical anti-inflammatory regimens. Further research on pathogenesis may improve understanding of the natural history of this disease and lead to new treatment strategies. The burden of morbidity is considerable, and the virus could spread to other countries. To justify and design preventive programs, we need accurate data on economic costs and better understanding of transmission and behavioral and environmental risks.

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“…Its association with human health risks, such as Ross River Virus (Ryan et al 2000), has made it a focus for studies on saltmarshes in Australia (Dale et al 1993;Ritchie 1994;Ritchie and Jennings 1994;Gislason and Russell 1997;Turner and Streever 1997;Chapman et al 1999;Turner and Streever 1999;Webb and Russell 1999). It is clear, however, that spiders and insects from most of their orders (Homoptera, Hemiptera, Diptera, Coleoptera, Orthoptera, Hymenoptera and Lepidoptera) are common on saltmarshes (Hutchings and Recher 1974;Marsh 1982;Clarke and Miller 1983; Laegdsgaard unpublished data).…”

Section: Terrestrial Invertebratesmentioning

confidence: 99%

Ecology, disturbance and restoration of coastal saltmarsh in Australia: a review

Laegdsgaard¹

2006

Wetlands Ecol Manage

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It is clear that saltmarshes are a unique and important component of the coastal biosphere of Australia. Their contribution ranges from stabilisation of fine sediments and providing an excellent protective buffer between land and sea, to their diverse blend of terrestrial and marine fauna. Further, saltmarsh plants are highly specialised and adapted to fill a harsh niche allowing them to act in roles that other vegetation types cannot. Saltmarsh habitats are recognised for their importance to migratory waders under the Ramsar convention, but it is becoming increasingly evident that they are also important to a variety of commercially valuable fish and native mammal species. Activities that are detrimental to saltmarshes continue and need to be addressed in order to conserve remaining saltmarsh areas. In general, urbanisation of the catchment has lead to filling of saltmarshes, tidal restriction, use by recreational vehicles, grazing, trampling and increased sedimentation and nutrient runnoff allowing colonisation and invasion of mangroves. These disturbances have a number of ecological consequences ranging from weed infestation to complete changes in the species composition and ecology. Reversing the disturbance is not always simple and can require extensive groundwork to be successful. Rehabilitation of existing saltmarsh areas has been a successful means to enhance this habitat. In general, it requires relatively little effort to remove weeds and fence off areas to regenerate naturally. Saltmarsh areas have been shown to respond well to this type of manipulation. Restoration and creation require substantial effort and planning to ensure a successful outcome. However, given the right environmental combinations of elevation, tide and salinity, saltmarsh will establish and grow. To speed the process transplantation of saltmarsh plants can be considered either from donor sites or plants propagated in green houses.

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Definition of Ross River Virus Vectors at Maroochy Shire, Australia

Cited by 61 publications

References 13 publications

Converting Mosquito Surveillance to Arbovirus Surveillance with Honey-Baited Nucleic Acid Preservation Cards

Converting Mosquito Surveillance to Arbovirus Surveillance with Honey-Baited Nucleic Acid Preservation Cards

Ross River Virus Transmission, Infection, and Disease: a Cross-Disciplinary Review

Ecology, disturbance and restoration of coastal saltmarsh in Australia: a review

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