an overview of remote sensing and gis for surveillance of mosquito vector habitats and risk assessment.this paper provides a brief nontechnical overview of the use of remote sensing to achieve multiple objectives, focusing on mosquito management. it also shows how geographic information systems, combined with remote sensing analysis, have the potential to assist in minimizing disease risk. examples are used from subtropical queensland, australia, where the salt marsh mosquito, aedes vigilax, and the freshwater species, culex annulirostris, are vectors of human arbovirus diseases such as ross rive ...19989673930
experimental infection and transmission of barmah forest virus by aedes vigilax (diptera: culicidae).aedes vigilax (skuse) mosquitoes colonized from townsville, queensland, australia, were fed on blood containing barmah forest virus (bf) isolated from the same species. the colony was susceptible to infection, with an id50 of 10(2.6) ccid50 per mosquito. infection and transmission rates for mosquitoes fed 10(3.5) ccid50 virus per mosquito varied from 58 to 100% and 36 to 100%, respectively, between days 3 and 13 after infection. titers in infected mosquitoes were high by 5 d after infection and ...199910083756
vector competence of mosquitoes (diptera: culicidae) from maroochy shire, australia, for barmah forest virus.mosquitoes were collected in light traps from maroochy shire and fed on blood containing the sympatric bf1611 strain of barmah forest virus (bf). saltmarsh aedes vigilax (skuse) and freshwater aedes procax (skuse) were highly susceptible to infection, with id50s of 10(1.7) and 10(1.5) african green monkey kidney (vero) cell culture infectious dose, 50% endpoint (ccid50) per mosquito, respectively, followed by aedes multiplex (theobald) and aedes funereus (theobald) with 10(2.5) and 10(3.2) ccid5 ...199910593091
barmah forest virus epidemic on the south coast of new south wales, australia, 1994-1995: viruses, vectors, human cases, and environmental 1995, the largest recorded outbreak of human disease resulting from infection with the mosquito transmitted alphavirus barmah forest (bf) virus occurred along the south coast of new south wales, australia. the virus was first isolated in early january from mosquitoes collected at batemans bay and predisposed the recognition of 135 human clinical cases. the cases of bf virus were identified initially from batemans bay during late january, and the majority (30%) of all cases came from this town ...199910593092
flavivirus isolations from mosquitoes collected from western cape york peninsula, australia, 1999-2000.after the 1st appearance of japanese encephalitis virus (je) on mainland australia in 1998, a study was undertaken to investigate whether je had become established in enzootic transmission cycles on western cape york peninsula. adult mosquitoes were collected during the late wet season from kowanyama and pormpuraaw in april 1999, and pormpuraaw and barr's yard in april 2000. despite processing 269,270 mosquitoes for virus isolation, no isolates of je were obtained. however, other flaviviruses co ...200314710742
occurrence of ross river virus and barmah forest virus in mosquitoes at shoalwater bay military training area, queensland, australia.shoalwater bay military training area (swbta), 2,713 km2 of land located 50-80 km north of rockhampton, queensland, australia, is used by australian and allied forces for training purposes. between march 1998 and february 2000, monthly collections of mosquitoes at 15 sites were conducted using carbon dioxide-baited traps to study the seasonal occurrence of mosquitoes and ross river virus (rrv) and barmah forest virus (bfv) in mosquitoes. a total of 72,616 mosquitoes, comprising 3,897 pools were ...200414989354
definition of ross river virus vectors at maroochy shire, australia.evidence of ross river (rr) virus infection in field-collected mosquitoes and data from laboratory vector competence experiments incriminated a range of mosquito species as important vectors of rr virus in maroochy shire, queensland, australia. nine rr and 2 barmah forest virus isolates were recovered from 27,529 mosquitoes collected in light traps from maroochy shire during 1996. nine of the 10 most abundant mosquito species collected in light traps were fed on blood containing the b94/20 strai ...200015218919
role of verrallina funerea (diptera: culicidae) in transmission of barmah forest virus and ross river virus in coastal areas of eastern australia.verrallina funerea (theobald) (diptera: culicidae) is a brackish water mosquito species found most commonly in indonesia, papua new guinea, and the northeastern coastal regions of australia. aspects of the vector competence of this species for barmah forest virus (family togaviridae, genus alphavirus, bfv) and ross river virus (family togaviridae, genus alphavirus, rrv), two medically important arboviruses in australia, were investigated. laboratory-reared ve. funerea were moderately susceptible ...200617162959
mosquito feeding patterns and natural infection of vertebrates with ross river and barmah forest viruses in brisbane, feeding patterns of mosquitoes were assessed through the identification of 865 blood meals collected from brisbane during 2000-2001. under natural conditions, mosquito feeding (including that of culex annulirostris, aedes vigilax, and aedes notoscriptus) was primarily on dogs (37.4%), but also on birds (18.4%), horses (16.8%), brushtail possums (13.3%), humans (11.6%), and cats, flying foxes, and macropods, depending on site. from 1997 to 1999, sera (n=1706) were collected from dogs, cats, ...200717360861
arboviruses isolated from mosquitoes collected from urban and peri-urban areas of eastern determine the presence of arboviruses in mosquito populations from major urban areas of eastern australia, a total of 67,825 mosquitoes, representing -60 species, was collected and tested from cairns, brisbane, and sydney between january 2005 and april 2008. mosquito pools were screened by inoculation onto mosquito cell cultures and the detection of viral antigen using a panel of flavivirus and alphavirus monoclonal antibodies in an enzyme-linked immunosorbent assay. suspect positive samples ...200919852216
a geospatial evaluation of aedes vigilax larval control efforts across a coastal wetland, northern territory, australia.adjacent to the northern suburbs of darwin is a coastal wetland that contains important larval habitats for aedes vigilax (skuse), the northern salt marsh mosquito. this species is a vector for ross river virus and barmah forest virus, as well as an appreciable human pest. in order to improve aerial larval control efforts, we sought to identify the most important vegetation categories and climatic/seasonal aspects associated with control operations in these wetlands. by using a generalized linea ...200920836835
discovery of cocirculating ross river virus and barmah forest virus at wide bay military training area, northeastern arbovirus surveillance military exercise was conducted to assess the risk of ross river virus (rrv) and barmah forest virus (bfv) in the australian defence force (adf) wide bay training area (wbta), northeastern australia, in april 2018. of the 5,540 female mosquitoes collected, 3,702 were screened for rrv and bfv by quantitative reverse transcription-polymerase chain reaction in a field laboratory. one pool of verrallina funerea was positive for rrv and 8 pools (7 pools of aedes vigilax and ...201931647704
integrating statistical and mechanistic approaches with biotic and environmental variables improves model predictions of the impact of climate and land-use changes on future mosquito-vector abundance, diversity and distributions in australia.changes to australia's climate and land-use patterns could result in expanded spatial and temporal distributions of endemic mosquito vectors including aedes and culex species that transmit medically important arboviruses. climate and land-use changes greatly influence the suitability of habitats for mosquitoes and their behaviors such as mating, feeding and oviposition. changes in these behaviors in turn determine future species-specific mosquito diversity, distribution and abundance. in this re ...202032967711
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