| understanding productivity, a key to aedes aegypti surveillance. | the objective of this work was to define criteria that could be applied to achieve faster, more economical, and accurate assessment of vector populations for control of dengue viruses. during 1989-1990, 1,349 premises were surveyed in townsville, charters towers and mingela/ravenswood, queensland, australia. in each locality, 1.9-8.4% of premises contained three or more containers with aedes aegypti immature forms and were designated as key premises. comparison of surveys in townsville from 1989 ... | 1995 | 8561260 |
| surveillance of the mosquito aedes aegypti and its biocontrol with the copepod mesocyclops aspericornis in australian wells and gold mines. | a survey of the dengue vector mosquito aedes aegypti was undertaken using funnel traps to detect immature stages (larvae and pupae) in flooded disused mine shafts and wells in charters towers, queensland, northern australia. the town has a history of dengue fever since 1885 when goldminers were the first recorded victims. during the latest dengue epidemic in 1993, 2% of the population had laboratory-confirmed dengue virus type 2, despite source reduction of ae.aegypti breeding-sites at ground le ... | 1996 | 8744708 |
| two contiguous outbreaks of dengue type 2 in north queensland. | to investigate two outbreaks of dengue type 2 in north queensland, one in the torres strait beginning in late 1996, the other in a cairns suburb in early 1997. | 1998 | 9539900 |
| determinants of dengue 2 infection among residents of charters towers, queensland, australia. | dengue fever is caused by one of the four serotypes of the dengue virus and is transmitted by the urban mosquito aedes aegypti. in 1993, the city of charters towers in the tropical north of australia experienced an epidemic caused by the dengue 2 virus. a cross-sectional sample of 1,000 people was assessed for determinants of recent symptomatic dengue infection. after exclusion of people with prior exposure to dengue 2, a study group of 797 persons, including 196 patients with recent infection, ... | 1998 | 9850134 |
| vector competence of aedes notoscriptus (diptera: culicidae) for barmah forest virus and of this species and aedes aegypti (diptera: culicidae) for dengue 1-4 viruses in queensland, australia. | aedes notoscriptus (skuse) mosquitoes colonized from brisbane, queensland, australia, were fed on blood suspensions containing either barmah forest (bf) virus, dengue virus type 1 (den-1), dengue virus type 2 (den-2), dengue virus type 3 (den-3), or dengue virus type 4 (den-4). ae. notoscriptus was shown to be moderately susceptible to oral infection with bf virus, id50 = 10(3.3) ccid50 per mosquito, with titers in infected mosquitoes peaking 10 d after infection. bf virus transmission occurred ... | 1999 | 10467781 |
| an epidemic of dengue 3 in far north queensland, 1997-1999. | to describe an epidemic of dengue type 3 that occurred in far north queensland in 1997-1999 and its influence on the further development of dengue prevention and control strategies. | 2001 | 11270758 |
| epidemiological significanceof subterranean aedes aegypti (diptera: culicidae) breeding sites to dengue virus infection in charters towers, 1993. | the objective of this study wasto determine the epidemiological significance of subterranean mosquito breeding sites to the 1993 outbreak of dengue fever (type 2) in the northern queensland town of charters towers, australia. in recent studies on subterranean mosquito breeding, containers such as wells and service manholes have been shown to be important breeding sites to australia's only dengue vector, aedes aegypti (l.). this study demonstrates a direct epidemiological association between subt ... | 2002 | 11931248 |
| roof gutters: a key container for aedes aegypti and ochlerotatus notoscriptus (diptera: culicidae) in australia. | the contribution of roof gutters to aedes aegypti (l.) and ochlerotatus notoscriptus (skuse) pupal populations was quantified for the first time in cairns, australia. concurrent yard and roof surveys yielded an estimated 6,934 mosquito pupae, comprising four species. roof gutters were an uncommon but productive source of ae. aegypti in both wet season (n = 11) and dry season (n = 2) surveys, producing 52.6% and 39.5% of the respective populations. first story gutters accounted for 92.3% of the p ... | 2002 | 12408662 |
| enhanced vector competence of aedes aegypti (diptera: culicidae) from the torres strait compared with mainland australia for dengue 2 and 4 viruses. | australian aedes aegypti (l.) mosquitoes colonized from the torres strait and three mainland localities (charters towers, townsville, and cairns) were fed on blood suspensions containing dengue virus type 2 (den-2) or dengue virus type 4 (den-4). variation was found in oral susceptibility to den-2 (59 -99% infection) and den-4 (28-79% infection) among ae. aegypti assayed for virus at 8, 12, 16, or 20 d after ingestion of infected blood. torres strait ae. aegypti were the most susceptible to den- ... | 2003 | 14765675 |
| entomological investigations in a focus of dengue transmission in cairns, queensland, australia, by using the sticky ovitraps. | sticky ovitraps (patent pending) were used to sample female aedes aegypti (l.) weekly in a focus of dengue activity in cairns, queensland, australia. in february 2003, transmission of dengue virus serotype 2 began in the suburb of parramatta park, peaking in mid-march 2003. this suburb features many older, unscreened houses with high populations of ae. aegypti. highest densities (2-3.5 females per trap per week) were obtained during peak dengue transmission (january and february) before mosquito ... | 2004 | 14989339 |
| aedes (stegomyia) albopictus--a dengue threat for southern australia? | aedes albopictus, the so-called 'asian tiger mosquito,' which has invaded areas of the pacific, the americas, africa and europe, and been intercepted in various australian seaports in recent years, has now become established on a number of torres strait islands in northern queensland and threatens to invade mainland australia. as well as being a significant pest with day-biting tendencies, ae. albopictus is a vector of dengue viruses and is capable of transmitting a number of other arboviruses. ... | 2005 | 16220868 |
| genetic diversity of the dengue vector aedes aegypti in australia and implications for future surveillance and mainland incursion monitoring. | in february 2004, the discovery of an incursion of the dengue vector aedes aegypti into the town of tennant creek in the northern territory caused concern for the northern territory health authorities who proceeded to implement a commonwealth-funded eradication program. to determine the origin of the incursion, we performed a genetic analysis on ae. aegypti from several queensland and overseas localities. a comparison of dna sequences from the mitochondrial cytochrome oxidase 1 gene indicated th ... | 2005 | 16220869 |
| aedes aegypti population sampling using bg-sentinel traps in north queensland australia: statistical considerations for trap deployment and sampling strategy. | bg-sentinel mosquito traps were trialed as a tool for the rapid assessment (24-h collections) and routine monitoring (72-h collections) of adult aedes aegypti l. populations in north queensland. analysis of ae. aegypti collections using bg-sentinels set in suburban cairns for 24 h permitted the calculation of sample size for a range of precision levels. clusters of houses with bg-sentinels operating continuously for 15 d, with collections every 72 h, also permitted required sample size calculati ... | 2007 | 17427707 |
| infection and dissemination of dengue virus type 2 in aedes aegypti, aedes albopictus, and aedes scutellaris from the torres strait, australia. | to determine their relative roles in transmission of dengue virus (denv) in the torres strait region of northern australia, we examined infection and dissemination of a sympatric strain of dengue virus type 2 (denv-2) in aedes scutellaris, ae. albopictus, and ae. aegypti. in experiments using membrane feeders for virus exposure, infection rates were 83% and 43% for ae. scutellaris and ae. aegypti, respectively. salivary gland infection rates for both species were 43%. in experiments using pledge ... | 2007 | 18240514 |
| dengue in north queensland, 2005-2008. | the dengue vector, the mosquito aedes aegypti, is present in urban settings in north queensland, thereby putting the region at risk of outbreaks of dengue. this review describes some features of the 9 outbreaks of dengue that occurred in north queensland over the 4 years, 2005-2008. | 2009 | 19877538 |
| dengue - clinical and public health ramifications. | dengue virus infection is spread by the mosquito vector aedes aegypti and causes significant morbidity and mortality worldwide. in australia, it is an important cause of fever in the returned traveller and recent outbreaks have occurred in northern queensland. a comprehensive understanding of the clinical and public health ramifications of dengue infection is essential for general practitioners. | 2009 | 19893833 |
| a lethal ovitrap-based mass trapping scheme for dengue control in australia: i. public acceptability and performance of lethal ovitraps. | we report on the first field evaluation of the public acceptability and performance of two types of lethal ovitrap (lo) in three separate trials in cairns, australia. health workers were able to set standard lethal ovitraps (slos) in 75 and 71% of premise yards in the wet and dry season, respectively, and biodegradable lethal ovitraps (blos) in 93% of yards. public acceptance, measured as retention of traps by residents, was high for both trap types, with <9% of traps missing after 4 weeks. trap ... | 2009 | 19941595 |
| a lethal ovitrap-based mass trapping scheme for dengue control in australia: ii. impact on populations of the mosquito aedes aegypti. | in cairns, australia, the impacts on aedes aegypti l. (diptera: culicidae) populations of two types of 'lure & kill' (l&k) lethal ovitraps (los), the standard lethal ovitrap (slo) and the biodegradable lethal ovitrap (blo) were measured during three mass-trapping interventions. to assess the efficacy of the slo, two interventions (one dry season and one wet season) were conducted in three discrete areas, each lasting 4 weeks, with the following treatments: (i) slos (>200 traps, approximately 4/p ... | 2009 | 19941596 |