| expectoration of flaviviruses during sugar feeding by mosquitoes (diptera: culicidae). | biological transmission of arboviruses to a vertebrate host occurs when virions are expelled along with saliva during blood feeding by a hematophagous arthropod. we undertook experiments to determine whether mosquitoes expectorate flaviviruses in their saliva while sugar feeding. batches of culex annulirostris skuse and culex gelidus theobald (diptera: culicidae) were orally infected with japanese encephalitis (family flaviviridae, genus flavivirus, jev), kunjin (family flaviviridae, genus flavi ... | 2007 | 17915518 |
| vector competence of australian mosquito species for a north american strain of west nile virus. | since the establishment of west nile virus (wnv) into the united states, concern has arisen that this virus may also pose a serious threat to australian biosecurity. the vector competence of 19 australian mosquito species for a north american strain of wnv was evaluated. mosquitoes collected from cairns, brisbane, and sydney were exposed to blood containing 10(4.0+/-0.3) cell culture infectious dose(50)/mosquito wnv that was isolated from a crow during the 1999 new york outbreak. mosquitoes were ... | 2008 | 18973445 |
| the insect-specific palm creek virus modulates west nile virus infection in and transmission by australian mosquitoes. | insect-specific viruses do not replicate in vertebrate cells, but persist in mosquito populations and are highly prevalent in nature. these viruses may naturally regulate the transmission of pathogenic vertebrate-infecting arboviruses in co-infected mosquitoes. following the isolation of the first australian insect-specific flavivirus (isf), palm creek virus (pcv), we investigated routes of infection and transmission of this virus in key australian arbovirus vectors and its impact on replication ... | 2016 | 27457250 |
| role of enhanced vector transmission of a new west nile virus strain in an outbreak of equine disease in australia in 2011. | in 2011, a variant of west nile virus kunjin strain (wnvkun) caused an unprecedented epidemic of neurological disease in horses in southeast australia, resulting in almost 1,000 cases and a 9% fatality rate. we investigated whether increased fitness of the virus in the primary vector, culex annulirostris, and another potential vector, culex australicus, contributed to the widespread nature of the outbreak. | 2014 | 25499981 |