Last data update: May 06, 2024. (Total: 46732 publications since 2009)
Records 1-7 (of 7 Records) |
Query Trace: Moore CG[original query] |
---|
Design for mosquito abundance, diversity, and phenology sampling within the National Ecological Observatory Network
Hoekman D , Springer YP , Barker CM , Barrera R , Blackmore MS , Bradshaw WE , Foley DH , Ginsberg HS , Hayden MH , Holzapfel CM , Juliano SA , Kramer LD , LaDeau SL , Livdahl TP , Moore CG , Nasci RS , Reisen WK , Savage HM . Ecosphere 2016 7 (5) e01320 The National Ecological Observatory Network (NEON) intends to monitor mosquito populations across its broad geographical range of sites because of their prevalence in food webs, sensitivity to abiotic factors, and relevance for human health. We describe the design of mosquito population sampling in the context of NEON's long-term continental scale monitoring program, emphasizing the sampling design schedule, priorities, and collection methods. Freely available NEON data and associated field and laboratory samples, will increase our understanding of how mosquito abundance, demography, diversity, and phenology are responding to land use and climate change. |
Reported distribution of Aedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus in the United States, 1995-2016 (Diptera: Culicidae)
Hahn MB , Eisen RJ , Eisen L , Boegler KA , Moore CG , McAllister J , Savage HM , Mutebi JP . J Med Entomol 2016 53 (5) 1169-1175 Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus (Skuse) transmit arboviruses that are increasing threats to human health in the Americas, particularly dengue, chikungunya, and Zika viruses. Epidemics of the associated arboviral diseases have been limited to South and Central America, Mexico, and the Caribbean in the Western Hemisphere, with only minor localized outbreaks in the United States. Nevertheless, accurate and up-to-date information for the geographical ranges of Ae. aegypti and Ae. albopictus in the United States is urgently needed to guide surveillance and enhance control capacity for these mosquitoes. We compiled county records for presence of Ae. aegypti and Ae. albopictus in the United States from 1995-2016, presented here in map format. Records were derived from the Centers for Disease Control and Prevention ArboNET database, VectorMap, the published literature, and a survey of mosquito control agencies, university researchers, and state and local health departments. Between January 1995 and March 2016, 183 counties from 26 states and the District of Columbia reported occurrence of Ae. aegypti, and 1,241 counties from 40 states and the District of Columbia reported occurrence of Ae. albopictus During the same time period, Ae. aegypti was collected in 3 or more years from 94 counties from 14 states and the District of Columbia, and Ae. albopictus was collected during 3 or more years from 514 counties in 34 states and the District of Columbia. Our findings underscore the need for systematic surveillance of Ae. aegypti and Ae. albopictus in the United States and delineate areas with risk for the transmission of these introduced arboviruses. |
Tick-, mosquito-, and rodent-borne parasite sampling designs for the National Ecological Observatory Network
Springer YP , Hoekman D , Johnson PTJ , Duffy PA , Hufft RA , Barnett DT , Allan BF , Amman BR , Barker CM , Barrera R , Beard CB , Beati L , Begon M , Blackmore MS , Bradshaw WE , Brisson D , Calisher CH , Childs JE , Diuk-Wasser MA , Douglass RJ , Eisen RJ , Foley DH , Foley JE , Gaff HD , Gardner SL , Ginsberg HS , Glass GE , Hamer SA , Hayden MH , Hjelle B , Holzapfel CM , Juliano SA , Kramer LD , Kuenzi AJ , LaDeau SL , Livdahl TP , Mills JN , Moore CG , Morand S , Nasci RS , Ogden NH , Ostfeld RS , Parmenter RR , Piesman J , Reisen WK , Savage HM , Sonenshine DE , Swei A , Yabsley MJ . Ecosphere 2016 7 (5) e01271 Parasites and pathogens are increasingly recognized as significant drivers of ecological and evolutionary change in natural ecosystems. Concurrently, transmission of infectious agents among human, livestock, and wildlife populations represents a growing threat to veterinary and human health. In light of these trends and the scarcity of long-term time series data on infection rates among vectors and reservoirs, the National Ecological Observatory Network (NEON) will collect measurements and samples of a suite of tick-, mosquito-, and rodent-borne parasites through a continental-scale surveillance program. Here, we describe the sampling designs for these efforts, highlighting sampling priorities, field and analytical methods, and the data as well as archived samples to be made available to the research community. Insights generated by this sampling will advance current understanding of and ability to predict changes in infection and disease dynamics in novel, interdisciplinary, and collaborative ways. |
Temporal and spatial variability of entomological risk indices for West Nile virus infection in northern Colorado: 2006-2013
Fauver JR , Pecher L , Schurich JA , Bolling BG , Calhoon M , Grubaugh ND , Burkhalter KL , Eisen L , Andre BG , Nasci RS , LeBailly A , Ebel GD , Moore CG . J Med Entomol 2015 53 (2) 425-34 West Nile virus (WNV) is enzootic in northern Colorado. Annual surveillance activities in Fort Collins, CO, include collecting female Culex mosquitoes and testing them for the presence of WNV RNA in order to calculate 1) Culex female abundance, 2) WNV infection rate, and 3) the vector index (VI). These entomological risk indices inform public policy regarding the need for emergency adulticiding. Currently, these are calculated on a city-wide basis. In this study, we present descriptive data from historical surveillance records spanning 2006-2013 to discern seasonal and yearly patterns of entomological risk for WNV infection. Also, we retrospectively test the hypothesis that entomological risk is correlated with human transmission risk and is heterogeneous within the City of Fort Collins. Four logistically relevant zones within the city were established and used to test this hypothesis. Zones in the eastern portion of the city consistently had significantly higher Culex abundance and VI compared with zones in the west, leading to higher entomological risk indicators for human WNV infection in the east. Moreover, the relative risk of a reported human case of WNV infection was significantly higher in the eastern zones of the city. Our results suggest that a more spatially targeted WNV management program may better mitigate human risk for WNV infection in Fort Collins, and possibly other cities where transmission is enzootic, while at the same time reducing pesticide use. |
Transmission dynamics of an insect-specific flavivirus in a naturally infected Culex pipiens laboratory colony and effects of co-infection on vector competence for West Nile virus
Bolling BG , Olea-Popelka FJ , Eisen L , Moore CG , Blair CD . Virology 2012 427 (2) 90-7 We established a laboratory colony of Culex pipiens mosquitoes from eggs collected in Colorado and discovered that mosquitoes in the colony are naturally infected with Culex flavivirus (CxFV), an insect-specific flavivirus. In this study we examined transmission dynamics of CxFV and effects of persistent CxFV infection on vector competence for West Nile virus (WNV). We found that vertical transmission is the primary mechanism for persistence of CxFV in Cx. pipiens, with venereal transmission potentially playing a minor role. Vector competence experiments indicated possible early suppression of WNV replication by persistent CxFV infection in Cx. pipiens. This is the first description of insect-specific flavivirus transmission dynamics in a naturally infected mosquito colony and the observation of delayed dissemination of superinfecting WNV suggests that the presence of CxFV may impact the intensity of enzootic transmission of WNV and the risk of human exposure to this important pathogen. |
Insect-specific flaviviruses from culex mosquitoes in Colorado, with evidence of vertical transmission
Bolling BG , Eisen L , Moore CG , Blair CD . Am J Trop Med Hyg 2011 85 (1) 169-77 Mosquitoes were collected in Colorado during 2006 and 2007 to examine spatial and seasonal patterns of risk for exposure to Culex vectors and West Nile virus. We used universal flavivirus primers to test pools of Culex mosquitoes for viral RNA. This led to the detection and subsequent isolation of two insect-specific flaviviruses: Culex flavivirus (CxFV), which was first described from Japan, and a novel insect flavivirus, designated Calbertado virus (CLBOV), which has also been detected in California and Canada. We recorded both viruses in Cx. tarsalis and Cx. pipiens from Colorado. Furthermore, quantitative reverse transcription polymerase chain reaction (RT-PCR) revealed the presence of CxFV RNA in Cx. pipiens eggs and larvae from a laboratory colony established in 2005 and naturally infected with CxFV, suggesting vertical transmission as a means of viral maintenance in natural Culex populations. Finally, we present phylogenetic analyses of the relationships between insect-specific flaviviruses and other selected flaviviruses. |
Spatial risk assessments based on vector-borne disease epidemiologic data: importance of scale for West Nile virus disease in Colorado
Winters AM , Eisen RJ , Delorey MJ , Fischer M , Nasci RS , Zielinski-Gutierrez E , Moore CG , Pape WJ , Eisen L . Am J Trop Med Hyg 2010 82 (5) 945-53 We used epidemiologic data for human West Nile virus (WNV) disease in Colorado from 2003 and 2007 to determine 1) the degree to which estimates of vector-borne disease occurrence is influenced by spatial scale of data aggregation (county versus census tract), and 2) the extent of concordance between spatial risk patterns based on case counts versus incidence. Statistical analyses showed that county, compared with census tract, accounted for approximately 50% of the overall variance in WNV disease incidence, and approximately 33% for the subset of cases classified as West Nile neuroinvasive disease. These findings indicate that sub-county scale presentation provides valuable risk information for stakeholders. There was high concordance between spatial patterns of WNV disease incidence and case counts for census tract (83%) but not for county (50%) or zip code (31%). We discuss how these findings impact on practices to develop spatial epidemiologic data for vector-borne diseases and present data to stakeholders. |
- Page last reviewed:Feb 1, 2024
- Page last updated:May 06, 2024
- Content source:
- Powered by CDC PHGKB Infrastructure