Entomology RSS

Filtered By:
Infectious Disease: West Nile Virus

This page shows you your search results in order of relevance.

Order by Relevance | Date

Total 44 results found since Jan 2013.

Vector competence of field populations of the mosquito species Aedes japonicus japonicus and Culex pipiens from Switzerland for two West Nile virus strains
Medical and Veterinary Entomology,Volume 32, Issue 1, Page 121-124, March 2018.
Source: Medical and Veterinary Entomology - October 30, 2017 Category: Veterinary Research Source Type: research

Vector competence of northern and southern European Culex pipiens pipiens mosquitoes for West Nile virus across a gradient of temperatures
Medical and Veterinary Entomology, Page 358-364, March 2018.
Source: Medical and Veterinary Entomology - July 28, 2017 Category: Veterinary Research Source Type: research

The vector ecology of introduced Culex quinquefasciatus populations, and implications for future risk of West Nile virus emergence in the Gal ápagos archipelago
Medical and Veterinary Entomology, EarlyView.
Source: Medical and Veterinary Entomology - August 31, 2018 Category: Veterinary Research Authors: G. Eastwood , A. A. Cunningham , L. D. Kramer , S. J. Goodman Source Type: research

Fewer Scientists Are Studying Insects. Here ’s Why That’s So Dangerous
In the summer of 2016, Jerome Goddard, a medical entomologist in Mississippi, received an email from the U.S. Centers for Disease Control and Prevention (CDC) with a desperate ask. The agency was conducting an “urgent” search for insect scientists around the U.S. who could take up to a six-month paid leave from work to help the CDC fight the Zika outbreak in the U.S., and possibly respond to areas with local transmission if needed. “That’s how bad it is—they need to borrow someone,” says Goddard, an extension professor of medical entomology at Mississippi State University. “We can&...
Source: TIME: Health - February 14, 2018 Category: Consumer Health News Authors: Alexandra Sifferlin Tags: Uncategorized healthytime public health Source Type: news

UArizona researchers launch the Great Arizona Tick Check
As spring blooms across much of the state, University of Arizona researchers are encouraging the public to check for ticks and contribute to an important community health effort. Rosemary Brandt Today College of Agriculture& Life SciencesRhipicephalussanguineus_hires-small.jpg A male brown dog tick, Rhipicephalus sanguineus. Brown dog ticks are the primary vector for Rocky Mountain spotted fever in Arizona. CDC/ James GathanyHealthScience and TechnologyCollege of Agriculture and Life SciencesCollege of Public Health Media contact(s)Rosemary Brandt College of Agriculture and Life Sciencesrjbrandt@email.arizona...
Source: The University of Arizona: Health - March 17, 2023 Category: Universities & Medical Training Authors: rjbrandt Source Type: research

Mosquito and West Nile virus surveillance in northeast Montana, U.S.A., 2005 and 2006
Abstract Mosquito and West Nile virus (WNV) surveillance was conducted on a national wildlife refuge in northeast Montana in 2005 and 2006, during which outbreaks of WNV in a colony of American white pelicans (Pelecanus erythrorhynchos Gmelin) (Pelecaniformes: Pelecanidae) resulted in juvenile mortality rates of ∼ 31%. Both years, floodwater species Ochlerotatus dorsalis (Meigen) (Diptera: Culicidae), Aedes vexans (Meigen) (Diptera: Culicidae) and Ochlerotatus flavescens (Muller) (Diptera: Culicidae) comprised 78% of the total collection and heightened host‐seeking activity was observed from mid‐June to mid‐July....
Source: Medical and Veterinary Entomology - May 6, 2013 Category: Veterinary Research Authors: K. M. FRIESEN, G. D. JOHNSON Tags: ORIGINAL ARTICLE Source Type: research

Sympatric occurrence of Culex pipiens (Diptera, Culicidae) biotypes pipiens, molestus and their hybrids in Portugal, Western Europe: feeding patterns and habitat determinants
Abstract Culex (Culex) pipiens (Diptera: Culicidae) has two recognized biotypes, pipiens and molestus, which differ in physiology and behaviour; this difference may influence vectorial capacity for West Nile virus (WNV). Our goal was first to determine the presence of Cx. pipiens populations in 31 locations in Portugal and to subsequently analyse their host‐feeding preferences and habitat determinants. Molecular identification of Cx. pipiens forms and their hybrids was performed in 97 females; bloodmeal sources were identified in 59 engorged specimens. Overall, 61.9% of specimens were identified as Cx. pipiens f. p...
Source: Medical and Veterinary Entomology - June 1, 2013 Category: Veterinary Research Authors: H. C. Osório, L. Zé‐Zé, F. Amaro, A. Nunes, M. J. Alves Tags: Original Article Source Type: research

Mosquito survey during West Nile virus outbreak 2012 in northeast Croatia.
Abstract During the August and September 2012, seven human cases of the West Nile neuro-invasive disease were reported in Croatia. Medical entomology research on a potential vectors during the outbreak was supported by the Ministry of Health. A mosquito survey has been done in 64 sites in three eastern Croatian counties (Osijek-Baranja County, Vukovar-Srijem county and in Brod-Posavina county). Dry ice baited CDC traps were used for mosquito sampling in a period from the 10th to 25th September 2012. A total of 1785 mosquitoes were collected and 5 species were determined. The most numerous species were Aedes vexans...
Source: Collegium Antropologicum - June 1, 2014 Category: Epidemiology Authors: Merdić E, Vignjević G, Turić N, Bogojević MS, Milas J, Vrućina I, Zahirović Z Tags: Coll Antropol Source Type: research

New evidence for the potential role of Culex pipiens mosquitoes in the transmission cycle of West Nile virus in Tunisia
Abstract Physiological and molecular characteristics of natural populations of Culex pipiens Linnaeus, 1758 (Diptera: Culicidae) were investigated to elucidate how this species is potentially involved in the transmission of West Nile virus in Tunisia. A total of 215 Cx. pipiens females from 11 breeding habitats were analysed in the laboratory to estimate autogeny and stenogamy rates. They were tested individually for the locus CQ11 to distinguish between the two Cx. pipiens forms, pipiens and molestus. All tested Cx. pipiens populations were stenogamous. Females from underground breeding sites were all autogeneous, w...
Source: Medical and Veterinary Entomology - December 1, 2014 Category: Veterinary Research Authors: G. KRIDA, A. RHIM, J. DAABOUB, A.‐B. FAILLOUX, A. BOUATTOUR Tags: Original Article Source Type: research

Divergent host preferences of above‐ and below‐ground Culex pipiens mosquitoes and their hybrid offspring
Abstract Culex pipiens form pipiens and Cx. pipiens form molestus (Diptera: Culicidae) belong to a cosmopolitan taxonomic group known as the Pipiens Assemblage. Hybridization between these forms is thought to contribute to human transmission of West Nile virus (WNV) in North America. Complementary choice and no‐choice landing assays were developed to examine host acceptance by North American Cx. pipiens in the laboratory. Populations collected from above‐ and below‐ground sites in suburban Chicago were identified as forms pipiens and molestus using a polymerase chain reaction‐based assay. Avian and human host a...
Source: Medical and Veterinary Entomology - December 1, 2014 Category: Veterinary Research Authors: M. L. FRITZ, E. D. WALKER, J. R. MILLER, D. W. SEVERSON, I. DWORKIN Tags: Original Article Source Type: research

Rhipicephalus rossicus, a neglected tick at the margin of Europe: a review of its distribution, ecology and medical importance
Abstract. Rhipicephalus rossicus (Ixodida: Ixodidae) is a three‐host tick with a broad host spectrum that includes wild animals, pets, livestock and humans. Despite its local abundance in certain areas, most of the available information on R. rossicus was published decades ago, mainly by former soviet authors. Its distribution largely overlaps the Eurasian steppe. However, its range may be more extensive than is currently known because this species may have been misidentified as Rhipicephalus sanguineus, principally in areas where the latter species is present. Although R. rossicus has been occasionally reported to f...
Source: Medical and Veterinary Entomology - March 1, 2015 Category: Veterinary Research Authors: A. D. MIHALCA, Z. KALMÁR, M. O. DUMITRACHE Tags: Review Article Source Type: research

Evaluation of vector competence for West Nile virus in Italian Stegomyia albopicta (=Aedes albopictus) mosquitoes
Abstract West Nile virus (WNV) is a zoonotic arboviral pathogen transmitted by mosquitoes in a cycle that involves wild birds as reservoir hosts. The virus is responsible for outbreaks of viral encephalitis in humans and horses. In Europe, Culex pipiens (Diptera: Culicidae) is considered to be the main vector of WNV, but other species such as Stegomyia albopicta (=Aedes albopictus) (Diptera: Culicidae) may also act as competent vectors of this virus. Since 2008 human cases of WNV disease have been reported in northeast Italy. In 2011, new areas of southern Italy became involved and a first outbreak of WNV lineage 1 occurre...
Source: Medical and Veterinary Entomology - September 18, 2015 Category: Veterinary Research Authors: C. FORTUNA, M. E. REMOLI, F. SEVERINI, M. DI LUCA, L. TOMA, F. FOIS, P. BUCCI, D. BOCCOLINI, R. ROMI, M. G. CIUFOLINI Tags: Short Communication Source Type: research

Host preferences in host‐seeking and blood‐fed mosquitoes in Switzerland
Abstract The avian zoonotic agent for West Nile virus (WNV) can cause neuroinvasive disease in horses and humans and is expanding its range in Europe. Analyses of the risk for transmission to these hosts in non‐endemic areas are necessary. Host preferences of mosquitoes (Diptera: Culicidae), the main vectors of WNV, were determined in Switzerland using animal‐baited trap (horse, chickens) experiments at a natural and a periurban site. This was undertaken on four occasions during May–September 2014. In addition, the hosts of 505 blood‐fed mosquitoes collected in a zoo and in the field were determined. Mosquito data ...
Source: Medical and Veterinary Entomology - December 21, 2015 Category: Veterinary Research Authors: A. C. SCHÖNENBERGER, S. WAGNER, H. C. TUTEN, F. SCHAFFNER, P. TORGERSON, S. FURRER, A. MATHIS, C. SILAGHI Tags: Original Article Source Type: research

Pages: 1 2 3