Assessing natural infection with Zika virus in the southern house mosquito, Culex quinquefasciatus, during 2016 in Puerto Rico
Abstract
The epidemic of Zika in the Western hemisphere has led to intense investigations of all species important in the transmission of Zika virus (ZikV), including putative mosquito vectors. Although evidence points to Stegomyia (= Aedes) (Diptera: Culicidae) mosquitoes as the primary vectors in nature among humans, there remains the possibility that other common mosquito species may be implicated in the rapid spread of the virus. Herein, field‐caught Culex quinquefasciatus (Diptera: Culicidae) collected during June 2016 in different neighbourhoods in San Juan, Puerto Rico were examined for the presence of natural inf...
Source: Medical and Veterinary Entomology - December 14, 2017 Category: Veterinary Research Authors: D. A. Yee, R. Dejesus ‐Crespo, F. F. Hunter, F. Bai Tags: Short Communication Source Type: research
Temporal distribution of, and effect of anthropic modifications on, phlebotomine populations in the Chaco Bioregion, Argentina
Medical and Veterinary Entomology,Volume 32, Issue 2, Page 206-215, June 2018. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 5, 2017 Category: Veterinary Research Authors: E. A.
SZELAG
,
J. R.
ROSA
,
M. G.
QUINTANA
,
O. D.
SALOMON Source Type: research
Temporal distribution of, and effect of anthropic modifications on, phlebotomine populations in the Chaco Bioregion, Argentina
Medical and Veterinary Entomology, EarlyView. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 5, 2017 Category: Veterinary Research Source Type: research
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Medical and Veterinary Entomology, Ahead of Print. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 5, 2017 Category: Veterinary Research Source Type: research
Bionomics of livestock ‐associated Culicoides (biting midge) bluetongue virus vectors under laboratory conditions
Medical and Veterinary Entomology,Volume 32, Issue 2, Page 216-225, June 2018. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 4, 2017 Category: Veterinary Research Authors: C.
BARCEL Ó
,
M. A.
MIRANDA Source Type: research
Bionomics of livestock ‐associated Culicoides (biting midge) bluetongue virus vectors under laboratory conditions
Medical and Veterinary Entomology, EarlyView. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 4, 2017 Category: Veterinary Research Source Type: research
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Medical and Veterinary Entomology, Ahead of Print. (Source: Medical and Veterinary Entomology)
Source: Medical and Veterinary Entomology - December 4, 2017 Category: Veterinary Research Source Type: research
Vector competence of Culex antennatus and Anopheles coustani mosquitoes for Rift Valley fever virus in Madagascar
Abstract
Culex antennatus (Diptera: Culicidae), Anopheles coustani (Diptera: Culicidae) and Anopheles squamosus/cydippis were found to be infected with Rift Valley fever virus (RVFV) during an epidemic that occurred in 2008 and 2009 in Madagascar. To understand the roles played by Cx. antennatus and An. coustani in virus maintenance and transmission, RVFV vector competence was assessed in each species. Mosquito body parts and saliva of mosquitoes that fed on RVFV‐infected blood were tested for RVFV using real‐time quantitative polymerase chain reaction (RT‐qPCR) assays. Overall, viral RNA was detected in body parts a...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: T. N. J. J. Nepomichene, F. N. Raharimalala, S. F. Andriamandimby, J. ‐P. Ravalohery, A.‐B. Failloux, J.‐M. Heraud, S. Boyer Tags: Short Communication Source Type: research
Ecological characterization of a tick community across a landscape gradient exhibiting differential anthropogenic disturbance in the Atlantic Forest ecoregion in Argentina
Abstract
An ecological analysis of a tick (Ixodida: Ixodidae) community across a landscape gradient presenting differential anthropogenic disturbance in the Atlantic Forest ecoregion in Argentina was performed. Ticks were collected from vegetation and hosts between September 2014 and August 2016. A total of 12 697 free‐living ticks and 3347 specimens from hosts were collected, including 317 ticks infesting humans. The values obtained show considerable species diversity in the forest environment accompanied by low equitability. The similarity index derived from a comparison of forest and agricultural environments was high...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: D. Lamattina, J. M. Venzal, S. A. Costa, J. P. Arrabal, S. Flores, P. E. Berrozpe, D. Gonz ález‐Acuña, A. A. Guglielmone, S. Nava Tags: Original Article Source Type: research
The prevalence and distribution of sheep scab in Wales: a farmer questionnaire survey
Abstract
Outbreaks of ovine psoroptic mange in the U.K. have increased 100‐fold since its deregulation in 1992, with the highest prevalence in Wales, a region of high sheep density. A cross‐sectional, retrospective, questionnaire‐based survey of 7500 members of the association of Welsh lamb and beef farmers [Welsh Lamb and Beef Producers Ltd (WLBP)] was used to investigate the prevalence and distribution of sheep scab in this region in 2015. The survey was completed by 14.0% (n = 972) of potential respondents. Scab outbreaks were reported on 15.8% (n = 154) of farms in 2015. However, 29.0% (n = 282) of fa...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: C. ‐A. Chivers, H. Rose Vineer, R. Wall Tags: Original Article Source Type: research
Dispersal capacity of Haematopota spp. and Stomoxys calcitrans using a mark –release–recapture approach in Belgium
Abstract
The dispersion potential of mechanical vectors is an important factor in the dissemination of pathogens. A mark–release–recapture experiment was implemented using two groups (unfed and partially fed) of the Tabanidae (Diptera) (Haematopota spp.) and biting Muscidae (Diptera) (Stomoxys calcitrans) most frequently collected in Belgium in order to evaluate their dispersion potential. In total, 2104 specimens of Haematopota spp. were collected directly from horses and 5396 S. calcitrans were collected in a cattle farm using hand‐nets. Some of these insects were partially fed in vitro and all were subsequently co...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: L. Lempereur, C. Sohier, F. Smeets, F. Mar échal, D. Berkvens, M. Madder, F. Francis, B. Losson Tags: Original Article Source Type: research
A distinct group of north European Aedes vexans as determined by mitochondrial and nuclear markers
Abstract
The floodwater mosquito Aedes (Aedimorphus) vexans (Meigen, 1830) (Diptera: Culicidae) is common in several areas of Sweden and is predicted to become more abundant in the wake of expected changes in precipitation and temperature caused by climate change. As well as being a nuisance, Ae. vexans can act as a vector of over 30 viruses. In the event of an outbreak of disease caused by a vector‐borne virus, knowledge of the distribution, population structure and intermixing of populations from different locations will help direct resources to target locations to prevent spread of the pathogen. The present study ana...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: T. Lilja, K. Troell, H. Kirik, A. Lindstr öm Tags: Original Article Source Type: research
The unusual reproductive system of head and body lice (Pediculus humanus)
Abstract
Insect reproduction is extremely variable, but the implications of alternative genetic systems are often overlooked in studies on the evolution of insecticide resistance. Both ecotypes of Pediculus humanus (Phthiraptera: Pediculidae), the human head and body lice, are human ectoparasites, the control of which is challenged by the recent spread of resistance alleles. The present study conclusively establishes for the first time that both head and body lice reproduce through paternal genome elimination (PGE), an unusual genetic system in which males transmit only their maternally derived chromosomes. Here, we invest...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: A. G. de la Filia, S. Andrewes, J. M. Clark, L. Ross Tags: Original Article Source Type: research
Does the mosquito Culex pipiens represent a potential vector of hepatitis C virus?
This study was designed to examine the possibility that the mosquito Culex pipiens (Diptera: Culicidae) might serve as a vector of HCV. A series of laboratory experiments were conducted in female Cx. pipiens that were fed on blood taken from HCV patients and tested for the presence of HCV RNAs using a reverse transcription polymerase chain reaction technique. In addition, the ability of the female mosquito to transmit HCV to human blood through membrane feeding or to its offspring (larvae) was tested. Although positive strand RNA was detected on days 1,7 and 14, negative strand HCV RNA was detected in mosquito body homoge...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: S. E. El ‐Kholy, I. M. El‐Husseiny, W. S. Meshrif, A. Abou El‐Azm, M. L. Salem Tags: Original Article Source Type: research
