keyword
MENU ▼
Read by QxMD icon Read
search

West nile

keyword
https://www.readbyqxmd.com/read/28333986/building-the-road-to-a-regional-zoonoses-strategy-a-survey-of-zoonoses-programmes-in-the-americas
#1
Melody J Maxwell, Mary H Freire de Carvalho, Armando E Hoet, Marco A N Vigilato, Julio C Pompei, Ottorino Cosivi, Victor J Del Rio Vilas
BACKGROUND: In recent years, global public health security has been threatened by zoonotic disease emergence as exemplified by outbreaks of H5N1 and H1N1 influenza, SARS, and most recently Ebola and Zika. Additionally, endemic zoonoses, such as rabies, burden countries year after year, placing demands on limited finances and personnel. To survey the baseline status of the emerging and endemic zoonoses programmes of the Latin American and the Caribbean (LAC) countries, the Pan American Health Organization (PAHO) conducted a survey of priority emerging and endemic zoonoses, countries´ prioritization criteria and methodologies, and suggestions to strengthen countries capacities and regional approaches to zoonoses control...
2017: PloS One
https://www.readbyqxmd.com/read/28332648/west-nile-virus-epizootics-in-the-camargue-france-in-2015-and-reinforcement-of-surveillance-and-control-networks
#2
C Bahuon, C Marcillaud-Pitel, L Bournez, A Leblond, C Beck, J Hars, I Leparc-Goffart, G L'Ambert, M-C Paty, L Cavalerie, C Daix, P Tritz, B Durand, S Zientara, S Lecollinet
West Nile virus (WNV) infection is a non-contagious disease mainly transmitted by the bites of infected mosquitoes from the genus Culex. The virus is maintained in a mosquito-bird-mosquito cycle, and can accidentally be transmitted to mammalian hosts. Among mammalian hosts, equines and humans are the most sensitive to WNV infection and can develop severe meningoencephalitis. As WNV infections are zoonotic and can be severe in humans and equines, West Nile fever is considered to be a public and animal health concern...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28332645/epidemiological-role-of-birds-in-the-transmission-and-maintenance-of-zoonoses
#3
A Contreras, A Gómez-Martín, A Paterna, J Tatay-Dualde, M Prats-Van Der Ham, J C Corrales, C De La Fe, A Sánchez
The risk of zoonoses spreading from birds to humans is lower, quantitatively speaking, than the risk of transmission between other host groups, because the two taxonomic groups share fewer pathogens. Nevertheless, birds have a number of epidemiological characteristics that make them extremely important hosts in the transmission and maintenance of zoonoses, including their susceptibility to pathogens that are extremely hazardous to humans (such as highly pathogenic avian influenza virus, West Nile virus and Chlamydia psittaci) and their ability to travel long distances, especially in the case of migratory birds...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28322715/west-nile-virus-seroprevalence-connecticut-usa-2000-2014
#4
Megan E Cahill, Yi Yao, David Nock, Philip M Armstrong, Theodore G Andreadis, Maria A Diuk-Wasser, Ruth R Montgomery
West Nile virus (WNV) infection is mainly asymptomatic but can be severe in elderly persons. As part of studies on immunity and aging in Connecticut, USA, we detected WNV seroconversion in 8.5% of nonimmunosuppressed and 16.8% of immunosuppressed persons. Age was not a significant seroconversion factor. Our findings suggest that immune factors affect seroconversion.
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28320443/co-circulation-of-west-nile-virus-and-distinct-insect-specific-flaviviruses-in-turkey
#5
Koray Ergünay, Nadine Litzba, Annika Brinkmann, Filiz Günay, Yasemen Sarıkaya, Sırrı Kar, Serra Örsten, Kerem Öter, Cristina Domingo, Özge Erisoz Kasap, Aykut Özkul, Luke Mitchell, Andreas Nitsche, Bülent Alten, Yvonne-Marie Linton
BACKGROUND: Active vector surveillance provides an efficient tool for monitoring the presence or spread of emerging or re-emerging vector-borne viruses. This study was undertaken to investigate the circulation of flaviviruses. Mosquitoes were collected from 58 locations in 10 provinces across the Aegean, Thrace and Mediterranean Anatolian regions of Turkey in 2014 and 2015. Following morphological identification, mosquitoes were pooled and screened by nested and real-time PCR assays. Detected viruses were further characterised by sequencing...
March 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28317911/chimeric-viruses-between-rocio-and-west-nile-the-role-for-rocio-prm-e-proteins-in-virulence-and-inhibition-of-interferon-%C3%AE-%C3%AE-signaling
#6
Alberto A Amarilla, Yin X Setoh, Parthiban Periasamy, Nias Y Peng, Gabor Pali, Luiz T Figueiredo, Alexander A Khromykh, Victor H Aquino
Mosquito-transmitted flavivirus Rocio (ROCV) was responsible for an outbreak of encephalitis in the Ribeira Valley, located in the south coast of Sao Paulo State, Brazil, in 1975-1976. ROCV also causes fatal encephalitis in adult mice. Seroprevalence studies in humans, horses and water buffaloes in different regions of Brazil have suggested that ROCV is still circulating in the country, indicating the risk of re-emergence of this virus. West Nile virus (WNV) is also a mosquito-transmitted encephalitic flavivirus, however, WNV strains circulating in Australia have not been associated with outbreaks of disease in humans and exhibit low virulence in adult mice...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28301049/determining-the-rate-of-underrecognition-of-west-nile-virus-neurologic-disease-in-the-province-of-quebec-in-2012
#7
Gilles Delage, Sophie Dubuc, Yves Grégoire, Anne-Marie Lowe, France Bernier, Marc Germain
BACKGROUND: During a major outbreak of West Nile virus (WNV) infection in the province of Quebec in 2012, public health authorities (PHAs) suspected underrecognition of West Nile neurologic disease (WNND). With data on acute infections detected in blood donors, an estimate of the degree of underrecognition was produced. STUDY DESIGN AND METHODS: All 2012 donors were tested for WNV infection with the use of reverse transcription-polymerase chain reaction (RT-PCR)...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28297637/toxicity-of-%C3%AE-citronellol-geraniol-and-linalool-from-pelargonium-roseum-essential-oil-against-the-west-nile-and-filariasis-vector-culex-pipiens-diptera-culicidae
#8
Mohaddeseh Abouhosseini Tabari, Mohammad Reza Youssefi, Aryan Esfandiari, Giovanni Benelli
Insect vectors are responsible for spreading devastating parasites and pathogens. A large number of botanicals have been suggested for eco-friendly control programs against mosquito vectors, and some of them are aromatic plants. Pelargonium roseum, a species belonging to the Geraniaceae family, due to its pleasant rose-like odor may represent a suitable candidate as mosquito repellent and/or larvicide. In this research, we evaluated the toxicity of the essential oil from P. roseum and its major constituents against the West Nile and filariasis vector Culex pipiens...
March 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28291542/molecular-mechanisms-of-neuroinflammation-and-injury-during-acute-viral-encephalitis
#9
REVIEW
Katherine D Shives, Kenneth L Tyler, J David Beckham
Viral infections in the central nervous system are a major cause of encephalitis. West Nile virus (WNV) and Herpes simplex virus (HSV) are the most common causes of viral encephalitis in the United States. We review the role of neuroinflammation in the pathogenesis of WNV and HSV infections in the central nervous system (CNS). We discuss the role of the innate and cell-mediated immune responses in peripheral control of viral infection, viral invasion of the CNS, and in inflammatory-mediated neuronal injury...
March 11, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28284278/mutagen-resistance-and-mutation-restriction-of-st-louis-encephalitis-virus
#10
Sara B Griesemer, Laura D Kramer, Greta A Van Slyke, Janice D Pata, David W Gohara, Craig E Cameron, Alexander T Ciota
The error rate of the RNA-dependent RNA polymerase (RdRp) of RNA viruses is important in maintaining genetic diversity for viral adaptation and fitness. Numerous studies have shown that mutagen-resistant RNA virus variants display amino acid mutations in the RdRp and other replicase subunits, which in turn exhibit an altered fidelity phenotype affecting viral fitness, adaptability and pathogenicity. St. Louis encephalitis virus (SLEV), like its close relative West Nile virus, is a mosquito-borne flavivirus that has the ability to cause neuroinvasive disease in humans...
February 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28278327/chorioretinal-lesions-presumed-secondary-to-zika-virus-infection-in-an-immunocompromised-adult
#11
Christopher R Henry, Luma Al-Attar, Alexis M Cruz-Chacón, Janet L Davis
Importance: Zika virus has spread rapidly throughout the Americas since 2015. The public health implications of Zika virus infection lend special importance to identifying the virus in unsuspected hosts. Objective: To describe relevant imaging studies and clinical features of chorioretinal lesions that are presumably associated with Zika virus and that share analogous features with chorioretinal lesions reported in cases of Dengue fever and West Nile virus. Design, Setting, and Participants: This is a case report from an academic referral center in Miami, Florida, of a woman in her 60s from Guaynabo, Puerto Rico, who presented with reduced visual acuity and bilateral diffuse, subretinal, confluent, placoid, and multifocal chorioretinal lesions...
March 9, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28274478/unravelling-the-effects-of-mobile-phase-additives-in-supercritical-fluid-chromatography-part-i-polarity-and-acidity-of-the-mobile-phase
#12
Caroline West, Jodie Melin, Hassna Ansouri, Maïly Mengue Metogo
The mobile phases employed in current supercritical fluid chromatography (SFC) are usually composed of a mixture of pressurized carbon dioxide and a co-solvent. The co-solvent is most often an alcohol and may contain a third component in small proportions, called an additive (acid, base or salt). The polarity of such mobile phase compositions is here re-evaluated with a solvatochromic dye (Nile Red), particularly to assess the contribution of additives. It appears that additives, when employed in usual concentration range (0...
March 1, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28270191/isolation-and-molecular-characterisation-of-halicephalobus-gingivalis-in-the-brain-of-a-horse-in-piedmont-italy
#13
Maria Domenica Pintore, Francesco Cerutti, Antonio D'Angelo, Cristiano Corona, Paola Gazzuola, Loretta Masoero, Corrado Colombo, Roberto Bona, Carlo Cantile, Simone Peletto, Cristina Casalone, Barbara Iulini
BACKGROUND: A fatal case of meningoencephalitis was reported in a 13-year-old Koninklijk Warmbloed Paard Nederland stallion, suspected of West Nile virus (WNV) infection, in the Piedmont region of Italy. Clinical signs included right head tilt and circling, depression alternated with excitability, fever and lateral strabismus. Combined treatment consisting of dimethylsulfoxide, dexamethasone, sulphonamides and sedative was administered, but because of the poor conditions the horse was euthanatized and submitted for necropsy...
March 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28261172/the-complement-system-in-flavivirus-infections
#14
Jonas N Conde, Emiliana M Silva, Angela S Barbosa, Ronaldo Mohana-Borges
The incidence of flavivirus infections has increased dramatically in recent decades in tropical and sub-tropical climates worldwide, affecting hundreds of millions of people each year. The Flaviviridae family includes dengue, West Nile, Zika, Japanese encephalitis, and yellow fever viruses that are typically transmitted by mosquitoes or ticks, and cause a wide range of symptoms, such as fever, shock, meningitis, paralysis, birth defects, and death. The flavivirus genome is composed of a single positive-sense RNA molecule encoding a single viral polyprotein...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28254839/the-crystal-structure-of-zika-virus-ns5-reveals-conserved-drug-targets
#15
Wenqian Duan, Hao Song, Haiyuan Wang, Yan Chai, Chao Su, Jianxun Qi, Yi Shi, George F Gao
Zika virus (ZIKV) has emerged as major health concern, as ZIKV infection has been shown to be associated with microcephaly, severe neurological disease and possibly male sterility. As the largest protein component within the ZIKV replication complex, NS5 plays key roles in the life cycle and survival of the virus through its N-terminal methyltransferase (MTase) and C-terminal RNA-dependent RNA polymerase (RdRp) domains. Here, we present the crystal structures of ZIKV NS5 MTase in complex with an RNA cap analogue ((m7)GpppA) and the free NS5 RdRp...
March 2, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28252204/emerging-arboviral-human-diseases-in-southern-europe
#16
REVIEW
Anna Papa
Southern Europe is characterized by unique landscape and climate which attract tourists, but also arthropod vectors, some of them carrying pathogens. Among several arboviral diseases that emerged in the region during the last decade, West Nile fever accounted for high number of human cases and fatalities, while Crimean-Congo hemorrhagic fever expanded its geographic distribution, and is considered as a real threat for Europe. Viruses evolve rapidly and acquire mutations making themselves stronger and naive populations more vulnerable...
March 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28243937/zika-virus-an-emerging-flavivirus
#17
REVIEW
Sang-Im Yun, Young-Min Lee
Zika virus (ZIKV) is a previously little-known flavivirus closely related to Japanese encephalitis, West Nile, dengue, and yellow fever viruses, all of which are primarily transmitted by blood-sucking mosquitoes. Since its discovery in Uganda in 1947, ZIKV has continued to expand its geographic range, from equatorial Africa and Asia to the Pacific Islands, then further afield to South and Central America and the Caribbean. Currently, ZIKV is actively circulating not only in much of Latin America and its neighbors but also in parts of the Pacific Islands and Southeast Asia...
March 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28241074/arsenite-induced-stress-granule-formation-is-inhibited-by-elevated-levels-of-reduced-glutathione-in-west-nile-virus-infected-cells
#18
Mausumi Basu, Sean C Courtney, Margo A Brinton
Oxidative stress activates the cellular kinase HRI, which then phosphorylates eIF2α, resulting in stalled translation initiation and the formation of stress granules (SGs). SG assembly redirects cellular translation to stress response mRNAs and inhibits cap-dependent viral RNA translation. Flavivirus infections were previously reported to induce oxidative stress in infected cells but flavivirus-infected cells paradoxically develop resistance to arsenite (Ars)-induced SG formation with time after infection...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28228395/antibody-responses-to-zika-virus-infections-in-flavivirus-endemic-environments
#19
Sarah L Keasey, Christine L Pugh, Stig M R Jensen, Jessica L Smith, Robert D Hontz, Anna P Durbin, Dawn M Dudley, David H O'Connor, Robert G Ulrich
Zika virus (ZIKV) infections occur in areas where dengue (DENV), West Nile (WNV), yellow fever (YFV), and other viruses of the genus Flavivirus co-circulate. The envelope protein (E) of these closely related flaviviruses induces specific long-term immunity, yet subsequent infections are associated with cross-reactive antibody responses that may enhance disease susceptibility and severity. To gain a better understanding of ZIKV infections against a background of similar viral diseases, we examined serological immune responses to ZIKV, WNV, DENV and YFV infections of humans and non-human primates (NHP)...
February 22, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28220657/a-geographic-study-of-west-nile-virus-in-humans-dead-corvids-and-mosquitoes-in-ontario-using-spatial-scan-statistics-with-a-survival-time-application
#20
A L Thomas-Bachli, D L Pearl, O Berke, E J Parmley, I K Barker
Surveillance of West Nile virus (WNv) in Ontario has included passive reporting of human cases and testing of trapped mosquitoes and dead birds found by the public. The dead bird surveillance programme was limited to testing within a public health unit (PHU) until a small number of birds test positive. These dead corvid and mosquito surveillance programmes have not been compared for their ability to provide early warning in geographic areas where human cases occur each year. Spatial scan statistics were applied to time-to-event survival data based on first cases of WNv in found dead corvids, mosquitoes and humans...
February 20, 2017: Zoonoses and Public Health
keyword
keyword
33076
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"