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https://www.readbyqxmd.com/read/28212349/household-dengue-prevention-interventions-expenditures-and-barriers-to-aedes-aegypti-control-in-machala-ecuador
#1
Naveed Heydari, David A Larsen, Marco Neira, Efraín Beltrán Ayala, Prissila Fernandez, Jefferson Adrian, Rosemary Rochford, Anna M Stewart-Ibarra
The Aedes aegypti mosquito is an efficient vector for the transmission of Zika, chikungunya, and dengue viruses, causing major epidemics and a significant social and economic burden throughout the tropics and subtropics. The primary means of preventing these diseases is household-level mosquito control. However, relatively little is known about the economic burden of Ae. aegypti control in resource-limited communities. We surveyed residents from 40 households in a high-risk community at the urban periphery in the city of Machala, Ecuador, on dengue perceptions, vector control interventions, household expenditures, and factors influencing purchasing decisions...
February 16, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28210744/comment-on-zika-in-singapore-insights-from-one-health-and-social-medicine
#2
John H Lange, Luca Cegolon
No abstract text is available yet for this article.
February 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28209337/challenges-in-fetal-surveillance-of-pregnant-women-with-zika-virus
#3
Suzanne J Serruya
No abstract text is available yet for this article.
February 10, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28209336/analysis-of-blood-from-zika-virus-infected-fetuses-a-prospective-case-series
#4
Bruno Schaub, Manon Vouga, Fatiha Najioullah, Michèle Gueneret, Alice Monthieux, Caroline Harte, Françoise Muller, Eugénie Jolivet, Clara Adenet, Sophie Dreux, Isabelle Leparc-Goffart, Raymond Cesaire, Jean-Luc Volumenie, David Baud
BACKGROUND: Zika virus has spread through the Americas and the Caribbean since early 2015 and was rapidly declared a Public Health Emergency of International Concern by WHO because of the potential association with fetal anomalies. We analysed fetal and maternal fluids and tissues in fetuses with confirmed Zika virus infection prospectively monitored in Martinique, a French Caribbean island. METHODS: Since the beginning of the Zika virus outbreak in Martinique, all pregnant women undergo monthly fetal ultrasound examination surveillance...
February 10, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28207910/a-single-mutation-in-the-envelope-protein-modulates-flavivirus-antigenicity-stability-and-pathogenesis
#5
Leslie Goo, Laura A VanBlargan, Kimberly A Dowd, Michael S Diamond, Theodore C Pierson
The structural flexibility or 'breathing' of the envelope (E) protein of flaviviruses allows virions to sample an ensemble of conformations at equilibrium. The molecular basis and functional consequences of virus conformational dynamics are poorly understood. Here, we identified a single mutation at residue 198 (T198F) of the West Nile virus (WNV) E protein domain I-II hinge that regulates virus breathing. The T198F mutation resulted in a ~70-fold increase in sensitivity to neutralization by a monoclonal antibody targeting a cryptic epitope in the fusion loop...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28207819/the-ins-and-outs-of-eukaryotic-viruses-knowledge-base-and-ontology-of-a-viral-infection
#6
Chantal Hulo, Patrick Masson, Edouard de Castro, Andrea H Auchincloss, Rebecca Foulger, Sylvain Poux, Jane Lomax, Lydie Bougueleret, Ioannis Xenarios, Philippe Le Mercier
Viruses are genetically diverse, infect a wide range of tissues and host cells and follow unique processes for replicating themselves. All these processes were investigated and indexed in ViralZone knowledge base. To facilitate standardizing data, a simple ontology of viral life-cycle terms was developed to provide a common vocabulary for annotating data sets. New terminology was developed to address unique viral replication cycle processes, and existing terminology was modified and adapted. The virus life-cycle is classically described by schematic pictures...
2017: PloS One
https://www.readbyqxmd.com/read/28207688/transmission-of-zika-virus-haiti-october-12-2015-september-10-2016
#7
Ito Journel, Lesly L Andrécy, Dudley Metellus, Jean S Pierre, Rose Murka Faublas, Stanley Juin, Amber M Dismer, David L Fitter, Daniel Neptune, Marie José Laraque, Salomon Corvil, Manise Pierre, Josiane Buteau, Donald Lafontant, Roopal Patel, Jean Frantz Lemoine, David W Lowrance, Macarthur Charles, Jacques Boncy, Paul Adrien
Zika virus disease is caused by infection with a flavivirus with broad geographic distribution and is most frequently transmitted by the bite of an infected mosquito. The disease was first identified in the World Health Organization's Region of the Americas in 2015 and was followed by a surge in reported cases of congenital microcephaly in Brazil; Zika virus disease rapidly spread to the rest of the region and the Caribbean (1), including Haiti. Infection with the virus is associated with adverse fetal outcomes (1) and rare neurologic complications in adults...
February 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28207337/engaging-human-rights-in-the-response-to-the-evolving-zika-virus-epidemic
#8
Jennifer J K Rasanathan, Sarah MacCarthy, Debora Diniz, Els Torreele, Sofia Gruskin
In late 2015, an increase in the number of infants born with microcephaly in poor communities in northeast Brazil prompted investigation of antenatal Zika infection as the cause. Zika now circulates in 69 countries, and has affected pregnancies of women in 29 countries. Public health officials, policymakers, and international organizations are considering interventions to address health consequences of the Zika epidemic. To date, public health responses have focused on mosquito vector eradication, sexual and reproductive health services, knowledge and technology including diagnostic test and vaccine development, and health system preparedness...
February 16, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28207332/leaking-containers-success-and-failure-in-controlling-the-mosquito-aedes-aegypti-in-brazil
#9
Ilana Löwy
In 1958, the Pan American Health Organization declared that Brazil had successfully eradicated the mosquito Aedes aegypti, responsible for the transmission of yellow fever, dengue fever, chikungunya, and Zika virus. Yet in 2016 the Brazilian minister of health described the situation of dengue fever as "catastrophic." Discussing the recent epidemic of Zika virus, which amplified the crisis produced by the persistence of dengue fever, Brazil's president declared in January 2016 that "we are in the process of losing the war against the mosquito Aedes aegypti...
February 16, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28207078/emerging-infectious-diseases-animals-and-future-epidemics
#10
Herbert L DuPont
Emerging and reemerging infections have become prevalent in the United States since the 1970s, causing illness, death, and fear among the public. The published literature was reviewed to offer a perspective on risk factors for disease acquisition and to allow a prediction of the next microbial assault after Ebola and Zika. Four well-integrated factors likely will contribute simultaneously: animals colonized or infected by pathogens capable of human transmission, microbes recurrently changing their virulence, a growing number of susceptible people, and climatic and environmental factors encouraging disease transmission...
February 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28205633/does-zika-virus-infection-affect-mosquito-response-to-repellents
#11
Walter S Leal, Rosângela M R Barbosa, Fangfang Zeng, Gabriel B Faierstein, Kaiming Tan, Marcelo H S Paiva, Duschinka R D Guedes, Mônica M Crespo, Constância F J Ayres
The World Health Organization (WHO) recommends that people travelling to or living in areas with Zika virus (ZIKV) outbreaks or epidemics adopt prophylactic measures to reduce or eliminate mosquito bites, including the use of insect repellents. It is, however, unknown whether repellents are effective against ZIKV-infected mosquitoes, in part because of the ethical concerns related to exposing a human subject's arm to infected mosquitoes in the standard arm-in-cage assay. We used a previously developed, human subject-free behavioural assay, which mimics a human subject to evaluate the top two recommended insect repellents...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28204734/zika-virus-zikv-global-public-health-disability-and-rehabilitation-connecting-the-dots%C3%A2
#12
Michel D Landry, Sudha R Raman, Kai Kennedy, Janet Prvu Bettger, Dawn Magnusson
No abstract text is available yet for this article.
February 16, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28203251/sulfated-glycans-and-related-digestive-enzymes-in-the-zika-virus-infectivity-potential-mechanisms-of-virus-host-interaction-and-perspectives-in-drug-discovery
#13
REVIEW
Vitor H Pomin
As broadly reported, there is an ongoing Zika virus (ZIKV) outbreak in countries of Latin America. Recent findings have demonstrated that ZIKV causes severe defects on the neural development in fetuses in utero and newborns. Very little is known about the molecular mechanisms involved in the ZIKV infectivity. Potential therapeutic agents are also under investigation. In this report, the possible mechanisms of action played by glycosaminoglycans (GAGs) displayed at the surface proteoglycans of host cells, and likely in charge of interactions with surface proteins of the ZIKV, are highlighted...
2017: Interdisciplinary Perspectives on Infectious Diseases
https://www.readbyqxmd.com/read/28202931/zika-the-emerging-epidemic-donald-g-mcneil-w-w-norton-new-york-2016-203%C3%A2-pp-isbn-978-0-393-35396-9
#14
Adolfo Martínez-Palomo
No abstract text is available yet for this article.
December 2016: Journal of Public Health Policy
https://www.readbyqxmd.com/read/28202376/structural-features-of-zika-virus-non-structural-proteins-3-and-5-and-its-individual-domains-in-solution-as-well-as-insights-into-ns3-inhibition
#15
Wuan Geok Saw, Ankita Pan, Malathy Sony Subramanian Manimekalai, Gerhard Grüber
Zika virus (ZIKV) has emerged as a pathogen of major health concern. The virus relies on its non-structural protein 5 (NS5) including a methyl-transferase (MTase) and a RNA-dependent RNA polymerase (RdRp) for capping and synthesis of the viral RNA and the nonstructural protein 3 (NS3) with its protease and helicase domain for polyprotein possessing, unwinding dsRNA proceeding replication, and NTPase/RTPase activities. In this study we present for the first time insights into the overall structure of the entire French Polynesia ZIKV NS3 in solution...
February 12, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28200111/real-time-assessment-of-health-care-requirements-during-the-zika-virus-epidemic-in-martinique
#16
Alessio Andronico, Frédérique Dorléans, Jean-Louis Fergé, Henrik Salje, Frédéric Ghawché, Aissatou Signate, Elise Daudens-Vaysse, Laure Baudouin, Timothée Dub, Maite Aubry, Van-Mai Cao-Lormeau, Martine Ledrans, Harold Noel, Henri-Pierre Mallet, Arnaud Fontanet, André Cabié, Simon Cauchemez
No abstract text is available yet for this article.
February 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28199846/frequent-zika-virus-sexual-transmission-and-prolonged-viral-rna-shedding-in-an-immunodeficient-mouse-model
#17
Nisha K Duggal, Jana M Ritter, Samuel E Pestorius, Sherif R Zaki, Brent S Davis, Gwong-Jen J Chang, Richard A Bowen, Aaron C Brault
Circulation of Zika virus (ZIKV) was first identified in the Western hemisphere in late 2014. Primarily transmitted through mosquito bite, ZIKV can also be transmitted through sex and from mother to fetus, and maternal ZIKV infection has been associated with fetal malformations. We assessed immunodeficient AG129 mice for their capacity to shed ZIKV in semen and to infect female mice via sexual transmission. Infectious virus was detected in semen between 7 and 21 days post-inoculation, and ZIKV RNA was detected in semen through 58 days post-inoculation...
February 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/28199323/a-large-scale-biorational-approach-using-bacillus-thuringiensis-israeliensis-strain-am65-52-for-managing-aedes-aegypti-populations-to-prevent-dengue-chikungunya-and-zika-transmission
#18
Catherine A Pruszynski, Lawrence J Hribar, Robert Mickle, Andrea L Leal
BACKGROUND: Aedes aegypti is a container-inhabiting mosquito and a vector of dengue, chikungunya, and Zika viruses. In 2009 several cases of autochthonous dengue transmission were reported in Key West, Florida, USA prompting a comprehensive response to control A. aegypti. In Key West, larvae of this mosquito develop in containers around human habitations which can be numerous and labor intensive to find and treat. Aerial applications of larvicide covering large areas in a short time can be an efficient and economical method to control A...
2017: PloS One
https://www.readbyqxmd.com/read/28198548/phylogenetic-characterization-of-circulating-dengue-and-alkhumra-hemorrhagic-fever-viruses-in-western-saudi-arabia-and-lack-of-evidence-of-zika-virus-in-the-region-a-retrospective-study-2010-2015
#19
Moneerah S Al-Saeed, Sherif A El-Kafrawy, Suha A Farraj, Tagreed L Al-Subhi, Norah A Othman, Arwa Alsultan, Huda G Ben Helaby, Mustafa M Alshawdari, Ahmed M Hassan, Remi N Charrel, Esam I Azhar, Anwar M Hashem
Flaviviruses represent a global public health concern. They consist of ∼70 viruses with almost half of them causing human diseases with unspecified febrile illnesses. Cities in western Saudi Arabia are endemic for viruses (DENV) with sporadic infections due to Alkhumra hemorrhagic fever virus (AHFV). They also represent a major destination for travelers coming for annual religious pilgrimages (Hajj and Umrah) from all over the world. However, whether other flaviviruses are circulating is not known because of the limited number of surveillance studies...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28198446/a-mutation-identified-in-neonatal-microcephaly-destabilizes-zika-virus-ns1-assembly-in-vitro
#20
Deping Wang, Cheng Chen, Shengnan Liu, Han Zhou, Kailin Yang, Qi Zhao, Xiaoyun Ji, Chen Chen, Wei Xie, Zefang Wang, Li-Zhi Mi, Haitao Yang
An unprecedented epidemic of Zika virus (ZIKV) infection had spread to South and Central America. ZIKV infection was recently confirmed by CDC (the Centers for Disease Control and Prevention) to cause neonatal microcephaly, which posed a significant public health emergency of international concern. No specific vaccines or drugs are currently available to fight ZIKV infection. ZIKV nonstructural protein 1 (NS1) plays an essential role in viral replication and immune evasion. We determined the crystal structure of ZIKV NS1172-352, which forms a head-to-head, symmetric dimer with a unique 14-stranded β-ladder conserved among flaviviruses...
February 15, 2017: Scientific Reports
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