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https://www.readbyqxmd.com/read/28527892/outbreak-of-zika-virus-infection-in-singapore-an-epidemiological-entomological-virological-and-clinical-analysis
#1
(no author information available yet)
BACKGROUND: An outbreak of Zika virus infection was detected in Singapore in August, 2016. We report the first comprehensive analysis of a national response to an outbreak of Zika virus infection in Asia. METHODS: In the first phase of the outbreak, patients with suspected Zika virus infection were isolated in two national referral hospitals until their serum tested negative for the virus. Enhanced vector control and community engagement measures were deployed in disease clusters, including stepped-up mosquito larvicide and adulticide use, community participation in source reduction (destruction of mosquito breeding sites), and work with the local media to promote awareness of the outbreak...
May 17, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28527274/caracter%C3%A3-sticas-de-la-estructura-molecular-de-las-prote%C3%A3-nas-e-del-virus-del-zika-y-e1-del-virus-de-la-rub%C3%A3-ola-y-posibles-implicaciones-en-el-neurotropismo-y-en-las-alteraciones-del-sistema-nervioso
#2
Luis Alberto Gómez, Gladis Montoya, Hernán Mauricio Rivera, Juan Carlos Hernández
Introducción. El virus del Zika (ZIKV) es un flavivirus con envoltura, transmitido a los seres humanos principalmente por el vector Aedes aegypti. La infección por ZIKV se ha asociado con un gran neurotropismo y con efectos neuropáticos, como el síndrome de Guillain-Barré en el adulto y la microcefalia fetal y posnatal, así como con un síndrome de infección congénita similar al producido por el virus de la rubéola (RV).Objetivo. Comparar las estructuras moleculares de la proteína de envoltura E del virus del Zika (E-ZIKV) y de la E1 del virus de la rubéola (E1-RV), y plantear posibles implicaciones en el neurotropismo y en las alteraciones del sistema nervioso asociadas con el ZIKV...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526495/automated-external-defibrillator-and-operator-performance-in-out-of-hospital-cardiac-arrest
#3
Jolande A Zijlstra, Loes E Bekkers, Michiel Hulleman, Stefanie G Beesems, Rudolph W Koster
AIM: An increasing number of failing automated external defibrillators (AEDs) is reported: AEDs not giving a shock or other malfunction. We assessed to what extent AEDs are 'failing' and whether this had a device-related or operator-related cause. METHODS: We studied analysis periods from AEDs used between January 2012 and December 2014. For each analysis period we assessed the correctness of the (no)-shock advice (sensitivity/specificity) and reasons for an incorrect (no)-shock advice...
May 16, 2017: Resuscitation
https://www.readbyqxmd.com/read/28526066/transovarial-transmission-of-denv-in-aedes-aegypti-in-the-amazon-basin-a-local-model-of-xenomonitoring
#4
Cristiano Fernandes da Costa, Ricardo Augusto Dos Passos, José Bento Pereira Lima, Rosemary Aparecida Roque, Vanderson de Souza Sampaio, Thais Bonifácio Campolina, Nágila Francinete Costa Secundino, Paulo Filemon Paolucci Pimenta
BACKGROUND: Transovarial transmission of dengue virus in Aedes spp. mosquitoes is considered an important mechanism for the maintenance of the virus in nature and may be implicated in the occurrence of outbreaks and epidemics of the disease. However, there are few studies involving transovarial transmission and viral vector monitoring as a surveillance tool and control strategy. The present study evaluated transovarial transmission of dengue virus in Aedes aegypti populations as a xenomonitoring strategy in municipalities of the Amazonas state...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28525786/steroid-bioaccumulation-profiles-in-typical-freshwater-aquaculture-environments-of-south-china-and-their-human-health-risks-via-fish-consumption
#5
Shan Liu, Xiang-Rong Xu, Zhan-Hui Qi, Hui Chen, Qin-Wei Hao, Yong-Xia Hu, Jian-Liang Zhao, Guang-Guo Ying
More attention was previously paid to adverse effects of steroids on aquatic organisms and their ecological risks to the aquatic environment. So far, little information has been reported on the bioaccumulative characteristics of different classes of steroids in cultured fish tissues. The present study for the first time provided a comprehensive analysis of the occurrence, bioaccumulation, and global consumers' health risks via fish consumption of androgens, glucocorticoids and progestanges in typical freshwater cultured farms in South China...
May 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28525510/zika-virus-obstetric-and-pediatric-anesthesia-considerations
#6
Jacqueline L Tutiven, Benjamin T Pruden, James S Banks, Mario Stevenson, David J Birnbach
As of November 2016, the Florida Department of Health (FDH) and the Centers for Disease Control and Prevention have confirmed more than 4000 travel-related Zika virus (ZIKV) infections in the United States with >700 of those in Florida. There have been 139 cases of locally acquired infection, all occurring in Miami, Florida. Within the US territories (eg, Puerto Rico, US Virgin Islands), >30,000 cases of ZIKV infection have been reported. The projected number of individuals at risk for ZIKV infection in the Caribbean and Latin America approximates 5 million...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28524874/impact-of-simultaneous-exposure-to-arboviruses-on-infection-and-transmission-by-aedes-aegypti-mosquitoes
#7
Claudia Rückert, James Weger-Lucarelli, Selene M Garcia-Luna, Michael C Young, Alex D Byas, Reyes A Murrieta, Joseph R Fauver, Gregory D Ebel
The recent emergence of both chikungunya and Zika viruses in the Americas has significantly expanded their distribution and has thus increased the possibility that individuals may become infected by more than one Aedes aegypti-borne virus at a time. Recent clinical data support an increase in the frequency of coinfection in human patients, raising the likelihood that mosquitoes could be exposed to multiple arboviruses during one feeding episode. The impact of coinfection on the ability of relevant vector species to transmit any of these viruses (that is, their vector competence) has not been determined...
May 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28523613/eco-friendly-and-cost-effective-ag-nanocrystals-fabricated-using-the-leaf-extract-of-habenaria-plantaginea-toxicity-on-six-mosquito-vectors-and-four-non-target-species
#8
Chinnadurai Aarthi, Marimuthu Govindarajan, Pichaimuthu Rajaraman, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Ramzi A Mothana, Nasir A Siddiqui, Giovanni Benelli
Recently, the biofabrication of metal nanoparticles has gained wide interest owing to its inherent features such as swift, simplicity, eco-friendliness, and cheaper costs. Different green-reducing agents led to the production of nanoparticles with varying toxicity on insects. In the current study, silver nanoparticles (AgNPs) were successfully synthesized using Habenaria plantaginea leaf extract. Ag nanoparticles were studied by UV-Vis spectroscopy (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS), and transmission electron microscopy (TEM)...
May 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28522305/the-girona-territori-cardioprotegit-project-performance-evaluation-of-public-defibrillators
#9
Pablo Loma-Osorio, Maria Nuñez, Jaime Aboal, Daniel Bosch, Pau Batlle, Ester Ruiz de Morales, Rafael Ramos, Josep Brugada, Hisao Onaga, Alex Morales, Josep Olivet, Ramon Brugada
INTRODUCTION AND OBJECTIVES: In recent years, public access defibrillation programs have exponentially increased the availability of automatic external defibrillators (AED) in public spaces but there are no data on their performance in our setting. We conducted a descriptive analysis of the performance of AED since the launch of a public defibrillation program in our region. METHODS: A retrospective analysis was conducted of electrocardiographic tracings and the performance of AED in a public defibrillation program from June 2011 to June 2015 in the province of Girona, Spain...
May 15, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28521600/quantitative-structure-activity-relationship-study-of-amide-mosquito-repellents
#10
P Wang, X Xu, S Liao, J Song, G Fan, S Chen, Z Wang
A quantitative structure-activity relationship (QSAR) study on 43 amide repellents was carried out by the heuristic method in order to reveal the correlations between molecular parameters of these amides and their repellency against Aedes aegypti. Sketches and optimizations of molecular structures were achieved by the Gaussian software package. Generation and screening of molecular parameters were accomplished using CODESSA 2.7.10 software. The leave-one-out method was applied for the model validation. The results showed that a four-descriptor QSAR model with r(2) of 0...
April 2017: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/28521115/anticonvulsant-profile-of-the-neuroactive-steroid-sge-516-in-animal-models
#11
Rebecca S Hammond, Alison L Althaus, Michael A Ackley, Carla Maciag, Gabriel Martinez Botella, Francesco G Salituro, Albert J Robichaud, James J Doherty
Despite the availability of multiple antiepileptic drugs (AED), failure to adequately control seizures is a challenge for approximately one third of epilepsy patients, and new therapies with a differentiated mechanism of action are needed. The neuroactive steroid, SGE-516, is a positive allosteric modulator of both gamma- and delta-containing GABAA receptors. This broad GABAA receptor activity differentiates neuroactive steroids like SGE-516 from benzodiazepines, a class of anticonvulsants which have been shown in vitro to selectively target gamma-subunit containing GABAA receptors...
May 7, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28520817/heat-in-the-southeastern-united-states-characteristics-trends-and-potential-health-impact
#12
Jeremy E Diem, Christine E Stauber, Richard Rothenberg
High summer temperatures in extratropical areas have an impact on the public's health, mainly through heat stress, high air pollution concentrations, and the transmission of tropical diseases. The purpose of this study is to examine the current characteristics of heat events and future projections of summer apparent temperature (AT)-and associated health concerns-throughout the southeastern United States. Synoptic climatology was used to assess the atmospheric characteristics of extreme heat days (EHDs) from 1979-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28518022/high-frequency-of-mayaro-virus-igm-among-febrile-patients-central-brazil
#13
Sandra Brunini, Divânia Dias Silva França, Juliana Brasiel Silva, Leandro Nascimento Silva, Flúvia Pereira Amorim Silva, Mariana Spadoni, Giovanni Rezza
Mayaro virus (MAYV), an Aedes mosquito-borne alphavirus, is endemic to Brazil and other South America countries. We investigated dengue- and chikungunya-negative febrile patients visiting rural areas near Goiânia, Goiás, and found a high proportion (55%) of MAYV IgM. Our findings suggest the presence of highly endemic foci of MAYV in central Brazil.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28517033/high-throughput-sequencing-of-transposable-element-insertions-suggests-adaptive-evolution-of-the-invasive-asian-tiger-mosquito-towards-temperate-environments
#14
Clément Goubert, Hélène Henri, Guillaume Minard, Claire Valiente Moro, Patrick Mavingui, Cristina Vieira, Matthieu Boulesteix
Invasive species represent unique opportunities to evaluate the role of local adaptation during colonization of new environments. Among these species, the Asian tiger mosquito, Aedes albopictus, is a threatening vector of several human viral diseases, including dengue and chikungunya, and raises concerns about the Zika fever. Its broad presence in both temperate and tropical environments has been considered the reflection of great "ecological plasticity". However, no study has been conducted to assess the role of adaptive evolution in the ecological success of Ae...
May 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28516037/zika-virus-infection-in-a-newly-married-greek-couple
#15
Petros Ioannou, Stella Soundoulounaki, Nikolaos Spernovasilis, Elpida Papadopoulou, Anna Papa, Achilleas Gikas
Zika virus (ZIKV) is a member of the Flaviviridae family causing asymptomatic or mildly symptomatic infections with fever, rash, arthralgia and headache. It is transmitted by the Aedes species mosquitoes and also sexually and transplacentally, and has been recently associated with congenital neurologic birth defects in South and Central America. We report the case of a newly married couple from Greece who travelled to Cuba for their honeymoon and developed mild symptoms consistent with arboviral infection. After returning to Greece, they were found to have been infected by Zika virus during their honeymoon...
2017: IDCases
https://www.readbyqxmd.com/read/28514450/evolutionary-enhancement-of-zika-virus-infectivity-in-aedes-aegypti-mosquitoes
#16
Yang Liu, Jianying Liu, Senyan Du, Chao Shan, Kaixiao Nie, Rudian Zhang, Xiao-Feng Li, Renli Zhang, Tao Wang, Cheng-Feng Qin, Penghua Wang, Pei-Yong Shi, Gong Cheng
Zika virus (ZIKV) remained obscure until the recent explosive outbreaks in French Polynesia (2013-2014) and South America (2015-2016). Phylogenetic studies have shown that ZIKV has evolved into African and Asian lineages. The Asian lineage of ZIKV was responsible for the recent epidemics in the Americas. However, the underlying mechanisms through which ZIKV rapidly and explosively spread from Asia to the Americas are unclear. Non-structural protein 1 (NS1) facilitates flavivirus acquisition by mosquitoes from an infected mammalian host and subsequently enhances viral prevalence in mosquitoes...
May 17, 2017: Nature
https://www.readbyqxmd.com/read/28511919/the-debate-treatment-after-the-first-seizure-the-pro
#17
REVIEW
David G Olmes, Hajo M Hamer
According to current diagnosis criteria, first seizures constitute beginning epilepsy when they carry recurrence risks of ≥60% over the next 10 years. This is frequently the case and warrants AED treatment. Evidence argues against deferring treatment when provoking factors such as sleep deprivation are reported. There are several characteristics of first seizures which markedly increase recurrence risk but not clearly beyond 60%. This includes status epilepticus or seizure flurries at first manifestation or focal semiology indicating focal epilepsy...
May 4, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28511277/operational-mosquito-and-vector-borne-diseases-surveillance-at-incirlik-air-base-turkey
#18
Will K Reeves, Myrna M Miller, Orhan Bayik, Leah Chapman
Arboviruses on Incirlik Air Base, Turkey, pose a threat to military personnel and civilians, but might also be relevant for understanding the threats in neighboring conflict zones such as Syria. We reviewed 6 years of mosquito and arbovirus surveillance at Incirlik Air Base. Over 6,000 mosquitoes were identified as Aedes caspius, Anopheles claviger, Culex mimeticus, Cx. perexiguus, Cx. pipiens, Cx. sinaiticus, and Culiseta longiareolata. Almost all of the mosquitoes (more than 90%) were Cx. perexiguus or Cx...
January 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28511272/a-location-specific-spreadsheet-for-estimating-zika-risk-and-timing-for-zika-vector-surveillance-using-us-military-facilities-as-an-example
#19
Desmond H Foley, David B Pecor
Local Zika virus transmission in the United States involving one or both of the known vector species, Aedes aegypti and Ae. albopictus, is of major concern. To assist efforts to anticipate the risks of transmission, we developed an Excel spreadsheet tool that uses vector and virus temperature thresholds, remotely sensed maximum temperature, and habitat suitability models to answer the questions: "is Zika transmission likely here?" and "when should we conduct vector surveillance?" An example spreadsheet, updated regularly and freely available, uses near real-time and forecast temperature data to generate guidance, based on a novel four level Zika risk code, for 733 US military facilities in the 50 states, the District of Columbia, and the territories of Guam and Puerto Rico...
January 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28511270/laboratory-and-semi-field-evaluations-of-two-transfluthrin-spatial-repellent-devices-against-aedes-aegypti-l-diptera-culicidae
#20
Lee P McPhatter, Paula D Mischler, Meiling Z Webb, Kamal Chauhan, Erica J Lindroth, Alec G Richardson, Mustapha Debboun
Two transfluthrin-based spatial repellent products (Raid Dual Action Insect Repellent and Home Freshener and Raid Shield (currently not commercially available), SC Johnson, Racine WI) were evaluated for spatial repellent effects against female Aedes aegypti (L.) mosquitoes under laboratory (wind tunnel) and semi-field (outdoor enclosure) conditions. The placement of either product in the wind tunnel significantly reduced host-seeking behaviors. The mean baseline (control) landing counts for the Raid Dual Action and Raid Shield were reduced by 95% and 74% respectively...
January 2017: U.S. Army Medical Department Journal
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