keyword
MENU ▼
Read by QxMD icon Read
search

zika virus emergency

keyword
https://www.readbyqxmd.com/read/28095414/mosquito-disseminated-insecticide-for-citywide-vector-control-and-its-potential-to-block-arbovirus-epidemics-entomological-observations-and-modeling-results-from-amazonian-brazil
#1
Fernando Abad-Franch, Elvira Zamora-Perea, Sérgio L B Luz
BACKGROUND: Mosquito-borne viruses threaten public health worldwide. When the ratio of competent vectors to susceptible humans is low enough, the virus's basic reproductive number (R0) falls below 1.0 (each case generating, on average, <1.0 additional case) and the infection fades out from the population. Conventional mosquito control tactics, however, seldom yield R0 < 1.0. A promising alternative uses mosquitoes to disseminate a potent growth-regulator larvicide, pyriproxyfen (PPF), to aquatic larval habitats; this kills most mosquito juveniles and substantially reduces adult mosquito emergence...
January 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28095299/african-and-asian-zika-virus-strains-differentially-induce-early-antiviral-responses-in-primary-human-astrocytes
#2
Rodolphe Hamel, Pauline Ferraris, Sineewanlaya Wichit, Fodé Diop, Loïc Talignani, Julien Pompon, Déborah Garcia, Florian Liegeois, Amadou A Sall, Hans Yssel, Dorothée Missé
ZIKA virus (ZIKV) is a newly emerging arbovirus. Since its discovery 60years ago in Uganda, it has spread throughout the Pacific, Latin America and the Caribbean, emphasizing the capacity of ZIKV to spread to non-endemic regions worldwide. Although infection with ZIKV often leads to mild disease, its recent emergence in the Americas has coincided with an increase in adults developing Guillain-Barré syndrome and neurological complications in new-borns, such as congenital microcephaly. Many questions remain unanswered regarding the complications caused by different primary isolates of ZIKV...
January 14, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28092859/n-2-arylmethylimino-ethyl-7-chloroquinolin-4-amine-derivatives-synthesized-by-thermal-and-ultrasonic-means-are-endowed-with-anti-zika-virus-activity
#3
Giselle Barbosa-Lima, Ligia S da Silveira Pinto, Carlos R Kaiser, James L Wardell, Caroline S De Freitas, Yasmine R Vieira, Andressa Marttorelli, José Cerbino Neto, Patrícia T Bozza, Solange M S V Wardell, Marcus V N de Souza, Thiago M L Souza
Zika virus (ZIKV), an emerging Flavivirus, was recently associated with severe neurological complications and congenital diseases. Therefore, development of antiviral agents capable of inhibiting ZIKV replication is urgent. Chloroquine is a molecule with a confirmed safety history for use with pregnant women, and has been found to exhibit anti-ZIKV activity at concentrations around 10 μM. This suggests that modifications to the chloroquine structure could be promising for obtaining more effective anti-ZIKV agents...
January 6, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28081529/zika-virus-induced-microcephaly-and-its-possible-molecular-mechanism
#4
Md Imam Faizan, Mohd Abdullah, Sher Ali, Irshad H Naqvi, Anwar Ahmed, Shama Parveen
Zika virus is an arthropod-borne re-emerging pathogen associated with the global pandemic of 2015-2016. The devastating effect of Zika viral infection is reflected by its neurological manifestations such as microcephaly in newborns. This scenario evoked our interest to uncover the neurotropic localization, multiplication of the virus, and the mechanism of microcephaly. The present report provides an overview of a possible molecular mechanism of Zika virus-induced microcephaly based on recent publications. Transplacental transmission of Zika viral infection from mother to foetus during the first trimester of pregnancy results in propagation of the virus in human neural progenitor cells (hNPCs), where entry is facilitated by the receptor (AXL protein) leading to the alteration of signalling and immune pathways in host cells...
January 13, 2017: Intervirology
https://www.readbyqxmd.com/read/28076778/axl-mediates-zika-virus-entry-in-human-glial-cells-and-modulates-innate-immune-responses
#5
Laurent Meertens, Athena Labeau, Ophelie Dejarnac, Sara Cipriani, Laura Sinigaglia, Lucie Bonnet-Madin, Tifenn Le Charpentier, Mohamed Lamine Hafirassou, Alessia Zamborlini, Van-Mai Cao-Lormeau, Muriel Coulpier, Dorothée Missé, Nolwenn Jouvenet, Ray Tabibiazar, Pierre Gressens, Olivier Schwartz, Ali Amara
ZIKA virus (ZIKV) is an emerging pathogen responsible for neurological disorders and congenital microcephaly. However, the molecular basis for ZIKV neurotropism remains poorly understood. Here, we show that Axl is expressed in human microglia and astrocytes in the developing brain and that it mediates ZIKV infection of glial cells. Axl-mediated ZIKV entry requires the Axl ligand Gas6, which bridges ZIKV particles to glial cells. Following binding, ZIKV is internalized through clathrin-mediated endocytosis and traffics to Rab5+ endosomes to establish productive infection...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28074023/emergence-of-epidemic-zika-virus-transmission-and-congenital-zika-syndrome-are-recently-evolved-traits-to-blame
#6
Scott C Weaver
The mechanisms responsible for the dramatic emergence of Zika virus (ZIKV), accompanied by congenital Zika syndrome and Guillain-Barré syndrome (GBS), remain unclear. However, two hypotheses are prominent: (i) evolution for enhanced urban transmission via adaptation to mosquito vectors, or for enhanced human infection to increase amplification, or (ii) the stochastic introduction of ZIKV into large, naive human populations in regions with abundant Aedes aegypti populations, leading to enough rare, severe infection outcomes for their first recognition...
January 10, 2017: MBio
https://www.readbyqxmd.com/read/28069884/purification-of-zika-virus-rna-dependent-rna-polymerase-and-its-use-to-identify-small-molecule-zika-inhibitors
#7
Hong-Tao Xu, Said A Hassounah, Susan P Colby-Germinario, Maureen Oliveira, Clare Fogarty, Yudong Quan, Yingshan Han, Olga Golubkov, Ilinca Ibanescu, Bluma Brenner, Brent R Stranix, Mark A Wainberg
BACKGROUND: The viral RNA-dependent RNA polymerase (RdRp) enzymes of the Flaviviridae family are essential for viral replication and are logically important targets for development of antiviral therapeutic agents. Zika virus (ZIKV) is a rapidly re-emerging human pathogen for which no vaccine or antiviral agent is currently available. METHODS: To facilitate development of ZIKV RdRp inhibitors, we have established an RdRp assay using purified recombinant ZIKV NS5 polymerase...
January 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28069360/zika-virus-knowledge-attitudes-and-vaccine-interest-among-university-students
#8
Julia E Painter, Ashley N Plaster, Dylan H Tjersland, Kathryn H Jacobsen
BACKGROUND: Zika virus vaccine development is underway. We examined interest in receiving a Zika virus vaccine (after one becomes commercially available) among students at a large public university in Northern Virginia. METHODS: An online survey of Zika virus-related knowledge, attitudes, and interest in receiving a Zika vaccine was completed by 619 undergraduate students in April, 2016. Stepwise logistic regression with backward elimination was used to identify the variables most strongly associated with interest in being vaccinated against Zika virus...
January 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28068904/long-term-kinetics-of-zika-virus-rna-and-antibodies-in-body-fluids-of-a-vasectomized-traveller-returning-from-martinique-a-case-report
#9
Guenter Froeschl, Kristina Huber, Frank von Sonnenburg, Hans-Dieter Nothdurft, Gisela Bretzel, Michael Hoelscher, Lothar Zoeller, Matthias Trottmann, Francisco Pan-Montojo, Gerhard Dobler, Silke Woelfel
BACKGROUND: The magnitude of the current Zika virus (ZIKV) epidemic has led to a declaration of a Public Health Emergency of International Concern by the WHO. Findings of viable viral particles in semen for several weeks are corroborating reports of sexual transmission of ZIKV. Serious consequences of a positive diagnostic result particularly in the pregnant patient are calling for precise diagnostic tools also at later time points after infection. Currently, recommendations suggest a diagnostic period of direct viral detection of 5 to 7 days after onset of symptoms in serum or plasma, and up to 3 weeks in urine samples...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28056005/zika-virus-10-public-health-achievements-in-2016-and-future-priorities
#10
Nadia L Oussayef, Satish K Pillai, Margaret A Honein, C Ben Beard, Beth Bell, Coleen A Boyle, Lars M Eisen, Katrin Kohl, Matthew J Kuehnert, Eva Lathrop, Stacey W Martin, Rebecca Martin, Janet C McAllister, Elizabeth Pantino McClune, Paul Mead, Dana Meaney-Delman, Brett Petersen, Lyle R Petersen, Kara N D Polen, Ann M Powers, Stephen C Redd, James J Sejvar, Tyler Sharp, Julie Villanueva, Denise J Jamieson
The introduction of Zika virus into the Region of the Americas (Americas) and the subsequent increase in cases of congenital microcephaly resulted in activation of CDC's Emergency Operations Center on January 22, 2016, to ensure a coordinated response and timely dissemination of information, and led the World Health Organization to declare a Public Health Emergency of International Concern on February 1, 2016. During the past year, public health agencies and researchers worldwide have collaborated to protect pregnant women, inform clinicians and the public, and advance knowledge about Zika virus (Figure 1)...
January 6, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28053366/acute-flaccid-paralysis-incidence-and-zika-virus-surveillance-pacific-islands
#11
Adam T Craig, Michelle T Butler, Roberta Pastore, Beverley J Paterson, David N Durrheim
PROBLEM: The emergence of Zika virus has challenged outbreak surveillance systems in many at-risk, low-resource countries. As the virus has been linked with Guillain-Barré syndrome, routine data on the incidence of acute flaccid paralysis (AFP) may provide a useful early warning system for the emergence of Zika virus. APPROACH: We documented all Zika virus outbreaks and cases in 21 Pacific Islands and territories for the years 2007 to 2015. We extracted data from the Global Polio Eradication Initiative database on the reported and expected annual incidence of AFP in children younger than 15 years...
January 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/28051181/the-larvicide-pyriproxyfen-blamed-during-the-zika-virus-outbreak-does-not-cause-microcephaly-in-zebrafish-embryos
#12
Stefania Dzieciolowska, Anne-Laure Larroque, Elizabeth-Ann Kranjec, Pierre Drapeau, Eric Samarut
Although the zika virus (ZIKV) has now been strongly correlated with emerging cases of microcephaly in the Americas, suspicions have been raised regarding the use of pyriproxyfen, a larvicide that prevents mosquito development, in drinking water. The effects of this compound on neurodevelopment have not yet been addressed specifically in vertebrates. As a result, we aimed at addressing the effects, if any, of pyriproxyfen on neurodevelopment in the zebrafish embryo as a vertebrate model. Using zebrafish transgenic lines expressing GFP in different cell populations (elavl3 in newborn neurons, gfap and nestin in neural stem cells), we focused on the analysis of whole embryonic brain volume after confocal 3D-reconstruction and the quantification of purified neural stem cells during early neurodevelopment by FACS-cell sorting from whole in vivo embryos...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28050952/zika-virus-and-assisted-reproductive-technology-to-test-or-not-to-test-that-is-the-question-is-it-an-unnecessary-cost-the-first-two-months-of-mandatory-testing-in-an-outbreak-area-in-rio-de-janeiro-brazil
#13
Maria do Carmo B de Souza, Veronica Raupp, Fernanda Sobrinho, Mariana Menezes, Tatiana R Panaino, Maria A Tamm, Ana C A Mancebo, Ana L R Costa, Roberto A Antunes
OBJECTIVE: Infection by the Zika virus is a Public Health Emergency of International Concern as defined by the World Health Organization. Resolution no. 72, issued by the Collegiate Board of the Brazilian Health Surveillance Agency (ANVISA) on March 30, 2016, made ZKV testing mandatory prior to procedures involving germ cells and tissues. This paper aims to discuss the aforementioned Resolution from the standpoint of evidence and cost-effectiveness of the measures taken within the first two months of mandatory testing...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28049006/obatoclax-saliphenylhalamide-and-gemcitabine-inhibit-zika-virus-infection-in%C3%A2-vitro-and-differentially-affect-cellular-signaling-transcription-and-metabolism
#14
Suvi Kuivanen, Maxim M Bespalov, Jatin Nandania, Aleksandr Ianevski, Vidya Velagapudi, Jef K De Brabander, Denis E Kainov, Olli Vapalahti
An epidemic of Zika virus (ZIKV) infection associated with congenital abnormalities such as microcephaly, is ongoing in the Americas and the Pacific. Currently there are no approved therapies to treat this emerging viral disease. Here, we tested three cell-directed broad-spectrum antiviral compounds against ZIKV replication using human retinal pigment epithelial (RPE) cells and a low-passage ZIKV strain isolated from fetal brain. We found that obatoclax, SaliPhe, and gemcitabine inhibited ZIKV infections at noncytotoxic concentrations...
December 31, 2016: Antiviral Research
https://www.readbyqxmd.com/read/28045901/zika-virus-infection-as-a-cause-of-congenital-brain-abnormalities-and-guillain-barr%C3%A3-syndrome-systematic-review
#15
Fabienne Krauer, Maurane Riesen, Ludovic Reveiz, Olufemi T Oladapo, Ruth Martínez-Vega, Teegwendé V Porgo, Anina Haefliger, Nathalie J Broutet, Nicola Low
BACKGROUND: The World Health Organization (WHO) stated in March 2016 that there was scientific consensus that the mosquito-borne Zika virus was a cause of the neurological disorder Guillain-Barré syndrome (GBS) and of microcephaly and other congenital brain abnormalities based on rapid evidence assessments. Decisions about causality require systematic assessment to guide public health actions. The objectives of this study were to update and reassess the evidence for causality through a rapid and systematic review about links between Zika virus infection and (a) congenital brain abnormalities, including microcephaly, in the foetuses and offspring of pregnant women and (b) GBS in any population, and to describe the process and outcomes of an expert assessment of the evidence about causality...
January 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28041959/substrate-selectivity-of-dengue-and-zika-virus-ns5-polymerase-towards-2-modified-nucleotide-analogues
#16
Supanee Potisopon, François Ferron, Véronique Fattorini, Barbara Selisko, Bruno Canard
In targeting the essential viral RNA-dependent RNA-polymerase (RdRp), nucleotide analogues play a major role in antiviral therapies. In the Flaviviridae family, the hepatitis C virus (HCV) can be eradicated from chronically infected patients using a combination of drugs which generally include the 2'-modified uridine analogue Sofosbuvir, delivered as nucleotide prodrug. Dengue and Zika viruses are emerging flaviviruses whose RdRp is closely related to that of HCV, yet no nucleoside drug has been clinically approved for these acute infections...
December 29, 2016: Antiviral Research
https://www.readbyqxmd.com/read/28035650/the-emerging-zika-virus-threat-a-guide-for-dermatologists
#17
REVIEW
Alice He, Patrícia Brasil, Andre M Siqueira, Guilherme A Calvet, Shawn G Kwatra
We provide a guide for dermatologists to follow if they encounter patients with a rash and clinical history suspicious of Zika virus infection, including diagnostic testing and management options. We also provide an illustrative case report of a patient from Brazil who was diagnosed with Zika virus infection after presenting with a generalized pruritic rash. One of the most prominent symptoms of Zika virus infection is a cutaneous eruption. As such, it is especially necessary for dermatologists to understand this virus so that they may appropriately recognize this entity as a diagnostic consideration in the clinic...
December 29, 2016: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28035106/zika-virus-infection-past-and-present-of-another-emerging-vector-borne-disease
#18
REVIEW
Hercules Sakkas, Vangelis Economou, Chrissanthy Papadopoulou
Zika virus infection is an emerging mosquito-borne disease, first identified in Uganda in 1947. It is caused by the Zika arbovirus, and transmitted by the bites of infected mosquitoes of the genus Aedes. For almost half a century, the Zika virus was reported as the causative agent of sporadic human infections. In 2007, the Zika virus emerged outside Asia and Africa causing an epidemic on the Island of Yap in Micronesia. The manifestation of the newly acquired human infection varies from asymptomatic to self-limiting acute febrile illness with symptoms and clinical features similar to those caused by the Dengue virus ('Dengue-like syndrome')...
October 2016: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28034593/one-health-proof-of-concept-bringing-a-transdisciplinary-approach-to-surveillance-for-zoonotic-viruses-at-the-human-wild-animal-interface
#19
Terra R Kelly, William B Karesh, Christine Kreuder Johnson, Kirsten V K Gilardi, Simon J Anthony, Tracey Goldstein, Sarah H Olson, Catherine Machalaba, Jonna A K Mazet
As the world continues to react and respond inefficiently to emerging infectious diseases, such as Middle Eastern Respiratory Syndrome and the Ebola and Zika viruses, a growing transdisciplinary community has called for a more proactive and holistic approach to prevention and preparedness - One Health. Such an approach presents important opportunities to reduce the impact of disease emergence events and also to mitigate future emergence through improved cross-sectoral coordination. In an attempt to provide proof of concept of the utility of the One Health approach, the US Agency for International Development's PREDICT project consortium designed and implemented a targeted, risk-based surveillance strategy based not on humans as sentinels of disease but on detecting viruses early, at their source, where intervention strategies can be implemented before there is opportunity for spillover and spread in people or food animals...
December 14, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28032327/emerging-zika-virus-infection-a-rapidly-evolving-situation
#20
Bordi Licia, Avsic-Zupanc Tatjana, Lalle Eleonora, Vairo Francesco, Capobianchi Maria Rosaria, Pedro Fernando da Costa Vasconcelos
Zika virus is a mosquito-borne flavivirus, firstly identified in Uganda and responsible for sporadic human cases in Africa and Asia until recently, when large outbreak occurred in Pacific Ocean and the Americas. Since the main vectors during its spread outside of Africa have been Ae. albopictus and Ae. aegypti mosquitoes, which are widely distributed all over the world, there is urgent need for a coordinated response for prevention and spread of ZIKV epidemics.Despite clinical manifestation of Zika virus infection are usually mild and self limiting, there are reports suggesting, during the recent epidemic, an association of ZIKV infection with severe consequences, including fetal/newborn microcephaly, due to vertical in utero transmission, autoimmune-neurological presentations including cranial nerve dysfunction, and Guillain-Barré Syndrome in adults...
December 29, 2016: Advances in Experimental Medicine and Biology
keyword
keyword
100134
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"