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Arbovirus outbreaks

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https://www.readbyqxmd.com/read/29324725/west-nile-virus-and-other-nationally-notifiable-arboviral-diseases-united-states-2016
#1
Alexis Burakoff, Jennifer Lehman, Marc Fischer, J Erin Staples, Nicole P Lindsey
Arthropod-borne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes and ticks. West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease in the continental United States (1,2). Other arboviruses, including La Crosse, Powassan, Jamestown Canyon, St. Louis encephalitis, and eastern equine encephalitis viruses, cause sporadic cases of disease and occasional outbreaks. This report summarizes surveillance data reported to CDC for 2016 for nationally notifiable arboviruses...
January 12, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29322519/inactivation-of-chikungunya-virus-in-blood-components-treated-with-amotosalen-ultraviolet-a-light-or-amustaline-glutathione
#2
Andrew Laughhunn, Yan-Jang S Huang, Dana L Vanlandingham, Marion C Lanteri, Adonis Stassinopoulos
BACKGROUND: Chikungunya virus, a mosquito-borne arbovirus, often co-circulates with the Zika, dengue, and yellow fever viruses in Aedes mosquito-infested areas where cases of arbovirus transfusion-transmitted infections have been reported. Building on past experience to help maintain the availability of safe components during major outbreaks of chikungunya virus in La Reunion, Italy, and Thailand and of Zika virus in the Pacific, the Caribbean, and the Americas, pathogen inactivation is a mitigation strategy to reduce the risk of transfusion-transmitted infection...
January 10, 2018: Transfusion
https://www.readbyqxmd.com/read/29318332/-zika-virus-infection-and-the-nervous-system
#3
REVIEW
I W Husstedt, M Maschke, C Eggers, E Neuen-Jacob, G Arendt
Zika virus is an arbovirus from the family of flaviviruses, which is transmitted by the mosquito Aedes aegyptii and also by the Asian mosquito Aedes albopticus. The largest observed Zika virus epidemic is currently taking place in North and South America, in the Caribbean, southern USA and Southeast Asia. In most cases the infection is an unspecific, acute, febrile disease. Neurological manifestations consist mainly of microcephaly in newborns and Guillain-Barré syndrome but other rare manifestations have also become known in the meantime, such as meningoencephalitis and myelitis...
January 9, 2018: Der Nervenarzt
https://www.readbyqxmd.com/read/29305089/how-do-virus-mosquito-interactions-lead-to-viral-emergence
#4
REVIEW
Claudia Rückert, Gregory D Ebel
Arboviruses such as West Nile, Zika, chikungunya, dengue, and yellow fever viruses have become highly significant global pathogens through unexpected, explosive outbreaks. While the rapid progression and frequency of recent arbovirus outbreaks is associated with long-term changes in human behavior (globalization, urbanization, climate change), there are direct mosquito-virus interactions which drive shifts in host range and alter virus transmission. This review summarizes how virus-mosquito interactions are critical for these viruses to become global pathogens at molecular, physiological, evolutionary, and epidemiological scales...
January 2, 2018: Trends in Parasitology
https://www.readbyqxmd.com/read/29298885/recombinant-chimpanzee-adenovirus-vaccine-adc7-m-e-protects-against-zika-virus-infection-and-testis-damage
#5
Kun Xu, Yufeng Song, Lianpan Dai, Yongli Zhang, Xuancheng Lu, Yijia Xie, Hangjie Zhang, Tao Cheng, Qihui Wang, Qingrui Huang, Yuhai Bi, William J Liu, Wenjun Liu, Xiangdong Li, Chuan Qin, Yi Shi, Jinghua Yan, Dongming Zhou, George F Gao
The recent outbreak of Zika virus (ZIKV) has emerged as a global health concern. ZIKV can persist in human semen and be transmitted by sexual contact, as well as by mosquitos as seen for classical arboviruses. We and others have previously demonstrated that ZIKV infection leads to testis damage and infertility in mouse models. So far, no prophylactics or therapeutics are available, therefore, vaccine development is urgently demanded. Recombinant chimpanzee adenovirus has been explored as the preferred vaccine vector for many pathogens due to the low pre-existing immunity against the vector among the human population...
January 3, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29287308/chikungunya-virus-arthritis-implications-of-acute-and-chronic-inflammation-mechanisms-on-patient-management
#6
REVIEW
Ali Zaid, Patrick Gérardin, Adam Taylor, Helen Mostafavi, Denis Malvy, Suresh Mahalingam
In the past decade, arboviruses - arthropod-borne viruses - have been the focus of public health institutions worldwide following a spate of devastating outbreaks. Chikungunya virus (CHIKV), an arbovirus that belongs to the alphavirus genus, is a re-emerging arthritogenic virus that has caused explosive outbreaks since 2006, notably in the Reunion Island, and more recently in the Caribbean, South America, India and South-East Asia. The severity of arthritic disease caused by CHIKV has prompted public health authorities of affected countries to develop specific guidelines to tackle this pathogen...
December 29, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29278457/first-evidence-of-resistance-to-pyrethroid-insecticides-in-italian-aedes-albopictus-populations-after-26-years-since-invasion
#7
Verena Pichler, Romeo Bellini, Rodolfo Veronesi, Daniele Arnoldi, Annapaola Rizzoli, Riccardo Paolo Lia, Domenico Otranto, Fabrizio Montarsi, Sara Carlin, Marco Ballardini, Elisa Antognini, Marco Salvemini, Emanuele Brianti, Gabriella Gaglio, Mattia Manica, Pietro Cobre, Paola Serini, Enkelejda Velo, John Vontas, Ilias Kioulos, Joao Pinto, Alessandra Della Torre, Beniamino Caputo
BACKGROUND: Aedes albopictus has spread during the last decades all over the world. This has increased significantly the risk of exotic arbovirus transmission (e.g. Chikungunya, Dengue, and Zika) also in temperate areas, as testified by the Chikungunya 2007- and 2017-outbreaks in north-east and central Italy. Insecticides represent a main tool for limiting the circulation of these mosquito-borne viruses. The aim of the present study is to start filling the current gap of knowledge on pyrethroid insecticide resistance of European Ae...
December 26, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29274465/laboratory-preparedness-and-response-with-a-focus-on-arboviruses-in-europe
#8
REVIEW
Chantal B Reusken, Margareta Ieven, Louise Sigfrid, Isabella Eckerle, Marion Koopmans
BACKGROUND: The global health burden of arboviruses is continuously rising which results in increasing pressure on local and (inter)national laboratory infrastructures. Timely and accurate diagnosis of cases is one of the main pillars for public health and clinical responses to an arbovirus emergence. AIMS AND SOURCES: This narrative review aims to summarize recent advances and to identify needs in laboratory preparedness and response activities, with a focus on viruses transmitted by arthropods in Europe...
December 20, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29243225/review-current-priorities-in-the-zika-response
#9
REVIEW
Danillo Lucas Alves Esposito, Jonathan Ballico de Moraes, Benedito Antonio Lopes da Fonseca
Zika virus (ZIKV), a single-stranded RNA virus of the Flaviviridae family, is an arbovirus (viruses transmitted by arthropods) transmitted to humans and non-human primates through the bites of infected female Aedes sp. mosquitoes. Although first isolated in 1947, only recently it emerged as a global threat, present in several countries resulting in a pandemic scenario. ZIKV infections may result in severe outcomes, such as neurological impairment, and with the intrinsic ability of inducing microcephaly in fetuses of infected pregnant women, the virus has become a major public health problem...
December 15, 2017: Immunology
https://www.readbyqxmd.com/read/29228413/estimating-vector-borne-viral-infections-in-the-urban-setting-of-the-2020-tokyo-olympics-japan-using-mathematical-modeling
#10
Hiroyuki Furuya
The first domestic outbreak of dengue fever in Japan since 1945 was reported in Tokyo in 2014. Meanwhile, daily mean summer temperatures are expected to continue to rise world-wide. Such conditions are expected to increase the risk of an arbovirus outbreak at the 2020 Tokyo Olympic Games. To address this possibility, the present study compared estimates of the risk of infection by dengue, chikungunya, and Zika viruses in urban areas. To compare the risk of infection by arboviruses transmitted by Ae. albopictus mosquitoes, the reproduction number for each of three arboviruses was estimated under the environmental conditions associated with the 2014 dengue outbreak in Tokyo, and additionally under conditions assuming a daily mean temperature elevation of 2° C...
December 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/29219883/zika-virus-and-the-rio-olympic-games
#11
Bruce Hamilton, Dan Exeter, Sarah Beable, Lynne Coleman, Chris Milne
OBJECTIVE: To evaluate the impact of Zika virus on preparation and management of the New Zealand (NZ) Olympic team. DESIGN: Descriptive manuscript. SETTING: New Zealand Olympic Health team preparation and management during the Rio de Janeiro Olympic Games, 2016. PATIENTS (OR PARTICIPANTS): New Zealand Olympic Team members. INTERVENTIONS (OR ASSESSMENT OF RISK FACTORS): This manuscript describes the approaches used by the NZ Olympic Health team to the minimization of risk from Zika virus...
December 1, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29216533/assessing-the-zoonotic-potential-of-arboviruses-of-african-origin
#12
REVIEW
Marietjie Venter
Several African arboviruses have emerged over the past decade in new regions where they caused major outbreaks in humans and/or animals including West Nile virus, Chikungunya virus and Zika virus. This raise questions regarding the importance of less known zoonotic arboviruses in local epidemics in Africa and their potential to emerge internationally. Syndromic surveillance in animals may serve as an early warning system to detect zoonotic arbovirus outbreaks. Rift Valley fever and Wesselsbronvirus are for example associated with abortion storms in livestock while West Nile-virus, Shuni virus and Middelburg virus causes neurological disease outbreaks in horses and other animals...
December 4, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/29206195/psychological-distress-and-zika-dengue-and-chikungunya-symptoms-following-the-2016-earthquake-in-bah%C3%A3-a-de-car%C3%A3-quez-ecuador
#13
Anna M Stewart-Ibarra, Anita Hargrave, Avriel Diaz, Aileen Kenneson, David Madden, Moory M Romero, Juan Pablo Molina, David Macias Saltos
On 16 April 2016, a 7.8 magnitude earthquake struck coastal Ecuador, resulting in significant mortality and morbidity, damages to infrastructure, and psychological trauma. This event coincided with the first outbreak of Zika virus (ZIKV) and co-circulation with dengue virus (DENV) and chikungunya virus (CHIKV). We tested whether the degree of psychological distress was associated with the presence of suspected DENV, CHIKV, ZIKV (DCZ) infections three months after the earthquake. In July 2016, 601 household members from four communities in Bahía de Caráquez, Manabí Province, Ecuador, were surveyed in a post-disaster health evaluation...
December 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29188427/recent-progress-on-chikungunya-virus-research
#14
REVIEW
Wenxi An, Ningning Ge, Yilin Cao, Jin Sun, Xia Jin
Chikungunya virus (CHIKV) is an arbovirus transmitted by Aedes mosquitos in tropical and subtropical regions across the world. After decades of sporadic outbreaks, it re-emerged in Africa, Asia, India Ocean and America suddenly, causing major regional epidemics recently and becoming a notable global health problem. Infection by CHIKV results in a spectrum of clinical diseases including an acute self-limiting febrile illness in most individuals, a chronic phase of recurrent join pain in a proportion of patients, and long-term arthralgia for months to years for the unfortunate few...
November 28, 2017: Virologica Sinica
https://www.readbyqxmd.com/read/29182305/point-of-use-nanobiosensor-for-detection-of-dengue-virus-ns1-antigen-in-adult-aedes-aegypti-a-potential-tool-for-improved-dengue-surveillance
#15
Daniel Aaron Wasik, Ashok Mulchandani, Marylynn V Yates
Dengue virus (DENV) and its primary mosquito vectors Aedes spp., have spread to every continent except Antarctica, causing outbreaks and autochthonous transmission in previously disease-free regions. Recently, the spread of other arboviruses carried by invasive Aedes spp., such as Chikungunya and Zika, seem to be following similar trends as DENV and have renewed interest in monitoring and modelling arboviruses within mosquito vectors. Unfortunately, current commercially available detection methods are designed for the diagnosis of DENV in humans or are too expensive and complex for sustainable monitoring...
November 28, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29163434/neglected-australian-arboviruses-and-undifferentiated-febrile-illness-addressing-public-health-challenges-arising-from-the-developing-northern-australia-government-policy
#16
Narayan Gyawali, Richard S Bradbury, John G Aaskov, Andrew W Taylor-Robinson
The Australian Government is currently promoting the development of Northern Australia, with an associated increase in the local population. Consequent to this is the public health threat posed by heightened human exposure to many previously neglected arboviruses that are indigenous to the region. This initiative to support economic activity in the tropical north of the continent is leading to the accelerated expansion of an infection-naïve human population into hitherto un-encountered ecosystems inhabited by reservoir animals and vectors for these arboviruses...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29145452/behavioral-climatic-and-environmental-risk-factors-for-zika-and-chikungunya-virus-infections-in-rio-de-janeiro-brazil-2015-16
#17
Trevon L Fuller, Guilherme Calvet, Camila Genaro Estevam, Jussara Rafael Angelo, Gbenga J Abiodun, Umme-Aiman Halai, Bianca De Santis, Patricia Carvalho Sequeira, Eliane Machado Araujo, Simone Alves Sampaio, Marco Cesar Lima de Mendonça, Allison Fabri, Rita Maria Ribeiro, Ryan Harrigan, Thomas B Smith, Claudia Raja Gabaglia, Patrícia Brasil, Ana Maria Bispo de Filippis, Karin Nielsen-Saines
The burden of arboviruses in the Americas is high and may result in long-term sequelae with infants disabled by Zika virus infection (ZIKV) and arthritis caused by infection with Chikungunya virus (CHIKV). We aimed to identify environmental drivers of arbovirus epidemics to predict where the next epidemics will occur and prioritize municipalities for vector control and eventual vaccination. We screened sera and urine samples (n = 10,459) from residents of 48 municipalities in the state of Rio de Janeiro for CHIKV, dengue virus (DENV), and ZIKV by molecular PCR diagnostics...
2017: PloS One
https://www.readbyqxmd.com/read/29145400/zika-virus-an-updated-review-of-competent-or-naturally-infected-mosquitoes
#18
REVIEW
Yanouk Epelboin, Stanislas Talaga, Loïc Epelboin, Isabelle Dusfour
Zika virus (ZIKV) is an arthropod-borne virus (arbovirus) that recently caused outbreaks in the Americas. Over the past 60 years, this virus has been observed circulating among African, Asian, and Pacific Island populations, but little attention has been paid by the scientific community until the discovery that large-scale urban ZIKV outbreaks were associated with neurological complications such as microcephaly and several other neurological malformations in fetuses and newborns. This paper is a systematic review intended to list all mosquito species studied for ZIKV infection or for their vector competence...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29130262/zika-contraception-and-the-non-identity-problem
#19
Keyur Doolabh, Lucius Caviola, Julian Savulescu, Michael Selgelid, Dominic Jc Wilkinson
The 2016 outbreak of the Zika arbovirus was associated with large numbers of cases of the newly-recognised Congenital Zika Syndrome (CZS). This novel teratogenic epidemic raises significant ethical and practical issues. Many of these arise from strategies used to avoid cases of CZS, with contraception in particular being one proposed strategy that is atypical in epidemic control. Using contraception to reduce the burden of CZS has an ethical complication: interventions that impact the timing of conception alter which people will exist in the future...
December 2017: Developing World Bioethics
https://www.readbyqxmd.com/read/29123142/genomic-and-epidemiological-characterisation-of-a-dengue-virus-outbreak-among-blood-donors-in-brazil
#20
Nuno R Faria, Antonio Charlys da Costa, José Lourenço, Paula Loureiro, Maria Esther Lopes, Roberto Ribeiro, Cecilia Salete Alencar, Moritz U G Kraemer, Christian J Villabona-Arenas, Chieh-Hsi Wu, Julien Thézé, Kamran Khan, Shannon E Brent, Camila Romano, Eric Delwart, Brian Custer, Michael P Busch, Oliver G Pybus, Ester C Sabino
Outbreaks caused by Dengue, Zika and Chikungunya viruses can spread rapidly in immunologically naïve populations. By analysing 92 newly generated viral genome sequences from blood donors and recipients, we assess the dynamics of dengue virus serotype 4 during the 2012 outbreak in Rio de Janeiro. Phylogenetic analysis indicates that the outbreak was caused by genotype II, although two isolates of genotype I were also detected for the first time in Rio de Janeiro. Evolutionary analysis and modelling estimates are congruent, indicating a reproduction number above 1 between January and June, and at least two thirds of infections being unnoticed...
November 9, 2017: Scientific Reports
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