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Zika infections and complications

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https://www.readbyqxmd.com/read/29315224/the-zika-virus-epidemic-in-brazil-from-discovery-to-future-implications
#1
REVIEW
Rachel Lowe, Christovam Barcellos, Patrícia Brasil, Oswaldo G Cruz, Nildimar Alves Honório, Hannah Kuper, Marilia Sá Carvalho
The first confirmed case of Zika virus infection in the Americas was reported in Northeast Brazil in May 2015, although phylogenetic studies indicate virus introduction as early as 2013. Zika rapidly spread across Brazil and to more than 50 other countries and territories on the American continent. The Aedesaegypti mosquito is thought to be the principal vector responsible for the widespread transmission of the virus. However, sexual transmission has also been reported. The explosively emerging epidemic has had diverse impacts on population health, coinciding with cases of Guillain-Barré Syndrome and an unexpected epidemic of newborns with microcephaly and other neurological impairments...
January 9, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29305462/type-i-interferons-instigate-fetal-demise-after-zika-virus-infection
#2
Laura J Yockey, Kellie A Jurado, Nitin Arora, Alon Millet, Tasfia Rakib, Kristin M Milano, Andrew K Hastings, Erol Fikrig, Yong Kong, Tamas L Horvath, Scott Weatherbee, Harvey J Kliman, Carolyn B Coyne, Akiko Iwasaki
Zika virus (ZIKV) infection during pregnancy is associated with adverse fetal outcomes, including microcephaly, growth restriction, and fetal demise. Type I interferons (IFNs) are essential for host resistance against ZIKV, and IFN-α/β receptor (IFNAR)-deficient mice are highly susceptible to ZIKV infection. Severe fetal growth restriction with placental damage and fetal resorption is observed after ZIKV infection of type I IFN receptor knockout (Ifnar1-/-) dams mated with wild-type sires, resulting in fetuses with functional type I IFN signaling...
January 5, 2018: Science Immunology
https://www.readbyqxmd.com/read/29302646/hospital-and-community-based-surveillance-of-zika-and-dengue-viruses-in-indonesia
#3
Nasronudin Suharto, Muhammad Amin, Diah Puspita Rini, Achmad Chusnu Romdhoni, Purwaningsih Zulfayandi Pawanis, Muhammad Syamsul Hidayat
Background: Zika virus remained silent for few decades after its first recognition in 1947. Recently, Zika drew global attention due to the outbreak in Pacific island and Latin Americas. The concern was escalating given the shared vector of Zika and dengue with possible deleterious complications. Surabaya as one of the largest cities in Indonesia with high mobility of people is endemic to dengue. This study was aimed to detect Zika infection during dengue outbreaks in Surabaya. Materials and Methods: This was a surveillance study involving patients visiting 4 public hospitals and 8 primary health care centres (PHCs)...
2018: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29296705/zika-and-chikungunya-virus-infections-in-hematopoietic-stem-cell-transplant-recipients-and-oncohematological-patients
#4
Clarisse Martins Machado, Bárbara Brito de Souza Pereira, Alvina Clara Felix, Maria Carolina Oliveira, Luiz Guilherme Darrigo, Mair Pedro de Souza, Eduardo José de Alencar Paton, Fabia Neves, Vergilio Rensi Colturato, Belinda Pinto Simoes
Aedes mosquitoes are well adapted in domestic environments and widespread in tropical regions. Since 2015, Brazil has been experiencing a triple epidemic of dengue (DENV), chikungunya (CHKV), and Zika (ZIKV) viruses. The last 2 viruses are likely following the path of DENV, which has been endemic in most parts of the country since the 1980s. Given this triple epidemic, we proposed a prospective and collaborative study to assess the prevalence, morbidity, and mortality of DENV, CHKV, and ZIKV infections in hematopoietic stem cell transplant (HSCT) recipients and oncohematological patients...
April 11, 2017: Blood Advances
https://www.readbyqxmd.com/read/29288700/erythrosin-b-is-a-potent-and-broad-spectrum-orthosteric-inhibitor-of-the-flavivirus-ns2b-ns3-protease
#5
Zhong Li, Srilatha Sakamuru, Ruili Huang, Matthew Brecher, Cheri A Koetzner, Jing Zhang, Haiying Chen, Cheng-Feng Qin, Qing-Yu Zhang, Jia Zhou, Laura D Kramer, Menghang Xia, Hongmin Li
Many flaviviruses, such as Zika virus (ZIKV), Dengue virus (DENV1-4) and yellow fever virus (YFV), are significant human pathogens. Infection with ZIKV, an emerging mosquito-borne flavivirus, is associated with increased risk of microcephaly in newborns and Guillain-Barré syndrome and other complications in adults. Currently, specific therapy does not exist for any flavivirus infections. In this study, we found that erythrosin B, an FDA-approved food additive, is a potent inhibitor for flaviviruses, including ZIKV and DENV2...
December 27, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29276699/zika-virus-an-emerging-global-health-threat
#6
REVIEW
Rahul Mittal, Desiree Nguyen, Luca H Debs, Amit P Patel, George Liu, Vasanti M Jhaveri, Sae-In S Kay, Jeenu Mittal, Emmalee S Bandstra, Ramzi T Younis, Prem Chapagain, Dushyantha T Jayaweera, Xue Zhong Liu
Zika virus (ZIKV) is an emerging healthcare threat. The presence of the mosquito Aedes species across South and Central America in combination with complementary climates have incited an epidemic of locally transmitted cases of ZIKV infection in Brazil. As one of the most significant current public health concerns in the Americas, ZIKV epidemic has been a cause of alarm due to its known and unknown complications. At this point, there has been a clear association between ZIKV infection and severe clinical manifestations in both adults and neonates, including but not limited to neurological deficits such as Guillain-Barré syndrome (GBS) and microcephaly, respectively...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29273403/zika-virus-an-emerging-infectious-disease-with-serious-perinatal-and-neurologic-complications
#7
Thomas B Casale, Michael N Teng, Jamie P Morano, Thomas Unnasch, Charles J Lockwood
Zika virus (ZIKV) is a flavivirus that is primarily transmitted by Aedes aegypti, the mosquito vector also important in the transmission of the flaviviruses responsible for dengue fever, yellow fever and chikungunya. Due to occurrence in the same geographic regions, serological cross-reactivity, and similar, albeit often less severe clinical manifestations as dengue and chikungunya infections, ZIKV infection likely went undetected and/or misdiagnosed for many years. ZIKV is somewhat unique among flaviviruses in its ability to also be transmitted via sexual contact, non-sexual body fluids and perinatally...
December 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29195504/blinded-by-zika-a-missed-hiv-diagnosis-that-resulted-in-optic-neuropathy-and-blindness-a-case-report
#8
Tiffany Hirschel, Heimo Steffen, Victor Pecoul, Alexandra Calmy
BACKGROUND: Typical symptoms of an acute human immunodeficiency virus (HIV) infections like fever and rash are not specific and can be caused by a multitude of other pathogens, such as Zika or rickettsiosis. Up to 30% of primary HIV infection do not present with the typical flu-like symptoms and thus represent a diagnostic challenge. In this report, we describe a rare case of optic neuropathy as the initial presentation of primary HIV infection, which resulted in irreversible blindness...
December 1, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29176498/zika-clinical-updates-implications-for-pediatrics
#9
Kristina Adachi, Karin Nielsen-Saines
PURPOSE OF REVIEW: Zika virus (ZIKV), a mosquito-borne flavivirus, has gained recognition over the past few years as an important new cause of congenital infection. As a result, it is critical that pediatricians understand its epidemiology, clinical presentation, clinical sequelae, and management. RECENT FINDINGS: The recent ZIKV epidemiology, clinical presentation of acute infection in children and complications, perinatal infection, and congenital infection will be summarized in this ZIKV review...
November 25, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/29158907/chikungunya-outbreak-in-delhi-india-2016-report-on-coinfection-status-and-comorbid-conditions-in-patients
#10
N Kaur, J Jain, A Kumar, M Narang, M K Zakaria, A Marcello, D Kumar, R Gaind, S Sunil
Chikungunya fever is a major public health issue in India affecting billions. After 2010, the infection was in a decline until in 2016, when a massive outbreak affected the country. In this report, we present serologic and molecular investigations of 600 patient samples for chikungunya and dengue viruses along with clinical and comorbidity features. We recruited 600 patients during this outbreak and evaluated them for chikungunya and dengue virus antibodies and virus RNA through IgM, NS1 antigen and quantitative real-time PCR (qPCR)...
November 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/29158604/antiviral-cd8-t-cells-induce-zika-virus-associated-paralysis-in-mice
#11
Kellie A Jurado, Laura J Yockey, Patrick W Wong, Sarah Lee, Anita J Huttner, Akiko Iwasaki
Zika virus (ZIKV) is an emerging, mosquito-borne RNA virus. The rapid spread of ZIKV within the Americas has unveiled microcephaly 1 and Guillain-Barré syndrome 2,3 as ZIKV-associated neurological complications. Recent reports have also indicated other neurological manifestations to be associated with ZIKV, including myelitis 4 , meningoencephalitis 5 and fatal encephalitis 6 . Here, we investigate the neuropathogenesis of ZIKV infection in type I interferon receptor IFNAR knockout (Ifnar1 -/- ) mice, an infection model that exhibits high viral burden within the central nervous system...
November 20, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/29145400/zika-virus-an-updated-review-of-competent-or-naturally-infected-mosquitoes
#12
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/29113627/the-proportion-of-asymptomatic-infections-and-spectrum-of-disease-among-pregnant-women-infected-by-zika-virus-systematic-monitoring-in-french-guiana-2016
#13
Claude Flamand, Camille Fritzell, Séverine Matheus, Maryvonne Dueymes, Gabriel Carles, Anne Favre, Antoine Enfissi, Antoine Adde, Magalie Demar, Mirdad Kazanji, Simon Cauchemez, Dominique Rousset
Zika virus (ZIKV) infection has been associated with complications during pregnancy. Although the presence of symptoms might be a risk factor for complication, the proportion of ZIKV-infected pregnant women with symptoms remains unknown. Following the emergence of ZIKV in French Guiana, all pregnancies in the territory were monitored by RT-PCR and/or detection of ZIKV antibodies. Follow-up data collected during pregnancy monitoring interviews were analysed from 1 February to 1 June 2016. We enrolled 3,050 pregnant women aged 14-48 years and 573 (19%) had laboratory-confirmed ZIKV infection...
November 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/29108750/new-spectrum-of-the-neurologic-consequences-of-zika
#14
EDITORIAL
Marco T Medina, Marco Medina-Montoya
Zika virus infection represents a new neuropathological agent with association to a wide spectrum of neurological complications: a) Congenital Zika Syndrome by affecting the neural stem cells of the human fetal brain; b) Guillain-Barré Syndrome by an autoimmune response against peripheral myelin and/or axonal components or probable direct inflammatory reaction; c) Encephalitis/meningoencephalitis and myelitis by a direct viral inflammatory process on the central nervous system; d) Sensory neuropathy by infecting directly the peripheral neurons and causing substantial cell death and pathogenic transcriptional dysregulation; e) Acute Disseminated Encephalomyelitis and optic neuropathy; f) Seizures and Epilepsy and g) childhood arterial ischemic stroke by probable inflammatory reaction and endothelial injury...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29093104/ability-to-serologically-confirm-recent-zika-virus-infection-in-areas-with-varying-past-incidence-of-dengue-virus-infection-in-the-united-states-and-u-s-territories-in-2016
#15
Nicole P Lindsey, J Erin Staples, Krista Powell, Ingrid B Rabe, Marc Fischer, Ann M Powers, Olga I Kosoy, Eric C Mossel, Jorge L Munoz-Jordan, Manuela Beltran, W Thane Hancock, Karrie-Ann E Toews, Esther M Ellis, Brett R Ellis, Amanda J Panella, Alison J Basile, Amanda E Calvert, Janeen Laven, Christin H Goodman, Carolyn V Gould, Stacey W Martin, Jennifer D Thomas, Julie Villanueva, Mary L Mataia, Rebecca Sciulli, Remedios Gose, A Christian Whelen, Susan L Hills
Cross-reactivity within flavivirus antibody assays, produced by shared epitopes in the envelope proteins, can complicate the serological diagnosis of Zika virus (ZIKAV) infection. We assessed the utility of the plaque reduction neutralization test (PRNT) to confirm recent ZIKAV infections and rule out misleading positive immunoglobulin M (IgM) results in areas with various levels of past dengue virus (DENV) infection incidence. We reviewed PRNT results of sera collected for diagnosis of ZIKAV infection from 1 January through 31 August 2016 with positive ZIKAV IgM results, and ZIKAV and DENV PRNTs were performed...
January 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29050846/zika-virus-what-where-from-and-where-to
#16
REVIEW
Kerri Basile, Jen Kok, Dominic E Dwyer
The significance of Zika virus as a clinically significant flavivirus has previously been under-recognised, until extensive outbreaks in Yap in 2007, French Polynesia in 2013 and the Americas since 2015. Although Zika virus infection is commonly asymptomatic or mild, emerging evidence suggests a strong link to microcephaly in babies and Guillain-Barré syndrome in adults. This article reviews the epidemiology, geographic distribution, basic virology, transmission, clinical presentation, potential complications, laboratory diagnosis, treatment and prevention of Zika virus infection...
December 2017: Pathology
https://www.readbyqxmd.com/read/29048558/modeling-neuro-immune-interactions-during-zika-virus-infection
#17
Pinar Mesci, Angela Macia, Christopher N LaRock, Leon Tejwani, Isabella R Fernandes, Nicole A Suarez, Paolo M de A Zanotto, Patricia C B Beltrão-Braga, Victor Nizet, Alysson R Muotri
Although Zika virus (ZIKV) infection is often asymptomatic, in some cases it can lead to birth defects in newborns or serious neurologic complications in adults. However, little is known about the interplay between immune and neural cells that could contribute to the ZIKV pathology. To understand the mechanisms at play during infection and the antiviral immune response, we focused on neural precursor cells (NPC)-microglia interactions. Our data indicate that human microglia infected with the current circulating Brazilian ZIKV induces a similar pro-inflammatory response found in ZIKV-infected human tissues...
October 17, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29027743/generalized-pustular-psoriasis-triggered-by-zika-virus-infection
#18
A E Paniz Mondolfi, M Hernandez Perez, G Blohm, M Marquez, A Mogollon Mendoza, C E Hernandez-Pereira, M A Escalona, A Lodeiro Colatosti, J Rothe DeArocha, A J Rodriguez Morales
Zika virus is an emerging arbovirus, which is expanding in epidemic proportions through tropical and subtropical areas of the world. Although Zika is linked to a number of congenital and neurological complications, there is scarce knowledge on the impact of ZIKV infection in human skin. We report the case of a 68-year old woman who presented with generalized pustular psoriasis after a preceding and otherwise uneventful episode of ZIKV infection. Based on recent experimental data on the biology of ZIKV infection in the cutaneous environment, we speculate that ZIKV may have directly triggered the development of generalized pustular psoriasis by stimulation of keratinocyte-derived mediators of inflammation and a polyfunctional T-cell driven immune reaction in the cutaneous milieu...
October 13, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29022864/reverse-genetic-system-genetically-stable-reporter-viruses-and-packaged-subgenomic-replicon-based-on-a-brazilian-zika-virus-isolate
#19
Margit Mutso, Sirle Saul, Kai Rausalu, Olga Susova, Eva Žusinaite, Suresh Mahalingam, Andres Merits
Zika virus (ZIKV, genus Flavivirus) has emerged as a major mosquito-transmitted human pathogen, with recent outbreaks associated with an increased incidence of neurological complications, particularly microcephaly and the Guillain-Barré syndrome. Because the virus has only very recently emerged as an important pathogen, research is being hampered by a lack of reliable molecular tools. Here we report an infectious cDNA (icDNA) clone for ZIKV isolate BeH819015 from Brazil, which was selected as representative of South American ZIKV isolated at early stages of the outbreak...
November 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29020159/distinguishing-secondary-dengue-virus-infection-from-zika-virus-infection-with-previous-dengue-by-a-combination-of-3-simple-serological-tests
#20
Wen-Yang Tsai, Han Ha Youn, Carlos Brites, Jih-Jin Tsai, Jasmine Tyson, Celia Pedroso, Jan Felix Drexler, Mars Stone, Graham Simmons, Michael P Busch, Marion Lanteri, Susan L Stramer, Angel Balmaseda, Eva Harris, Wei-Kung Wang
Background: The explosive spread of Zika virus (ZIKV) and associated microcephaly present an urgent need for sensitive and specific serodiagnostic tests, particularly for pregnant women in dengue virus (DENV)-endemic regions. Recent reports of enhanced ZIKV replication by dengue-immune sera have raised concerns about the role of previous DENV infection on the risk and severity of microcephaly and other ZIKV complications. Methods: Enzyme-linked immunosorbent assays (ELISAs) based on ZIKV and DENV nonstructural protein 1 (NS1) were established to test acute, convalescent phase, and post-convalescent phase serum/plasma samples from reverse-transcription polymerase chain reaction-confirmed cases including 20 primary ZIKV, 25 ZIKV with previous DENV, 58 secondary DENV, and 16 primary DENV1 infections...
November 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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