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Guillain–Barré zika

Ludovica Barbi, Antonio Victor Campos Coelho, Luiz Cláudio Arraes de Alencar, Sergio Crovella
Zika virus (ZIKV) is an emergent flavivirus transmitted mainly through Aedes spp. mosquitoes that is posing challenge to healthcare services in countries experiencing an outbreak. Usually ZIKV infection is mild, but in some cases it has been reported to progress into neurological diseases such as microcephaly in infants and Guillain-Barré syndrome (GBS) in adults. GBS is a debilitating autoimmune disorder that affects peripheral nerves. Since ZIKV caused massive outbreaks in South America in the past few years, we aimed to systematically review the literature and perform a meta-analysis to estimate the prevalence of GBS among ZIKV-infected individuals...
March 12, 2018: Brazilian Journal of Infectious Diseases
Andrea Cristine Koishi, Andréia Akemi Suzukawa, Camila Zanluca, Daria Elena Camacho, Guillermo Comach, Claudia Nunes Duarte Dos Santos
Zika virus (ZIKV) is an emerging arbovirus belonging to the genus flavivirus that comprises other important public health viruses, such as dengue (DENV) and yellow fever (YFV). In general, ZIKV infection is a self-limiting disease, however cases of Guillain-Barré syndrome and congenital brain abnormalities in newborn infants have been reported. Diagnosing ZIKV infection remains a challenge, as viral RNA detection is only applicable until a few days after the onset of symptoms. After that, serological tests must be applied, and, as expected, high cross-reactivity between ZIKV and other flavivirus serology is observed...
March 15, 2018: PLoS Neglected Tropical Diseases
Shupeng Dong, Qiming Liang
An infection by Zika virus (ZIKV), a mosquito-borne flavivirus, broke out in South American regions in 2015, and recently showed a tendency of spreading to North America and even worldwide. ZIKV was first detected in 1947 and only 14 human infection cases were reported until 2007. This virus was previously observed to cause only mild flu-like symptoms. However, recent ZIKV infections might be responsible for the increasing cases of neurological disorders such as Guillain-Barré syndrome and congenital defects, including newborn microcephaly...
March 14, 2018: Virologica Sinica
C Talero-Gutiérrez, A Rivera-Molina, C Pérez-Pavajeau, I Ossa-Ospina, C Santos-García, M C Rojas-Anaya, A de-la-Torre
Zika virus (ZIKV) infection is an emergent worldwide public health problem. Historically, 84 countries have reported vector-borne ZIKV transmission, 61 of which report on-going transmission. It is a Flavivirus transmitted through arthropods belonging to the Aedes genus. Since 2015, ZIKV infections have increased dramatically; with 1.3 million people infected during 2015 in Brazil alone. This paper's objective is to highlight the conjectural epidemiological points of the virus' dissemination. The digital archives Pubmed, MEDLINE, EMBASE and Cochrane were searched for papers that assessed aspects of ZIKV transmission and epidemiology...
March 14, 2018: Epidemiology and Infection
Abigail Culshaw, Juthathip Mongkolsapaya, Gavin Screaton
Zika virus (ZIKV) was initially thought to cause only mild, self-limiting symptoms. However, recent outbreaks have been associated with the autoimmune disease Guillain-Barré syndrome and causally linked to a congenital malformation known as microcephaly. This has led to an urgent need for a safe and effective vaccine. A comprehensive understanding of the immunology of ZIKV infection is required to aid in the design of such a vaccine. Whilst details of both innate and adaptive immune responses to ZIKV are emerging, further research is needed...
2018: F1000Research
Zhenjian He, Jiahui Chen, Shu An, Xinhuai Dong, Jianchen Yu, Shihao Zhang, Yun Wu, Ge Li, Yu Zhang, Jueheng Wu, Xun Zhu, Mengfeng Li
Zika virus (ZIKV) is a mosquito-borne virus that has been identified as a cause of several severe disease manifestations, including congenital microcephaly and Guillain-Barré syndrome, meningoencephalitis and myelitis. Previous studies showed that ZIKV-infected patients exhibited elevated plasma levels of interleukin-1β (IL-1β), indicating that ZIKV may activate inflammasomes. However, the molecular basis for its viral pathogenesis remains poorly understood. In this current study, we found that ZIKV infection caused severe inflammatory pathological changes and promoted IL-1β production in vitro as well as in vivo...
March 6, 2018: Journal of Infectious Diseases
Victoria Hall, William L Walker, Nicole P Lindsey, Jennifer A Lehman, Jonathan Kolsin, Kimberly Landry, Ingrid B Rabe, Susan L Hills, Marc Fischer, J Erin Staples, Carolyn V Gould, Stacey W Martin
Zika virus is a flavivirus primarily transmitted to humans by Aedes aegypti mosquitoes (1). Zika virus infections also have been documented through intrauterine transmission resulting in congenital infection; intrapartum transmission from a viremic mother to her newborn; sexual transmission; blood transfusion; and laboratory exposure (1-3). Most Zika virus infections are asymptomatic or result in mild clinical illness, characterized by acute onset of fever, maculopapular rash, arthralgia, or nonpurulent conjunctivitis; Guillain-Barré syndrome, meningoencephalitis, and severe thrombocytopenia rarely have been associated with Zika virus infection (1)...
March 9, 2018: MMWR. Morbidity and Mortality Weekly Report
Raj K Singh, Kuldeep Dhama, Rekha Khandia, Ashok Munjal, Kumaragurubaran Karthik, Ruchi Tiwari, Sandip Chakraborty, Yashpal S Malik, Rubén Bueno-Marí
Zika virus (ZIKV) is the most recent intruder that acquired the status of global threat creating panic and frightening situation to public owing to its rapid spread, attaining higher virulence and causing complex clinical manifestations including microcephaly in newborns and Guillain Barré Syndrome. Alike other flaviviruses, the principal mode of ZIKV transmission is by mosquitoes. Advances in research have provided reliable diagnostics for detecting ZIKV infection, while several drug/therapeutic targets and vaccine candidates have been identified recently...
2018: Frontiers in Microbiology
Gabriel Gonzalez-Escobar, Anne Marie Valadere, Rosmond Adams, Karen Polson-Edwards, Avery Q J Hinds, Akenath Misir, C James Hospedales
An emerging mosquito-borne flavivirus, Zika virus (ZIKV) is a significant public health concern because of the syndromes associated with the infection. In addition, ZIKV is considered a major problem due to large-scale spread of the disease and the possible clinical complications for the central nervous system, especially Guillain-Barré syndrome (GBS) and microcephaly. Since the introduction of ZIKV in the Caribbean, molecular detection of the viral RNA has been utilized as a more specific and sensitive approach to demonstrating acute infection...
February 19, 2018: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Yogy Simanjuntak, Jian-Jong Liang, Si-Yu Chen, Jin-Kun Li, Yi-Ling Lee, Han-Chung Wu, Yi-Ling Lin
Despite the low case fatality, Zika virus (ZIKV) infection has been associated with microcephaly in infants and Guillain-Barré syndrome. Antiviral and vaccine developments against ZIKV are still ongoing; therefore, in the meantime, preventing the disease transmission is critical. Primarily transmitted by Aedes species mosquitoes, ZIKV also can be sexually transmitted. We used AG129 mice lacking interferon-α/β and -γ receptors to study the testicular pathogenesis and sexual transmission of ZIKV. Infection of ZIKV progressively damaged mouse testes, increased testicular oxidative stress as indicated by the levels of reactive oxygen species, nitric oxide, glutathione peroxidase 4, spermatogenesis-associated-18 homolog in sperm and pro-inflammatory cytokines including IL-1β, IL-6, and G-CSF...
February 2018: PLoS Pathogens
Veerendra Koppolu, T Shantha Raju
Zika virus (ZIKV) is an arbovirus transmitted mainly by mosquitos of Aedes species. The virus has emerged in recent years and spread throughout North and South Americas. The recent outbreak of ZIKV started in Brazil (2015) has resulted in infections surpassing a million mark. Contrary to the previous beliefs that Zika causes mildly symptomatic infections fever, headache, rash, arthralgia, and conjunctivitis, the recent outbreak associated ZIKV to serious neurological complications such as microcephaly, Guillain-Barré syndrome, and eye infections...
February 13, 2018: Journal of Neurovirology
Pia D M MacDonald, E Wayne Holden
Because Zika is a newly emerging infectious disease with little previous information known about it, there are many epidemiologic and clinical questions. The complexity of providing care to those who are at risk for infection or are already infected with Zika in this evidence-scarce environment cannot be understated. In this article, we provide an overview of the Zika virus (ZIKV) in the context of public health and pediatric health care. A broad public health focus is used to provide relevant information for addressing important questions about the epidemic and to facilitate communication with patients, parents, and caregivers within the current information environment...
February 2018: Pediatrics
Haruki Koike
Recent studies revealed an association between Zika virus infection and a variety of neurological disorders, including microcephaly, meningoencephalitis, myelitis, and Guillain-Barré syndrome (GBS). Following the first report of a patient diagnosed with GBS after Zika virus infection in December 2013, the number of GBS patients significantly increased in endemic countries, such as French-Polynesia and Latin American countries. Electrophysiological studies suggested that patients suffering from GBS associated with Zika virus infection manifest acute inflammatory demyelinating polyneuropathy (AIDP), rather than acute motor axonal neuropathy (AMAN)...
February 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
Ravi Mehta, Cristiane Nascimento Soares, Raquel Medialdea-Carrera, Mark Ellul, Marcus Tulius Texeira da Silva, Anna Rosala-Hallas, Marcia Rodrigues Jardim, Girvan Burnside, Luciana Pamplona, Maneesh Bhojak, Radhika Manohar, Gabriel Amorelli Medeiros da Silva, Marcus Vinicius Adriano, Patricia Brasil, Rita Maria Ribeiro Nogueira, Carolina Cardoso Dos Santos, Lance Turtle, Patricia Carvalho de Sequeira, David W Brown, Michael J Griffiths, Ana Maria Bispo de Filippis, Tom Solomon
BACKGROUND: During 2015-16 Brazil experienced the largest epidemic of Zika virus ever reported. This arthropod-borne virus (arbovirus) has been linked to Guillain-Barré syndrome (GBS) in adults but other neurological associations are uncertain. Chikungunya virus has caused outbreaks in Brazil since 2014 but associated neurological disease has rarely been reported here. We investigated adults with acute neurological disorders for Zika, chikungunya and dengue, another arbovirus circulating in Brazil...
February 12, 2018: PLoS Neglected Tropical Diseases
Ji-Ae Kim, Rak-Kyun Seong, Mukesh Kumar, Ok Sarah Shin
Zika virus (ZIKV) has recently emerged as a new public health threat. ZIKV infections have caused a wide spectrum of neurological diseases, such as Guillain-Barré syndrome, myelitis, meningoencephalitis, and congenital microcephaly. No effective therapies currently exist for treating patients infected with ZIKV. Herein, we evaluated the anti-viral activity of favipiravir (T-705) and ribavirin against Asian and African strains of ZIKV using different cell models, including human neuronal progenitor cells (hNPCs), human dermal fibroblasts (HDFs), human lung adenocarcinoma cells (A549) and Vero cells...
February 9, 2018: Viruses
Chatrin Chatrin, Sandeep K Talapatra, Bruno Canard, Frank Kozielski
Zika virus, a flavivirus like Dengue and West Nile viruses, poses a significant risk as a pathogen in the category of emerging infectious diseases. Zika infections typically cause nonspecific, mild symptoms, but can also manifest as a neurological disorder like Guillain-Barré syndrome. Infection in pregnant women is linked to microcephaly in newborn infants. The methyltransferase domain of the non-structural protein 5 is responsible for two sequential methylations of the 5'-RNA cap. This is crucial for genome stability, efficient translation, and escape from the host immune response...
January 9, 2018: Oncotarget
Gregory A Poland, Richard B Kennedy, Inna G Ovsyannikova, Ricardo Palacios, Paulo Lee Ho, Jorge Kalil
Zika virus is an emerging pathogen of substantial public health concern to human beings. Although most infections are asymptomatic or present with benign, self-limited symptoms, a small percentage of patients have complications, such as congenital anomalies in the developing fetus of pregnant women infected with the virus and neurological complications (eg, Guillain-Barré syndrome). To date, there is no vaccine, antiviral drug, or other modality available to prevent or treat Zika virus infection. In this Review, we examine vaccine development efforts for Zika virus to date and research gaps in the development of candidate vaccines against Zika virus...
January 25, 2018: Lancet Infectious Diseases
M S Mustafa, R Ramasethu
Zika virus (ZIKV) infection has recently affected 4 million people across the globe. The World Health Organization has declared Zika a "Public Health Emergency of International Concern". The disease is caused by an arbovirus and transmitted by Aedes mosquitoes. Zika has followed a pattern already set in by Dengue and Chikungunya viruses. The virus exists in sylvatic form with spillovers to humans. The present outbreak in Brazil started in May 2015 and spread rapidly to Latin America and the Caribbean. The rapid spread is due to availability of non-immune population...
January 2018: Medical Journal, Armed Forces India
Takaaki Koma, Veljko Veljkovic, Danielle E Anderson, Lin-Fa Wang, Shannan L Rossi, Chao Shan, Pei-Yong Shi, David W Beasley, Natalya Bukreyeva, Jeanon N Smith, Steven Hallam, Cheng Huang, Veronika von Messling, Slobodan Paessler
Zika virus (ZIKV) causes mostly asymptomatic infection or mild febrile illness. However, with an increasing number of patients, various clinical features such as microcephaly, Guillain-Barré syndrome and thrombocytopenia have also been reported. To determine which host factors are related to pathogenesis, the E protein of ZIKV was analyzed with the Informational Spectrum Method, which identifies common information encoded by primary structures of the virus and the respective host protein. The data showed that the ZIKV E protein and the complement component C1q cross-spectra are characterized by a single dominant peak at the frequency F = 0...
January 30, 2018: Scientific Reports
Jian Chen, Yi-Feng Yang, Yu Yang, Peng Zou, Jun Chen, Yongquan He, Sai-Lan Shui, Yan-Ru Cui, Ru Bai, Ya-Jun Liang, Yunwen Hu, Biao Jiang, Lu Lu, Xiaoyan Zhang, Jia Liu, Jianqing Xu
Zika virus (ZIKV) is associated with neonatal microcephaly and Guillain-Barré syndrome1,2. While progress has been made in understanding the causal link between ZIKV infection and microcephaly3-9, the life cycle and pathogenesis of ZIKV are less well understood. In particular, there are conflicting reports on the role of AXL, a TAM family kinase receptor that was initially described as the entry receptor for ZIKV10-22. Here, we show that while genetic ablation of AXL protected primary human astrocytes and astrocytoma cell lines from ZIKV infection, AXL knockout did not block the entry of ZIKV...
January 29, 2018: Nature Microbiology
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