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https://www.readbyqxmd.com/read/27913754/neurological-manifestations-in-children-with-dengue-fever-an-indian-perspective
#1
Archan Sil, Tamoghna Biswas, Moumita Samanta, Mithun Chandra Konar, Arun Kumar De, Jasodhara Chaudhuri
Ours was a descriptive observational cross-sectional study carried out in a tertiary care hospital in eastern India over a period of one year to study the profile of neurological involvement in paediatric dengue patients. Of 71 laboratory-confirmed cases, 20 (28.17%) had neurological involvement. Common forms observed were acute encephalopathy (40%), encephalitis (30%), pure motor weakness (15%), transverse myelitis (5%), acute disseminated encephalomyelitis (5%) and Guillain-Barré syndrome (5%). The dengue IgM antibody could be detected in the cerebrospinal fluid of only two patients with encephalitis...
December 2, 2016: Tropical Doctor
https://www.readbyqxmd.com/read/27909576/zika-antiviral-chemotherapy-identification-of-drugs-and-promising-starting-points-for-drug-discovery-from-an-fda-approved-library
#2
Bruno S Pascoalino, Gilles Courtemanche, Marli T Cordeiro, Laura H V G Gil, Lucio Freitas-Junior
Background The recent epidemics of Zika virus (ZIKV) implicated it as the cause of serious and potentially lethal congenital conditions such microcephaly and other central nervous system defects, as well as the development of the Guillain-Barré syndrome in otherwise healthy patients. Recent findings showed that anti-Dengue antibodies are capable of amplifying ZIKV infection by a mechanism similar to antibody-dependent enhancement, increasing the severity of the disease. This scenario becomes potentially catastrophic when the global burden of Dengue and the advent of the newly approved anti-Dengue vaccines in the near future are taken into account...
2016: F1000Research
https://www.readbyqxmd.com/read/27902502/zika-virus-and-patient-blood-management
#3
Lawrence T Goodnough, Marisa B Marques
Sporadic Zika virus infections had only occurred in Africa and Asia until an outbreak in Micronesia (Oceania) in 2007. In 2013 to 2014, several outer Pacific Islands reported local outbreaks. Soon thereafter, the virus was likely introduced in Brazil from competing athletes from French Polynesia and other countries that participated in a competition there. Transmission is thought to have occurred through mosquito bites and spread to the immunologically naive population. Being also a flavivirus, the Zika virus is transmitted by the Aedes mosquito that is endemic in South and Central America that is also the vector of West Nile virus, dengue, and chikungunya...
November 29, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27882950/neutralization-mechanism-of-a-highly-potent-antibody-against-zika-virus
#4
Shuijun Zhang, Victor A Kostyuchenko, Thiam-Seng Ng, Xin-Ni Lim, Justin S G Ooi, Sebastian Lambert, Ter Yong Tan, Douglas G Widman, Jian Shi, Ralph S Baric, Shee-Mei Lok
The rapid spread of Zika virus (ZIKV), which causes microcephaly and Guillain-Barré syndrome, signals an urgency to identify therapeutics. Recent efforts to rescreen dengue virus human antibodies for ZIKV cross-neutralization activity showed antibody C10 as one of the most potent. To investigate the ability of the antibody to block fusion, we determined the cryoEM structures of the C10-ZIKV complex at pH levels mimicking the extracellular (pH8.0), early (pH6.5) and late endosomal (pH5.0) environments. The 4...
November 24, 2016: Nature Communications
https://www.readbyqxmd.com/read/27865425/zika-virus-infection-during-the-olympic-games-in-rio-a-fear-or-an-actual-risk
#5
M Díaz-Menéndez, E Trigo, F de la Calle-Prieto, M Arsuaga
The recent outbreak of Zika virus infection in Brazil has aroused considerable media interest due to its association with neurological malformations in children born from mothers infected by the virus and to its association with Guillain-Barre syndrome in adults. This relationship has led to the World Health Organisation declaring the current epidemic as a "Public Health Emergency of International Concern". Controversy also emerged on the advisability of delaying or changing the location of the Olympic and Paralympic Games, which were held in August at various locations in Brazil...
November 16, 2016: Revista Clínica Española
https://www.readbyqxmd.com/read/27862008/zika-virus-global-health-challenge-threat-and-current-situation
#6
REVIEW
Hafsa Aziz, Aadarash Zia, Amania Anwer, Muneeba Aziz, Shazia Fatima, Muhammad Faheem
ZIKV has emerged as grave global health issue in the past few years. ZIKV was firstly isolated in 1947 from a rhesus sentinel monkey in the Zika forest in Uganda. It is usually transmitted by the bite of infected mosquitoes and infects skin fibroblasts, skin keratinocytes etc. ZIKV until now was under reported because of its clinical similarity with the dengue and chikungunya. It usually spread through the course of the sylvatic cycle. In this cycle, the virus or pathogen lifespan is spent between the wild animal and vectors...
November 10, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27842986/investigation-of-a-guillain-barr%C3%A3-syndrome-cluster-in-the-republic-of-fiji
#7
Daniel M Pastula, Aalisha Sahu Khan, Tyler M Sharp, Viema L Biaukula, Taina K Naivalu, Eric Rafai, Ermias Belay, J Erin Staples, Marc Fischer, Olga I Kosoy, Janeen J Laven, Elizabeth J Bennett, Adam W J Jenney, Ravi Narayan Naidu, Robert S Lanciotti, Renee L Galloway, Eric J Nilles, James J Sejvar, Mike Kama
BACKGROUND: In 2014, we investigated a cluster of Guillain-Barre syndrome (GBS) in Fiji that occurred during a dengue epidemic. We designed a case-control study to determine the etiology. METHODS: Cases were patients meeting Brighton Collaboration criteria for GBS with onset from February 2014 to May 2014. Controls were persons without symptoms of GBS who were matched by age group and location. We collected information on demographics and potential exposures. Serum samples were tested for evidence of recent arboviral or Leptospira spp...
September 1, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27759344/expanded-dengue
#8
REVIEW
D B Kadam, Sonali Salvi, Ajay Chandanwale
The World Health Organization (WHO) has coined the term expanded dengue to describe cases which do not fall into either dengue shock syndrome or dengue hemorrhagic fever. This has incorporated several atypical findings of dengue. Dengue virus has not been enlisted as a common etiological agent in several conditions like encephalitis, Guillain Barre syndrome. Moreover it is a great mimic of co-existing epidemics like Malaria, Chikungunya and Zika virus disease, which are also mosquito-borne diseases. The atypical manifestations noted in dengue can be mutisystemic and multifacetal...
July 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27746901/illustrating-and-homology-modeling-the-proteins-of-the-zika-virus
#9
Sean Ekins, John Liebler, Bruno J Neves, Warren G Lewis, Megan Coffee, Rachelle Bienstock, Christopher Southan, Carolina H Andrade
The Zika virus (ZIKV) is a flavivirus of the family Flaviviridae, which is similar to dengue virus, yellow fever and West Nile virus. Recent outbreaks in South America, Latin America, the Caribbean and in particular Brazil have led to concern for the spread of the disease and potential to cause Guillain-Barré syndrome and microcephaly. Although ZIKV has been known of for over 60 years there is very little in the way of knowledge of the virus with few publications and no crystal structures. No antivirals have been tested against it either in vitro or in vivo...
2016: F1000Research
https://www.readbyqxmd.com/read/27719988/epidemiology-of-zika-virus
#10
David S Younger
Zika virus is an arbovirus belonging to the Flaviviridae family known to cause mild clinical symptoms similar to those of dengue and chikungunya. Zika is transmitted by different species of Aedes mosquitoes. Nonhuman primates and possibly rodents play a role as reservoirs. Direct interhuman transmission has also been reported. Human cases have been reported in Africa and Asia, Easter Island, the insular Pacific region, and Brazil. Its clinical profile is that of a dengue-like febrile illness, but recently associated Guillain-Barre syndrome and microcephaly have appeared...
November 2016: Neurologic Clinics
https://www.readbyqxmd.com/read/27716242/zika-virus-on-a-spreading-spree-what-we-now-know-that-was-unknown-in-the-1950-s
#11
Rupsa Basu, Ebenezer Tumban
Zika virus (ZIKV) is a mosquito-borne flavivirus that is transmitted through the bite of Aedes spp mosquitoes and less predominantly, through sexual intercourse. Prior to 2007, ZIKV was associated with only sporadic human infections with minimal or no clinical manifestations. Recently the virus has caused disease outbreaks from the Pacific Islands, the Americas, and off the coast of West Africa with approximately 1.62 million people suspected to be infected in more than 60 countries around the globe. The recent ZIKV outbreaks have been associated with guillain-barré syndrome, congenital syndrome (microcephaly, congenital central nervous system anomalies), miscarriages, and even death...
October 6, 2016: Virology Journal
https://www.readbyqxmd.com/read/27705091/guillain-barr%C3%A3-syndrome-associated-with-zika-virus-infection-in-colombia
#12
Beatriz Parra, Jairo Lizarazo, Jorge A Jiménez-Arango, Andrés F Zea-Vera, Guillermo González-Manrique, José Vargas, Jorge A Angarita, Gonzalo Zuñiga, Reydmar Lopez-Gonzalez, Cindy L Beltran, Karen H Rizcala, Maria T Morales, Oscar Pacheco, Martha L Ospina, Anupama Kumar, David R Cornblath, Laura S Muñoz, Lyda Osorio, Paula Barreras, Carlos A Pardo
Background Zika virus (ZIKV) infection has been linked to the Guillain-Barré syndrome. From November 2015 through March 2016, clusters of cases of the Guillain-Barré syndrome were observed during the outbreak of ZIKV infection in Colombia. We characterized the clinical features of cases of Guillain-Barré syndrome in the context of this ZIKV infection outbreak and investigated their relationship with ZIKV infection. Methods A total of 68 patients with the Guillain-Barré syndrome at six Colombian hospitals were evaluated clinically, and virologic studies were completed for 42 of the patients...
October 20, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27676848/neurotropism-of-arboviruses-seen-by-a-physiatric-view-martiniquaises-experiences-through-epidemics-of-dengue-chikungunya-and-zika
#13
José-Luis Barnay, Andre Cabie, Sylvie Abel, Emilie Javelle, Odile Troisgros, Patrick René-Corail
Arboviruses cause very recurrent epidemics, the oldest Dengue, known especially outside the flu-like syndrome with high fever mainly impacting vulnerable populations, may be responsible for severe hemorrhagic fevers, but also a few cases of Guillain-Barré syndrome. In 2014, the French Antilles occurred an outbreak of Chikungunya, following that of the Reunion's outbreak. During this period have been described, the articular and musculo-squellettic lesions, responsible for loss of autonomy in populations already carriers of chronic inflammatory joint damage or mechanical, but also a heavy impact on the autonomy of elderly and frail people...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27601578/zika-virus-is-not-uniquely-stable-at-physiological-temperatures-compared-to-other-flaviviruses
#14
Leslie Goo, Kimberly A Dowd, Alexander R Y Smith, Rebecca S Pelc, Christina R DeMaso, Theodore C Pierson
UNLABELLED: Zika virus (ZIKV) is a flavivirus that has emerged as a global health threat due in part to its association with congenital abnormalities. Other globally relevant flaviviruses include dengue virus (DENV) and West Nile virus (WNV). High-resolution structures of ZIKV reveal many similarities to DENV and suggest some differences, including an extended glycan loop (D. Sirohi, Z. Chen, L. Sun, T. Klose, T. C. Pierson, et al., 352:467-470, 2016, http://dx.doi.org/10.1126/science...
2016: MBio
https://www.readbyqxmd.com/read/27588756/nonstructural-proteins-are-preferential-positive-selection-targets-in-zika-virus-and-related-flaviviruses
#15
Manuela Sironi, Diego Forni, Mario Clerici, Rachele Cagliani
The Flavivirus genus comprises several human pathogens such as dengue virus (DENV), Japanese encephalitis virus (JEV), and Zika virus (ZIKV). Although ZIKV usually causes mild symptoms, growing evidence is linking it to congenital birth defects and to increased risk of Guillain-Barré syndrome. ZIKV encodes a polyprotein that is processed to produce three structural and seven nonstructural (NS) proteins. We investigated the evolution of the viral polyprotein in ZIKV and in related flaviviruses (DENV, Spondweni virus, and Kedougou virus)...
September 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27584942/guillain-barr%C3%A3-syndrome-during-ongoing-zika-virus-transmission-puerto-rico-january-1-july-31-2016
#16
Emilio Dirlikov, Chelsea G Major, Marrielle Mayshack, Nicole Medina, Desiree Matos, Kyle R Ryff, Jomil Torres-Aponte, Rebecca Alkis, Jorge Munoz-Jordan, Candimar Colon-Sanchez, Jorge L Salinas, Daniel M Pastula, Myriam Garcia, Marangely Olivero Segarra, Graciela Malave, Dana L Thomas, Gloria M Rodríguez-Vega, Carlos A Luciano, James Sejvar, Tyler M Sharp, Brenda Rivera-Garcia
Guillain-Barré syndrome (GBS) is a postinfectious autoimmune disorder characterized by bilateral flaccid limb weakness attributable to peripheral nerve damage (1). Increased GBS incidence has been reported in countries with local transmission of Zika virus, a flavivirus transmitted primarily by certain Aedes species mosquitoes (2). In Puerto Rico, three arthropod-borne viruses (arboviruses) are currently circulating: Zika, dengue, and chikungunya. The first locally acquired Zika virus infection in Puerto Rico was reported in December 2015 (3)...
2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27490087/update-ongoing-zika-virus-transmission-puerto-rico-november-1-2015-july-7-2016
#17
Laura Adams, Melissa Bello-Pagan, Matthew Lozier, Kyle R Ryff, Carla Espinet, Jomil Torres, Janice Perez-Padilla, Mitchelle Flores Febo, Emilio Dirlikov, Alma Martinez, Jorge Munoz-Jordan, Myriam Garcia, Marangely Olivero Segarra, Graciela Malave, Aidsa Rivera, Carrie Shapiro-Mendoza, Asher Rosinger, Matthew J Kuehnert, Koo-Whang Chung, Lisa L Pate, Angela Harris, Ryan R Hemme, Audrey Lenhart, Gustavo Aquino, Sherif Zaki, Jennifer S Read, Stephen H Waterman, Luisa I Alvarado, Francisco Alvarado-Ramy, Miguel Valencia-Prado, Dana Thomas, Tyler M Sharp, Brenda Rivera-Garcia
Zika virus is a flavivirus transmitted primarily by Aedes aegypti and Aedes albopictus mosquitoes, and infection can be asymptomatic or result in an acute febrile illness with rash (1). Zika virus infection during pregnancy is a cause of microcephaly and other severe birth defects (2). Infection has also been associated with Guillain-Barré syndrome (GBS) (3) and severe thrombocytopenia (4,5). In December 2015, the Puerto Rico Department of Health (PRDH) reported the first locally acquired case of Zika virus infection...
2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27469112/zika-virus-a-new-arboviral-public-health-problem
#18
Tulin Demir, Selcuk Kilic
Zika virus (ZIKV) is a single-stranded RNA virus in the Flaviviridae family and transmitted to human through infected mosquitos (Aedes aegypti and Aedes albopictus). Virus is closely related with other flaviviruses; dengue virus, yellow fever virus, West Nile virus, and Japanese encephalitis virus phylogenetically. Due to the possible relationship between virus and clinical features including microcephaly, ventricule, and eye deformities, Guillain-Barre syndrome increases the interest on this virus gradually...
November 2016: Folia Microbiologica
https://www.readbyqxmd.com/read/27435464/dengue-virus-envelope-dimer-epitope-monoclonal-antibodies-isolated-from-dengue-patients-are-protective-against-zika-virus
#19
J A Swanstrom, J A Plante, K S Plante, E F Young, E McGowan, E N Gallichotte, D G Widman, M T Heise, A M de Silva, R S Baric
UNLABELLED: Zika virus (ZIKV) is a mosquito-borne flavivirus responsible for thousands of cases of severe fetal malformations and neurological disease since its introduction to Brazil in 2013. Antibodies to flaviviruses can be protective, resulting in lifelong immunity to reinfection by homologous virus. However, cross-reactive antibodies can complicate flavivirus diagnostics and promote more severe disease, as noted after serial dengue virus (DENV) infections. The endemic circulation of DENV in South America and elsewhere raises concerns that preexisting flavivirus immunity may modulate ZIKV disease and transmission potential...
2016: MBio
https://www.readbyqxmd.com/read/27393087/zika-virus-infections-an-overview-of-current-scenario
#20
REVIEW
Javid Iqbal Dasti
Zika virus (ZIKV) was discovered more than half a century ago, recently it has gained unprecedented attention by the global health community. Until 2007, only 14 cases of human ZIKV infections were reported around the globe, while during the current outbreak, estimated cases mounted to approximately 1.5 million in Brazil alone, the virus was disseminated to wider South-American territories and travel-associated ZIKV infections were reported in USA, Europe and recently in China. ZIKV infections remain asymptomatic in approximately 80% of the individuals, and no anti-viral treatments were recommended...
July 2016: Asian Pacific Journal of Tropical Medicine
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