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neonatal dengue

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https://www.readbyqxmd.com/read/29607328/maternal-fetal-and-neonatal-outcomes-in-pregnant-dengue-patients-in-mexico
#1
Carlos Machain-Williams, Eric Raga, Carlos M Baak-Baak, Sungmin Kiem, Bradley J Blitvich, Celso Ramos
To increase our understanding of the consequences of dengue virus infection during pregnancy, a retrospective analysis was performed on the medical records of all completed pregnancies (live births and pregnancy losses) at nine public hospitals in the Gulf of Mexico from January to October 2013. Eighty-two patients developed clinical, laboratory-confirmed dengue virus infections while pregnant. Of these, 54 (65.9%) patients were diagnosed with dengue without warning signs, 15 (18.3%) patients were diagnosed with dengue with warning signs, and 13 (15...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29546926/-perinatal-dengue-a-case-report
#2
Ramiro Manzano Núñez, James Alejandro Zapata, Herney A García-Perdomo, Diego A Gomez, Mónica A Solís Velasco
INTRODUCTION: Few reports are available about perinatal dengue, with controversial results in regards the risk of perinatal outcome. OBJECTIVE: To report a case of perinatal dengue as a differential diagno sis with neonatal sepsis, which must be considered in endemic areas. CLINICAL CASE: Male newborn of a 23 year-old female, who presented a Non-Structural Protein 1 (NS1) antigen positive to dengue at 36 weeks of gestation and negative anti-dengue antibodies...
December 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29488594/-dengue-in-a-newborn
#3
Kovy Arteaga-Livias, Angela Bonilla-Crispin, Vicky Panduro-Correa, Carlos Martínez-Enríquez, Bernardo Dámaso-Mata
Dengue is the disease transmitted by arthropods of major importance in public health; however its presence in the neonatal stage is poorly studied, with few cases described worldwide. We present the case report of a neonate who started illness at 12 days of age, characterized by fever and irritability. He was hospitalized for suspicion of neonatal sepsis; later he presented thrombocytopenia and due the antecedent of his mother with diagnosis of dengue after childbirth, dengue tests were obtained in the neonate, resulting positive, then support treatment and fluid treatment is performed, with subsequent recovery...
October 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/29476066/vertical-transmission-of-the-zika-virus-causes-neurological-disorders-in-mouse-offspring
#4
Yingchao Shi, Shihua Li, Qian Wu, Le Sun, Junjing Zhang, Na Pan, Qihui Wang, Yuhai Bi, Jing An, Xuancheng Lu, George Fu Gao, Xiaoqun Wang
The association between Zika virus (ZIKV) infection and congenital malformations such as microcephaly in infants is a public health emergency. Although various in vivo and in vitro models are used for ZIKV research, few animal models are available for resolving the effects of maternal ZIKV infection on neonatal development. Here, we established an immunocompetent mouse model via intrauterine inoculation. Our results confirmed that ZIKV, but not dengue virus, infection caused spontaneous abortions, brain malformations, ocular abnormalities, spinal cord defects and paralysis in mouse offspring...
February 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29331320/zika-dengue-and-yellow-fever-viruses-induce-differential-anti-viral-immune-responses-in-human-monocytic-and-first-trimester-trophoblast-cells
#5
Huanle Luo, Evandro R Winkelmann, Ildefonso Fernandez-Salas, Li Li, Sandra V Mayer, Rogelio Danis-Lozano, Rosa Ma Sanchez-Casas, Nikos Vasilakis, Robert Tesh, Alan D Barrett, Scott C Weaver, Tian Wang
Zika virus (ZIKV) is a mosquito-borne flavivirus associated with severe neonatal birth defects, but the causative mechanism is incompletely understood. ZIKV shares sequence homology and early clinical manifestations with yellow fever virus (YFV) and dengue virus (DENV) and are all transmitted in urban cycles by the same species of mosquitoes. However, YFV and DENV have been rarely reported to cause congenital diseases. Here, we compared infection with a contemporary ZIKV strain (FSS13025) to YFV17D and DENV-4 in human monocytic cells (THP-1) and first-trimester trophoblasts (HTR-8)...
March 2018: Antiviral Research
https://www.readbyqxmd.com/read/29317569/neonatal-dengue-infection
#6
LETTER
Sriram Pothapregada
No abstract text is available yet for this article.
December 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/29242091/association-between-microcephaly-zika-virus-infection-and-other-risk-factors-in-brazil-final-report-of-a-case-control-study
#7
Thalia Velho Barreto de Araújo, Ricardo Arraes de Alencar Ximenes, Demócrito de Barros Miranda-Filho, Wayner Vieira Souza, Ulisses Ramos Montarroyos, Ana Paula Lopes de Melo, Sandra Valongueiro, Maria de Fátima Pessoa Militão de Albuquerque, Cynthia Braga, Sinval Pinto Brandão Filho, Marli Tenório Cordeiro, Enrique Vazquez, Danielle di Cavalcanti Souza Cruz, Claudio Maierovitch Pessanha Henriques, Luciana Caroline Albuquerque Bezerra, Priscila Mayrelle da Silva Castanha, Rafael Dhalia, Ernesto Torres Azevedo Marques-Júnior, Celina Maria Turchi Martelli, Laura Cunha Rodrigues
BACKGROUND: A Zika virus epidemic emerged in northeast Brazil in 2015 and was followed by a striking increase in congenital microcephaly cases, triggering a declaration of an international public health emergency. This is the final report of the first case-control study evaluating the potential causes of microcephaly: congenital Zika virus infection, vaccines, and larvicides. The published preliminary report suggested a strong association between microcephaly and congenital Zika virus infection...
March 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29110196/challenges-for-molecular-and-serological-zikv-infection-confirmation
#8
Zilton Farias Meira de Vasconcelos, Renata Campos Azevedo, Nathália Thompson, Leonardo Gomes, Letícia Guida, Maria Elisabeth Lopes Moreira
BACKGROUND: Zika Virus (ZIKV), member of Flaviviridae family and Flavivirus genus, has recently emerged as international public health emergency after its association with neonatal microcephaly cases. Clinical diagnosis hindrance involves symptom similarities produced by other arbovirus infections, therefore laboratory confirmation is of paramount importance. DISCUSSION: The most reliable test available is based on ZIKV RNA detection from body fluid samples. However, short viremia window periods and asymptomatic infections diminish the success rate for RT-PCR positivity...
January 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28956768/differentiated-human-sh-sy5y-cells-provide-a-reductionist-model-of-herpes-simplex-virus-1-neurotropism
#9
Mackenzie M Shipley, Colleen A Mangold, Chad V Kuny, Moriah L Szpara
Neuron-virus interactions that occur during herpes simplex virus (HSV) infection are not fully understood. Neurons are the site of lifelong latency and are a crucial target for long-term suppressive therapy or viral clearance. A reproducible neuronal model of human origin would facilitate studies of HSV and other neurotropic viruses. Current neuronal models in the herpesvirus field vary widely and have caveats, including incomplete differentiation, nonhuman origins, or the use of dividing cells that have neuropotential but lack neuronal morphology...
December 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28945244/human-antibodies-to-the-dengue-virus-e-dimer-epitope-have-therapeutic-activity-against-zika-virus-infection
#10
Estefania Fernandez, Wanwisa Dejnirattisai, Bin Cao, Suzanne M Scheaffer, Piyada Supasa, Wiyada Wongwiwat, Prabagaran Esakky, Andrea Drury, Juthathip Mongkolsapaya, Kelle H Moley, Indira U Mysorekar, Gavin R Screaton, Michael S Diamond
The Zika virus (ZIKV) epidemic has resulted in congenital abnormalities in fetuses and neonates. Although some cross-reactive dengue virus (DENV)-specific antibodies can enhance ZIKV infection in mice, those recognizing the DENV E-dimer epitope (EDE) can neutralize ZIKV infection in cell culture. We evaluated the therapeutic activity of human monoclonal antibodies to DENV EDE for their ability to control ZIKV infection in the brains, testes, placentas, and fetuses of mice. A single dose of the EDE1-B10 antibody given 3 d after ZIKV infection protected against lethality, reduced ZIKV levels in brains and testes, and preserved sperm counts...
November 2017: Nature Immunology
https://www.readbyqxmd.com/read/28916391/zika-virus-structural-biology-and-progress-in-vaccine-development
#11
REVIEW
Hsiao-Han Lin, Bak-Sau Yip, Li-Min Huang, Suh-Chin Wu
The growing number of zika virus (ZIKV) infections plus a 20-fold increase in neonatal microcephaly in newborns in Brazil have raised alarms in many countries regarding the threat to pregnant women. Instances of microcephaly and central nervous system malformations continue to increase in ZIKV outbreak regions. ZIKV is a small enveloped positive-strand RNA virus belonging to the Flavivirus genus of the Flaviviridae family. High-resolution ZIKV structures recently identified by cryo-electron microscopy indicate that the overall ZIKV structure is similar to those of other flaviviruses...
January 2018: Biotechnology Advances
https://www.readbyqxmd.com/read/28877754/association-between-suspected-zika-virus-disease-during-pregnancy-and-giving-birth-to-a-newborn-with-congenital-microcephaly-a-matched-case-control-study
#12
Ticiane Henriques Santa Rita, Renata Barcelos Barra, Gisele Pasquali Peixoto, Pedro Goes Mesquita, Gustavo Barcelos Barra
OBJECTIVE: In early 2015, an outbreak of an acute exanthematous illness with dengue-like symptoms occurred in northeastern Brazil. By the end of the same year, an unexpected increase in the number of cases of microcephaly was observed in the region. The microcephaly outbreak cause was unknown and rumors pointing to various potential causes arose. Since we were unaware at the time if this scenario would attract the interest of the broader scientific community, due to the neglected regions associated and as often happens with many others health conditions related to infectious diseases in Latin America...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28644549/a-retrospective-analysis-of-the-symptoms-and-course-of-dengue-infection-during-pregnancy
#13
Kavita Agarwal, Sunita Malik, Pratima Mittal
OBJECTIVE: To assess outcomes among pregnant women diagnosed with dengue infection. METHODS: In a retrospective study, the medical records of all pregnant women with dengue infection admitted to Safdarjung Hospital, New Delhi, India, from July to December 2015 were reviewed. Maternal and fetal outcomes were compared by pregnancy length and stage of disease at diagnosis. RESULTS: Overall, 62 pregnant women with dengue infection were identified...
October 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28614453/dengue-infection-during-pregnancy-and-adverse-maternal-fetal-and-infant-health-outcomes-in-rio-branco-acre-state-brazil-2007-2012
#14
Helena Albuquerque Catão Feitoza, Sergio Koifman, Rosalina Jorge Koifman, Valéria Saraceni
The effects of dengue infection during pregnancy have not been previously studied in Rio Branco, Acre State, Brazil. The aim of this study was to determine the risks of maternal, fetal, and infant complications resulting from dengue infection during pregnancy. The study compared two cohorts of pregnant women, exposed versus unexposed to dengue virus, from 2007 to 2012. Incidence rates and risk ratios were estimated for maternal, fetal, and infant complications. In the exposed cohort there were 3 fetal deaths and 5 neonatal deaths...
June 12, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28487557/humoral-cross-reactivity-between-zika-and-dengue-viruses-implications-for-protection-and-pathology
#15
REVIEW
Lalita Priyamvada, William Hudson, Rafi Ahmed, Jens Wrammert
Zika virus (ZIKV) is a re-emerging mosquito-borne flavivirus that has recently caused extensive outbreaks in Central and South America and the Caribbean. Given its association with Guillain-Barré syndrome in adults and neurological and ocular malformities in neonates, ZIKV has become a pathogen of significant public health concern worldwide. ZIKV shares a considerable degree of genetic identity and structural homology with other flaviviruses, including dengue virus (DENV). In particular, the surface glycoprotein envelope (E), which is involved in viral fusion and entry and is therefore a chief target for neutralizing antibody responses, contains regions that are highly conserved between the two viruses...
May 10, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28243937/zika-virus-an-emerging-flavivirus
#16
REVIEW
Sang-Im Yun, Young-Min Lee
Zika virus (ZIKV) is a previously little-known flavivirus closely related to Japanese encephalitis, West Nile, dengue, and yellow fever viruses, all of which are primarily transmitted by blood-sucking mosquitoes. Since its discovery in Uganda in 1947, ZIKV has continued to expand its geographic range, from equatorial Africa and Asia to the Pacific Islands, then further afield to South and Central America and the Caribbean. Currently, ZIKV is actively circulating not only in much of Latin America and its neighbors but also in parts of the Pacific Islands and Southeast Asia...
March 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28177195/high-incidence-of-zika-virus-infection-detected-in-plasma-and-cervical-cytology-specimens-from-pregnant-women-in-guayaquil-ecuador
#17
Hector Zambrano, Jesse Waggoner, Karina León, Benjamin Pinsky, Ketty Vera, Marissa Schettino, Lisette Rivera, José Landivar, María Granda, Angela Lee, Gil Mor
Zika virus (ZIKV) infection during pregnancy has been linked to severe birth defects, and the epidemiologic situation of the ZIKV epidemic in Ecuador is poorly understood. Guayaquil, Ecuador, has a tropical climate and experiences frequent outbreaks of dengue and chikungunya virus, and in December 2015, ZIKV was identified. Given the well-documented effects of ZIKV in pregnancy, including microcephaly, we tested for the presence of ZIKV in both plasma and cervical cytology of pregnant women. We report the identification of a population of pregnant women with a high incidence of ZIKV infection detected in the plasma and lower reproductive tract...
February 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28152048/zika-virus-antagonizes-type-i-interferon-responses-during-infection-of-human-dendritic-cells
#18
James R Bowen, Kendra M Quicke, Mohan S Maddur, Justin T O'Neal, Circe E McDonald, Nadia B Fedorova, Vinita Puri, Reed S Shabman, Bali Pulendran, Mehul S Suthar
Zika virus (ZIKV) is an emerging mosquito-borne flavivirus that is causally linked to severe neonatal birth defects, including microcephaly, and is associated with Guillain-Barre syndrome in adults. Dendritic cells (DCs) are an important cell type during infection by multiple mosquito-borne flaviviruses, including dengue virus, West Nile virus, Japanese encephalitis virus, and yellow fever virus. Despite this, the interplay between ZIKV and DCs remains poorly defined. Here, we found human DCs supported productive infection by a contemporary Puerto Rican isolate with considerable variability in viral replication, but not viral binding, between DCs from different donors...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/27982356/vertical-transmission-of-dengue-infection-the-first-putative-case-reported-in-china
#19
Xueru Yin, Xiaozhu Zhong, Shilei Pan
Dengue is a systemic viral infection that is commonly transmitted between humans via mosquitoes. Other modes of transmission such as the vertical one are rare and have been infrequently reported in the literature. This report investigates one case of vertical transmission of dengue in Guangzhou, China. A G1P1 lady at 39 weeks of gestation was referred to the Huzhong Hospital presenting a fever for two days. She subsequently developed a skin rash on the back and lower limb and at that time she had already experienced five days of fever...
December 8, 2016: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/27982355/detection-of-human-anti-zika-virus-igg-by-elisa-using-an-antigen-from-in-vitro-infected-vero-cells-preliminary-results
#20
COMPARATIVE STUDY
Laura Masami Sumita, Jaqueline Polizeli Rodrigues, Noely Evangelista Ferreira, Alvina Clara Felix, Nathalia Caroline Santiago Souza, Clarisse Martins Machado, Heitor Franco de Andrade Júnior
Zika virus (ZKV) infection is a huge public health problem in Brazil because of the increased incidence of microcephaly in neonates from infected mothers. Detection of specific IgG antibodies in maternal serum samples constitutes an important approach for diagnosing ZKV infection and evaluating its relationship with neonatal microcephaly. However, as there is no serological test produced in Brazil to detect IgM and IgG antibodies against ZKV, we sought to examine specific IgG in serum samples from patients or suspected mothers to detect previous infection and to test for specificity with regard to flaviviral infections occurring in the same area...
December 8, 2016: Revista do Instituto de Medicina Tropical de São Paulo
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