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Zika and pregnancy

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https://www.readbyqxmd.com/read/29145516/preconceptual-zika-virus-asymptomatic-infection-protects-against-secondary-prenatal-infection
#1
Lucien H Turner, Jeremy M Kinder, Adrienne Wilburn, Rahul J D'Mello, Makayla R Braunlin, Tony T Jiang, Giang Pham, Sing Sing Way
Pregnant women, and their fetal offspring, are uniquely susceptible to Zika virus and other microbial pathogens capable of congenital fetal infection. Unavoidable exposure to Zika virus in endemic areas underscores the need for identifying at-risk individuals, and protecting expecting mothers and their fetal offspring against prenatal infection. Here we show that primary Zika virus asymptomatic infection in mice confers protection against re-infection, and that these protective benefits are maintained during pregnancy...
November 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29141747/prevention-practices-among-the-united-states-pregnant-women-who-travel-to-zika-outbreak-areas
#2
Abbey B Berenson, Jacqueline M Hirth, Fangjian Guo, Erika L Fuchs, Scott C Weaver
We surveyed pregnant women from the United States to assess the prevention practices they used when traveling to countries with ongoing Zika virus (ZIKV) outbreaks. Of the 749 who agreed to participate, 710 completed the survey's travel questions and 59 of those had traveled to a ZIKV outbreak area in the past 12 months. Only 43% of the women who had traveled to ZIKV outbreak areas reported frequently using mosquito repellant with 32% stating they did not use it at all. They also did not frequently use other recommended methods to prevent mosquito bites...
October 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29140935/cerebral-infarction-and-refractory-seizures-in-a-neonate-with-suspected-zika-virus-infection
#3
Adam Raymond, Jonathan Jakus
Congenital Zika syndrome is a set of congenital anomalies associated with Zika virus infection during pregnancy. We present the unique case of a neonate born to a suspected Zika virus positive mother that developed an embolic stroke and medication resistant seizures. This report may impact the evolving definition of congenital Zika syndrome.
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29138300/high-zika-virus-seroprevalence-in-salvador-northeastern-brazil-limits-the-potential-for-further-outbreaks
#4
Eduardo Martins Netto, Andres Moreira-Soto, Celia Pedroso, Christoph Höser, Sebastian Funk, Adam J Kucharski, Alexandra Rockstroh, Beate M Kümmerer, Gilmara Souza Sampaio, Estela Luz, Sara Nunes Vaz, Juarez Pereira Dias, Fernanda Anjos Bastos, Renata Cabral, Thomas Kistemann, Sebastian Ulbert, Xavier de Lamballerie, Thomas Jaenisch, Oliver J Brady, Christian Drosten, Manoel Sarno, Carlos Brites, Jan Felix Drexler
During 2015 to 2016, Brazil reported more Zika virus (ZIKV) cases than any other country, yet population exposure remains unknown. Serological studies of ZIKV are hampered by cross-reactive immune responses against heterologous viruses. We conducted serosurveys for ZIKV, dengue virus (DENV), and Chikungunya virus (CHIKV) in 633 individuals prospectively sampled during 2015 to 2016, including microcephaly and non-microcephaly pregnancies, HIV-infected patients, tuberculosis patients, and university staff in Salvador in northeastern Brazil using enzyme-linked immunosorbent assays (ELISAs) and plaque reduction neutralization tests...
November 14, 2017: MBio
https://www.readbyqxmd.com/read/29133154/adverse-birth-outcomes-associated-with-zika-virus-exposure-during-pregnancy-in-s%C3%A3-o-jos%C3%A3-do-rio-preto-brazil
#5
Mauricio Lacerda Nogueira, Nivison Ruy Rocha Nery Júnior, Cássia Fernanda Estofolete, Ana Carolina Bernardes Terzian, Georgia de Freitas Guimarães, Nathalia Zini, Rafael Alves da Silva, Gislaine Celestino Dutra Silva, Ligia Cosentino Junqueira Franco, Paula Rahal, Cintia Bittar, Bruno Carneiro, Pedro Fernando Vasconcelos da Costa, Daniele Freitas Henriques, Deusenia Machado Ulisses Barbosa, Patrícia Lopes Rombola, Luciana de Grande, Andréia Francesli Negri Reis, Sacha Ariane Palomares, Marcia Wakai Catelan, Lilian Elisa Arão Antonio Cruz, Silvia Helena Necchi, Rita de Cassia Vilella Mendonça, Izalco Nuremberg Penha Dos Santos, Suzimeiri Brigatti Alavarse Caron, Federico Costa, Fernando A Bozza, Antonio Soares de Souza, Cinara Cássia Brandão de Mattos, Luiz Carlos de Mattos, Nikos Vasilakis, Antonio Helio Oliani, Denise Cristina Mós Vaz Oliani, Albert Icksang Ko
OBJECTIVE: We aimed to report the first 54 cases of pregnant women infected by Zika vírus (ZIKV) and their virological and clinical outcomes, as well as the newborns' outcomes in 2016, after the emergence of ZIKV in dengue endemic areas of São Paulo, Brazil. METHODS: This is a descriptive study performed from February to October 2016 on 54 qPCR ZIKV-positive pregnant women identified by the Public Health Authority of São Jose do Rio Preto, São Paulo, Brazil...
November 10, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29131923/zika-virus-a-review-for-pediatricians
#6
Taylor Heald-Sargent, William Muller
For the past several years, the Zika virus has been a topic of conversation among pediatric health care providers in many settings. This article provides current answers to many questions that may be posed to pediatricians, including inquiries about clinical presentation, testing, and prevention. Although infants born with congenital Zika syndrome often have microcephaly, there are other characteristic features, such as eye abnormalities, that one should recognize. Additionally, testing for the syndrome must be considered in all infants at risk for infection, including those who are asymptomatic at birth...
November 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/29127595/neurological-manifestations-of-congenital-zika-virus-infection
#7
Tania Saad, Alessandra Augusta PennaeCosta, Fernanda Veiga de Góes, Marcela de Freitas, Julia Valeriano de Almeida, Lúcio José de Santa Ignêz, Ana Paula Amancio, Renata Joviano Alvim, Ludmilla Athayde Antunes Kramberger
INTRODUCTION: In 2015, it was observed a rise in the number of microcephalic newborns associated with a history of non-specific febrile sickness and rash during pregnancy in Brazil. Since then, microcephaly has emerged as a public health concern. A few months after, the causal relation between congenital microcephaly and the Zika virus was discovered. Zika virus, an arbovirus, is a new TORCH member that leads to congenital infection through vertical transmission and harms the developing brain, disrupting synaptogenesis, and causing other central nervous system lesions...
November 10, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29126899/merimepodib-an-impdh-inhibitor-suppresses-replication-of-zika-virus-and-other-emerging-viral-pathogens
#8
Xiao Tong, Jeanon Smith, Natalya Bukreyeva, Takaaki Koma, John T Manning, Raj Kalkeri, Ann D Kwong, Slobodan Paessler
Zika virus (ZIKV), a member of the Flaviviridae family, has recently been linked to abnormal pregnancies, fetal death, microcephaly, and Guillain-Barré syndrome in humans. Merimepodib (MMPD, VX-497), a potent inhibitor of inosine-5'-monophosphate dehydrogenase (IMPDH), has shown antiviral activity against HCV and a variety of DNA and RNA viruses in vitro. In this report, we expand the antiviral spectrum of MMPD, and demonstrate that MMPD inhibits ZIKV RNA replication with an EC50 of 0.6 μM. Furthermore, MMPD reduces the virus production of ZIKV as well as several other important emerging viral pathogens such as Ebola, Lassa, Chikungunya, and Junin viruses...
November 8, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29121000/meeting-summary-state-and-local-implementation-strategies-for-increasing-access-to-contraception-during-zika-preparedness-and-response-united-states-september-2016
#9
Charlan D Kroelinger, Lisa Romero, Eva Lathrop, Shanna Cox, Isabel Morgan, Meghan T Frey, Lee Warner, Kathryn M Curtis, Karen Pazol, Wanda D Barfield, Dana Meaney-Delman, Denise J Jamieson
Zika virus infection during pregnancy is a cause of microcephaly and other serious brain abnormalities (1). To support state and territory response to the threat of Zika, CDC's Interim Zika Response Plan outlined activities for vector control; clinical management of exposed pregnant women and infants; targeted communication about Zika virus transmission among women and men of reproductive age; and primary prevention of Zika-related adverse pregnancy and birth outcomes by prevention of unintended pregnancies through increased access to contraception...
November 10, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29117563/outcomes-of-congenital-zika-disease-depend-on-timing-of-infection-and-maternal-fetal-interferon-action
#10
Jinling Chen, Yuejin Liang, Panpan Yi, Lanman Xu, Hal K Hawkins, Shannan L Rossi, Lynn Soong, Jiyang Cai, Ramkumar Menon, Jiaren Sun
Zika virus (ZIKV) infection during pregnancy in humans results in intrauterine growth restriction, spontaneous abortion, and microcephaly. Here, we found that fetus-derived type I interferon (IFN-I) signaling can enhance anti-ZIKV responses and provide clinical benefits to the fetus. Because IFN-λ shares signaling cascades and antiviral functions with IFN-I, we investigated the in vivo effects of IFN-λ in ZIKV-infected pregnant mice. IFN-λ administration during mid-pregnancy reduced ZIKV burden in maternal and fetal organs and alleviated placental injuries and fetal demise...
November 7, 2017: Cell Reports
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
#11
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/29111579/knowledge-and-perceptions-of-zika-virus-among-reproductive-aged-women-after-public-announcement-of-local-mosquito-borne-transmission
#12
Christine L Curry, Colette Tse, Victoria Billero, Leah Hellerstein, Marisa Messore, Lydia Fein
AIM: This study was conducted to ascertain the knowledge and perceptions of the Zika virus among reproductive-aged women living in the first affected area of the United States with local mosquito-borne transmission. METHODS: Reproductive-aged women were surveyed during the four weeks immediately following the announcement of local Zika virus transmission. The survey evaluated the participant's knowledge of Zika pathogenesis and transmission, sequelae of infection, epidemiology and public health information...
November 7, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29106643/zika-virus-replicates-in-proliferating-cells-in-explants-from-first-trimester-human-placentas-potential-sites-for-dissemination-of-infection
#13
Takako Tabata, Matthew Petitt, Henry Puerta-Guardo, Daniela Michlmayr, Eva Harris, Lenore Pereira
Background: Maternal Zika virus (ZIKV) infection with prolonged viremia leads to fetal infection and congenital Zika syndrome. We reported that ZIKV infects primary cells from human placentas and fetal membranes. Here, we studied viral replication in numerous explants of anchoring villi and basal decidua from first-trimester human placentas and mid-gestation amniotic epithelial cells (AmEpCs). Methods: Explants and AmEpCs were infected with American and African ZIKV strains at low multiplicities, and ZIKV proteins were visualized by immunofluorescence...
November 2, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29099873/assessing-zika-virus-replication-and-the-development-of-zika-specific-antibodies-after-a-mid-gestation-viral-challenge-in-guinea-pigs
#14
Craig J Bierle, Claudia Fernández-Alarcón, Nelmary Hernandez-Alvarado, Jason C Zabeli, Bradley C Janus, Dira S Putri, Mark R Schleiss
Primary Zika virus (ZIKV) infections that occur during pregnancy can cause spontaneous abortion and profoundly disrupt fetal development. While the full range of developmental abnormalities associated with congenital Zika syndrome is not yet known, severe cases of the syndrome can present with microcephaly, extensive neurologic and ocular damage, and pronounced joint malformations. Animal models that accurately recapitulate congenital Zika syndrome are urgently needed for vaccine development and for the study of ZIKV pathogenesis...
2017: PloS One
https://www.readbyqxmd.com/read/29096005/management-of-zika-virus-in-pregnancy-a-review
#15
Helen Perry, Asma Khalil, Emma Aarons, Katherine Russell, Patrick O'Brien
Introduction/background: Since 2015, an epidemic of Zika virus spread across the Americas. This coincided with an increased incidence of microcephaly reported at birth in Brazil, with subsequent evidence of a causal association. Sources of data: Systemic reviews, observational studies, public health organizations. Areas of agreement: Zika virus causes microcephaly and brain abnormalities in infants born to mothers infected during or shortly before pregnancy...
October 31, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29093650/understanding-the-pathogenesis-of-zika-virus-infection-using-animal-models
#16
REVIEW
Keeton K Krause, Francine Azouz, Ok Sarah Shin, Mukesh Kumar
Zika virus (ZIKV) is a member of Flaviviridae family that has emerged as a pathogen of significant public health importance. The rapid expansion of ZIKV in the South and Central America has recently gained medical attention emphasizing the capacity of ZIKV to spread to non-endemic regions. ZIKV infection during pregnancy has been demonstrated to cause microcephaly and other fetal developmental abnormalities. An increased incidence of Guillain-Barre syndrome, an immune mediated neuropathy of the peripheral nervous system, has also been reported in ZIKV-infected patients in French Polynesia and Brazil...
October 2017: Immune Network
https://www.readbyqxmd.com/read/29081814/roles-of-interferons-in-pregnant-women-with-dengue-infection-protective-or-dangerous-factors
#17
REVIEW
Hao Zhang, Zhiyi He, Wenting Zeng, Hong-Juan Peng
Dengue infection is a serious public health problem in tropical and subtropical areas. With the recent outbreaks of Zika disease and its reported correlation with microcephaly, the large number of pregnancies with dengue infection has become a serious concern. This review describes the epidemiological characteristics of pregnancy with dengue and the initial immune response to dengue infection, especially in IFNs production in this group of patients. Dengue is much more prevalent in pregnant women compared with other populations...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/29077936/urinary-concentrations-of-3-diethylcarbamoyl-benzoic-acid-dcba-a-major-metabolite-of-n-n-diethyl-m-toluamide-deet-and-semen-parameters-among-men-attending-a-fertility-center
#18
Thalia R Segal, Lidia Mínguez-Alarcón, Yu-Han Chiu, Paige L Williams, Feiby L Nassan, Ramace Dadd, María Ospina, Antonia M Calafat, Russ Hauser
STUDY QUESTION: Are specific gravity (SG)-adjusted urinary concentrations of 3-(diethylcarbamoyl)benzoic acid (DCBA) associated with semen parameters among men attending an academic fertility center? SUMMARY ANSWER: Our study did not demonstrate any association between SG-adjusted urinary DCBA concentrations and semen parameters among men attending an academic fertility center. WHAT IS KNOWN ALREADY: N,N-Diethyl-m-toluamide (DEET) is the most common active ingredient in consumer insect repellents...
October 25, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29058664/expected-duration-of-adverse-pregnancy-outcomes-after-zika-epidemic
#19
Rosalind M Eggo, Adam J Kucharski
Evidence is increasing that Zika virus-related adverse outcomes can occur throughout pregnancy. Mathematical modeling analysis using reported outcome data suggests that surveillance for these outcomes should begin as soon as an outbreak is detected and should continue for 40 weeks after the outbreak ends.
January 15, 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29049277/update-interim-guidance-for-the-diagnosis-evaluation-and-management-of-infants-with-possible-congenital-zika-virus-infection-united-states-october-2017
#20
Tolulope Adebanjo, Shana Godfred-Cato, Laura Viens, Marc Fischer, J Erin Staples, Wendi Kuhnert-Tallman, Henry Walke, Titilope Oduyebo, Kara Polen, Georgina Peacock, Dana Meaney-Delman, Margaret A Honein, Sonja A Rasmussen, Cynthia A Moore
CDC has updated its interim guidance for U.S. health care providers caring for infants with possible congenital Zika virus infection (1) in response to recently published updated guidance for health care providers caring for pregnant women with possible Zika virus exposure (2), unknown sensitivity and specificity of currently available diagnostic tests for congenital Zika virus infection, and recognition of additional clinical findings associated with congenital Zika virus infection. All infants born to mothers with possible Zika virus exposure* during pregnancy should receive a standard evaluation at birth and at each subsequent well-child visit including a comprehensive physical examination, age-appropriate vision screening and developmental monitoring and screening using validated tools (3-5), and newborn hearing screen at birth, preferably using auditory brainstem response (ABR) methodology (6)...
October 20, 2017: MMWR. Morbidity and Mortality Weekly Report
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