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ZIKA VIRUS AND PREGNANCY

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https://www.readbyqxmd.com/read/27920162/-hey-everybody-don-t-get-pregnant-zika-who-and-an-ethical-framework-for-advising
#1
Katie Byron, Dana Howard
WHO recently issued new guidance on the prevention of sexual transmission of Zika virus. The updated guidance states that '[c]ountry health programmes should ensure that… [i]n order to prevent adverse pregnancy and fetal outcomes, men and women of reproductive age, living in areas where local transmission of Zika virus is known to occur, be correctly informed and oriented to consider delaying pregnancy'. While the media has reported this advice as WHO telling couples in Zika-affected regions to avoid pregnancy, WHO states that they are not doing that...
December 5, 2016: Journal of Medical Ethics
https://www.readbyqxmd.com/read/27919154/-many-doubts-about-the-relationship-between-cases-of-microcephaly-and-zika-virus-in-brazil
#2
Roberto Ronchetti, Pietro Massimiliano Bianco
During the last few years, Zika virus rapidly spread across Central and South America and in the last months has spread also across Southern States of USA. As the epidemic began in Brazil, an increase of microcephaly cases was registered, causing concern and inducing the World Health Organization to raise an alarm. Certainly, the Zika virus, as many other viruses, has the capacity to induce severe cerebral lesions in foetuses of women infected during the first months of pregnancy. Moreover, more than 80% of cases of craniostenosys that verisimilarly took place in Brazil from September 2015 up to now were registered in few states of North- Eastern Brazil, where peaks of this malformation were registered several years before the appearance of Zika virus...
November 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27912091/genetic-ablation-of-axl-does-not-protect-human-neural-progenitor-cells-and-cerebral-organoids-from-zika-virus-infection
#3
Michael F Wells, Max R Salick, Ole Wiskow, Daniel J Ho, Kathleen A Worringer, Robert J Ihry, Sravya Kommineni, Bilada Bilican, Joseph R Klim, Ellen J Hill, Liam T Kane, Chaoyang Ye, Ajamete Kaykas, Kevin Eggan
Zika virus (ZIKV) can cross the placental barrier, resulting in infection of the fetal brain and neurological defects including microcephaly. The cellular tropism of ZIKV and the identity of attachment factors used by the virus to gain access to key cell types involved in pathogenesis are under intense investigation. Initial studies suggested that ZIKV preferentially targets neural progenitor cells (NPCs), providing an explanation for the developmental phenotypes observed in some pregnancies. The AXL protein has been nominated as a key attachment factor for ZIKV in several cell types including NPCs...
December 1, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27911847/zika-virus-cell-tropism-in-the-developing-human-brain-and-inhibition-by-azithromycin
#4
Hanna Retallack, Elizabeth Di Lullo, Carolina Arias, Kristeene A Knopp, Matthew T Laurie, Carmen Sandoval-Espinosa, Walter R Mancia Leon, Robert Krencik, Erik M Ullian, Julien Spatazza, Alex A Pollen, Caleigh Mandel-Brehm, Tomasz J Nowakowski, Arnold R Kriegstein, Joseph L DeRisi
The rapid spread of Zika virus (ZIKV) and its association with abnormal brain development constitute a global health emergency. Congenital ZIKV infection produces a range of mild to severe pathologies, including microcephaly. To understand the pathophysiology of ZIKV infection, we used models of the developing brain that faithfully recapitulate the tissue architecture in early to midgestation. We identify the brain cell populations that are most susceptible to ZIKV infection in primary human tissue, provide evidence for a mechanism of viral entry, and show that a commonly used antibiotic protects cultured brain cells by reducing viral proliferation...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27902502/zika-virus-and-patient-blood-management
#5
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/27893080/travel-associated-zika-virus-disease-acquired-in-the-americas-through-february-2016-a-geosentinel-analysis
#6
Davidson H Hamer, Kira A Barbre, Lin H Chen, Martin P Grobusch, Patricia Schlagenhauf, Abraham Goorhuis, Perry J J van Genderen, Israel Molina, Hilmir Asgeirsson, Phyllis E Kozarsky, Eric Caumes, Stefan H Hagmann, Frank P Mockenhaupt, Gilles Eperon, Elizabeth D Barnett, Emmanuel Bottieau, Andrea K Boggild, Philippe Gautret, Noreen A Hynes, Susan Kuhn, R Ryan Lash, Karin Leder, Michael Libman, Denis J M Malvy, Cecilia Perret, Camilla Rothe, Eli Schwartz, Annelies Wilder-Smith, Martin S Cetron, Douglas H Esposito
Background: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers. Objective: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas. Design: Descriptive, using GeoSentinel records. Setting: 63 travel and tropical medicine clinics in 30 countries. Patients: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016...
November 22, 2016: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27889615/inactivation-of-zika-virus-in-human-breast-milk-by-prolonged-storage-or-pasteurization
#7
Stephanie Pfaender, Nathalie J Vielle, Nadine Ebert, Eike Steinmann, Marco P Alves, Volker Thiel
Zika virus infection during pregnancy poses a serious risk for pregnant women as it can cause severe birth defects. Even though the virus is mainly transmitted via mosquitos, human-to-human transmission has been described. Infectious viral particles have been detected in breast milk of infected women which raised concerns regarding the safety of breastfeeding in areas of Zika virus transmission or in case of a suspected or confirmed Zika virus infection. In this study, we show that Zika virus is effectively inactivated in human breast milk after prolonged storage or upon pasteurization of milk...
November 23, 2016: Virus Research
https://www.readbyqxmd.com/read/27885741/zika-and-pregnancy-a-comprehensive-review
#8
Adrija Hajra, Dhrubajyoti Bandyopadhyay, Lyndsey R Heise, Rajarshi Bhadra, Somedeb Ball, Shyamal Kumar Hajra
Zika virus (ZIKV) infection is a well-nurtured topic for healthcare personnel nowadays. Central nervous system involvement including microcephaly and ocular involvements has already been reported in neonates of affected pregnant ladies. In this article, we have discussed these effects on the newborns of ZIKV-infected mothers. The proposed pathogenesis, modes of transmission of this infection from mothers to the fetuses, diagnosis of the cases and precaution for the pregnant ladies have also been discussed. We have gathered the recently available data on the risk of ZIKV for expectant mothers from PubMed, https://www...
November 25, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27875460/insect-repellants-during-pregnancy-in-the-era-of-the-zika-virus
#9
Beuy Joob, Viroj Wiwanitkit
No abstract text is available yet for this article.
December 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27869982/characteristics-of-the-first-cases-of-microcephaly-possibly-related-to-zika-virus-reported-in-the-metropolitan-region-of-recife-pernambuco-state-brazil
#10
Alexander Vargas, Eduardo Saad, George Santiago Dimech, Roselene Hans Santos, Maria Auxiliadora Vieira Caldas Sivini, Luciana Carolina Albuquerque, Patricia Michelly Santos Lima, Idalacy de Carvalho Barreto, Michelly Evangelista de Andrade, Nathalie Mendes Estima, Patrícia Ismael de Carvalho, Rayane Souza de Andrade Azevedo, Rita de Cássia de Oliveira Vasconcelos, Romildo Siqueira Assunção, Lívia Carla Vinhal Frutuoso, Greice Madeleine Ikeda do Carmo, Priscila Bochi de Souza, Marcelo Yoshito Wada, Wanderson Kleber de Oliveira, Cláudio Maierovitch Pessanha Henriques, Jadher Percio
OBJECTIVE: to describe the first cases of microcephaly possibly related to Zika virus in live born babies reported in the Metropolitan Region of Recife, Pernambuco State, Brazil. METHODS: this was a descriptive case series study (cases reported between August 1st and October 31st 2015), using medical record data and data from a questionnaire answered by the mothers of the babies. RESULTS: 40 microcephaly cases were confirmed, distributed in eight municipalities within the Metropolitan Region, with Recife itself having the highest concentration of cases (n=12); median head circumference was 29 cm, median chest girth was 31 cm and median weight was 2,628 grams; 21/25 cases had brain calcification, ventriculomegaly or lissencephaly; 27 of the 40 mothers reported rash during pregnancy, 20 in the first trimester and 7 in the second trimester, as well as itching, headache, myalgia and absence of fever...
October 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27868318/zika-virus-infection-and-biological-treatment-for-reproductive-medicine
#11
Joanne Kwak-Kim, Jeehey Song, Michael Woo-Il Kim, Alice Gilman-Sachs
The recent Zika virus (ZIKV) epidemic is particularly challenging in the field of reproductive medicine as various biological tissues and byproducts, such as intravenous immunoglobulin G or cells are utilized during reproductive cycles, and an infected mother has an increased risk of having babies with fetal microcephaly and other congenital brain anomalies. In this review, current guidelines for prevention of sexual transmission of ZIKV, ZIKV testing, and tissue and blood product usages are summarized for physicians caring for those planning pregnancy or going through infertility treatment...
November 21, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27862959/understanding-zika-virus
#12
John S Murray
PURPOSE: This article describes what pediatric healthcare professionals should know about Zika virus (ZIKV). LITERATURE REVIEW: ZIKV is classified as an arthropod-borne, single-stranded RNA virus of the Flaviviridae family and genus Flavivirus. ZIKV is not new. The virus was first discovered almost 70 years ago in Uganda. The first isolate of the virus was found in rhesus monkeys in the Zika Forrest, hence the nomenclature. The primary route of ZIKV transmission to humans is through the bite of an infected Aedes species mosquito-primarily Aedes aegypti...
November 9, 2016: Journal for Specialists in Pediatric Nursing: JSPN
https://www.readbyqxmd.com/read/27845968/epidemiology-of-zika
#13
Carmen C Deseda
PURPOSE OF REVIEW: Zika virus (ZIKV) is the latest 'emerging virus' that has affected the Americas. First identified in the mid-20th century in Uganda, it was described as a vector arthropod-borne virus (arbovirus) and subsequently found capable of producing illness in humans. The illness was not different from other flavivirus infections and caused a relatively mild disease characterized by low-grade fever, nonspecific exanthem, nonpurulent conjunctivitis, and mild to moderate arthralgia...
November 14, 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27832051/incidence-of-zika-virus-disease-by-age-and-sex-puerto-rico-november-1-2015-october-20-2016
#14
Matthew Lozier, Laura Adams, Mitchelle Flores Febo, Jomil Torres-Aponte, Melissa Bello-Pagan, Kyle R Ryff, Jorge Munoz-Jordan, Myriam Garcia, Aidsa Rivera, Jennifer S Read, Stephen H Waterman, Tyler M Sharp, Brenda Rivera-Garcia
Zika virus is a flavivirus transmitted primarily by Aedes species mosquitoes; symptoms of infection include rash, arthralgia, fever, and conjunctivitis.*(,)(†) Zika virus infection during pregnancy can cause microcephaly and other serious brain anomalies (1), and in rare cases, Zika virus infection has been associated with Guillain-Barré syndrome (2) and severe thrombocytopenia (3). This report describes the incidence of reported symptomatic Zika virus disease in the U.S. territory of Puerto Rico by age and sex...
November 11, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27819683/neutralizing-human-antibodies-prevent-zika-virus-replication-and-fetal-disease-in-mice
#15
Gopal Sapparapu, Estefania Fernandez, Nurgun Kose, Bin Cao, Julie M Fox, Robin G Bombardi, Haiyan Zhao, Christopher A Nelson, Aubrey L Bryan, Trevor Barnes, Edgar Davidson, Indira U Mysorekar, Daved H Fremont, Benjamin J Doranz, Michael S Diamond, James E Crowe
Zika virus (ZIKV) is an emerging mosquito-transmitted flavivirus that can cause severe disease, including congenital birth defects during pregnancy(1). To develop candidate therapeutic agents against ZIKV, we isolated a panel of human monoclonal antibodies (mAbs) from subjects with prior ZIKV infection. A subset of mAbs recognized diverse epitopes on the envelope (E) protein and exhibited potently neutralizing activity. One of the most inhibitory mAbs, ZIKV-117, broadly neutralized infection of ZIKV strains corresponding to African, Asian, and American lineages...
November 7, 2016: Nature
https://www.readbyqxmd.com/read/27805547/cost-effectiveness-of-increasing-access-to-contraception-during-the-zika-virus-outbreak-puerto-rico-2016
#16
Rui Li, Katharine B Simmons, Jeanne Bertolli, Brenda Rivera-Garcia, Shanna Cox, Lisa Romero, Lisa M Koonin, Miguel Valencia-Prado, Nabal Bracero, Denise J Jamieson, Wanda Barfield, Cynthia A Moore, Cara T Mai, Lauren C Korhonen, Meghan T Frey, Janice Perez-Padilla, Ricardo Torres-Muñoz, Scott D Grosse
We modeled the potential cost-effectiveness of increasing access to contraception in Puerto Rico during a Zika virus outbreak. The intervention is projected to cost an additional $33.5 million in family planning services and is likely to be cost-saving for the healthcare system overall. It could reduce Zika virus-related costs by $65.2 million ($2.8 million from less Zika virus testing and monitoring and $62.3 million from avoided costs of Zika virus-associated microcephaly [ZAM]). The estimates are influenced by the contraception methods used, the frequency of ZAM, and the lifetime incremental cost of ZAM...
January 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27805221/analysis-of-worldwide-sequence-mutations-in-zika-virus-proteins-e-ns1-ns3-and-ns5-from-a-structural-point-of-view
#17
C F Baez, V A Barel, A M T de Souza, C R Rodrigues, R B Varella, N Cirauqui
Zika virus (ZIKV) is an emergent arbovirus that has attracted attention in the last year as a possible causative agent of congenital malformation; it shows a remarkably increased microcephaly risk during otherwise healthy pregnancies. We present here an analysis of all ZIKV sequences available in Genbank up to April 2016, studying the mutations in the whole polyprotein and their possible structural implications for the proteins E, NS1, NS3 and NS5. This study suggests that microcephaly is not a consequence of any particular amino acid substitution but, conceivably, is a feature of ZIKV itself...
November 2, 2016: Molecular BioSystems
https://www.readbyqxmd.com/read/27787288/family-planning-and-the-zika-era
#18
Lisa M Goldthwaite, Griselda Velasquez
PURPOSE OF REVIEW: To review the current evidence regarding the impact of the Zika virus epidemic on pregnancy and the implications for family planning and reproductive health services for women in affected countries. RECENT FINDINGS: In the past 2 years, over the course of the Zika epidemic, much has been learned about the virus. Specifically in regard to pregnancy, a causative relationship has been established between the Zika virus and adverse fetal outcomes, and sexual transmission of the virus has been documented...
December 2016: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27776026/zika-virus-and-its-impact-on-pregnancy
#19
Jan M Kriebs
No abstract text is available yet for this article.
October 2016: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/27766638/the-difficult-design-of-epidemiologic-studies-on-zika-virus-and-pregnancy
#20
Emily W Harville, Fernando A Althabe, Gérard Bréart, Pierre Buekens
No abstract text is available yet for this article.
November 2016: Paediatric and Perinatal Epidemiology
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