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Sign UpZika virus in pregnancy
• keyword#1
Victor S Santos, Sheila J G Oliveira, Ricardo Q Gurgel, Dorothy R R Lima, Cliomar A Dos Santos, Paulo R S Martins-Filho
Recent studies have demonstrated an association between congenital Zika virus (ZIKV) infection and microcephaly; however, to date, there have been no reports on the consequences of ZIKV infection on fetuses in twin pregnancies. Herein, we reported on the first case of a monochorionic diamniotic (MCDA) twin pregnancy having ZIKV-related microcephaly. Our findings suggested that, in an MCDA twin pregnancy, the ZIKV may cause infection in both fetuses, resulting in severe abnormalities in the central nervous system due to neural cell destruction and the disruption of the normal development processes of the brain...
July 2017: American Journal of Tropical Medicine and Hygiene
#2
Abbey B Berenson, Ha N Trinh, Jacqueline M Hirth, Fangjian Guo, Erika L Fuchs, Scott C Weaver
We administered an anonymous survey to assess knowledge, attitudes, and prevention practices related to the Zika virus among pregnant women residing in Texas. Multivariate logistic regression models controlling for age, race/ethnicity, education, and number of years in the United States assessed differences between women born in outbreak areas (N = 390) versus those born in the United States (N = 249). Results demonstrated that most women wanted more information on the Zika virus and desired to obtain it from their physician...
July 2017: American Journal of Tropical Medicine and Hygiene
#3
Andrea A Zin, Irena Tsui, Julia Rossetto, Zilton Vasconcelos, Kristina Adachi, Stephanie Valderramos, Umme-Aiman Halai, Marcos Vinicius da Silva Pone, Sheila Moura Pone, Joel Carlos Barros Silveira Filho, Mitsue S Aibe, Ana Carolina C da Costa, Olivia A Zin, Rubens Belfort, Patricia Brasil, Karin Nielsen-Saines, Maria Elisabeth Lopes Moreira
Importance: Current guidelines recommend screening eye examinations for infants with microcephaly or laboratory-confirmed Zika virus infection but not for all infants potentially exposed to Zika virus in utero. Objective: To evaluate eye findings in a cohort of infants whose mothers had polymerase chain reaction-confirmed Zika virus infection during pregnancy. Design, Setting, and Participants: In this descriptive case series performed from January 2 through October 30, 2016, infants were examined from birth to 1 year of age by a multidisciplinary medical team, including a pediatric ophthalmologist, from Fernandes Figueira Institute, a Ministry of Health referral center for high-risk pregnancies and infectious diseases in children in Rio de Janeiro, Brazil...
July 17, 2017: JAMA Pediatrics
#4
Justin M Richner, Brett W Jagger, Chao Shan, Camila R Fontes, Kimberly A Dowd, Bin Cao, Sunny Himansu, Elizabeth A Caine, Bruno T D Nunes, Daniele B A Medeiros, Antonio E Muruato, Bryant M Foreman, Huanle Luo, Tian Wang, Alan D Barrett, Scott C Weaver, Pedro F C Vasconcelos, Shannan L Rossi, Giuseppe Ciaramella, Indira U Mysorekar, Theodore C Pierson, Pei-Yong Shi, Michael S Diamond
The emergence of Zika virus (ZIKV) and its association with congenital malformations has prompted the rapid development of vaccines. Although efficacy with multiple viral vaccine platforms has been established in animals, no study has addressed protection during pregnancy. We tested in mice two vaccine platforms, a lipid nanoparticle-encapsulated modified mRNA vaccine encoding ZIKV prM and E genes and a live-attenuated ZIKV strain encoding an NS1 protein without glycosylation, for their ability to protect against transmission to the fetus...
July 13, 2017: Cell
#5
Robyn S Klein
Infection with Zika virus (ZIKV) during pregnancy may cause severe developmental defects in the human brain via unknown mechanisms. In a recent issue of Science, Chavali et al. (2017) identified a neural progenitor cell (NPC)-specific RNA binding protein that may underlie the high levels of ZIKV replication and apoptosis observed in these cells during congenital infections.
July 12, 2017: Cell Host & Microbe
#6
Rebecca Shaw, Michaela Simmons, Corrine Nelson, Brooke Bachelor, Shant Adamian, Ana Frausto
Zika virus infection during pregnancy is linked with adverse pregnancy and birth outcomes.(1,2) Therefore, women and their partners need education about the complications of Zika virus and reliable contraception in the context of this global health concern. This article is protected by copyright. All rights reserved.
July 11, 2017: International Journal of Gynaecology and Obstetrics
#7
Bin Cao, Lindsay A Parnell, Michael S Diamond, Indira U Mysorekar
Zika virus (ZIKV) infection during pregnancy leads to devastating fetal outcomes, including intrauterine growth restriction and microcephaly. Greater understanding of mechanisms underlying ZIKV maternal-fetal transmission is needed to develop new therapeutic interventions. Here, we define an important role for the autophagy pathway in ZIKV vertical transmission. ZIKV infection induced autophagic activity in human trophoblasts and pharmacological inhibition limited ZIKV infectivity. Furthermore, deficiency in an essential autophagy gene, Atg16l1, in mice limited ZIKV vertical transmission and placental and fetal damage and overall improved placental and fetal outcomes...
July 10, 2017: Journal of Experimental Medicine
#8
Isabelle Eperon, Manon Vouga, Manuel Schibler, David Baud, Gilles Eperon
Since early 2015, the Zika virus epidemic has spread rapidly through South America and the Caribbean and the first cases of local transmission have just been reported in Florida. Maternal infection during pregnancy can cause serious birth defects. Pregnant women and their partners should avoid travelling to areas of Zika epidemic.
October 26, 2016: Revue Médicale Suisse
#9
Paula Hurtado-Villa, Angie K Puerto, Salomé Victoria, Gloria Gracia, Lesly Guasmayán, Patricia Arce, Gilberto Álvarez, Esperanza Blandón, Nubia Rengifo, Jorge A Holguín, Alexander Durán, Ignacio Zarante
Zika virus infection during pregnancy is now known to cause congenital microcephaly and severe brain defects. Colombia has been experiencing an epidemic wave of Zika infection, starting approximately in October 2015. Here we document the trends of microcephaly and severe CNS malformations in two major cities in Colombia from 2012 through 2016, tracking the epidemiologic curve from before through the major Zika epidemic so far. METHODS: The study included neural tube defects (anencephaly, spina bifida, encephalocele), holoprosencephaly, and hydrocephaly...
July 1, 2017: Pediatric Infectious Disease Journal
#10
Nathalie Auger, Caroline Quach, Jessica Healy-Profitós, Anne-Marie Lowe, Laura Arbour
OBJECTIVE: We assessed baseline prevalence, risk factors and outcomes of microcephaly in a large population of neonates. DESIGN: Retrospective cohort study. SETTING: All hospitals in the province of Quebec, Canada. PARTICIPANTS: 794 microcephalic and 1 944 010 non-microcephalic infants born between 1989 and 2012. MAIN OUTCOME MEASURES: Baseline prevalence of microcephaly and occurrence of other congenital anomalies...
July 4, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
#11
Eduardo L V Silveira, Kenneth A Rogers, Sanjeev Gumber, Praveen Amancha, Peng Xiao, Shawna M Woollard, Siddappa N Byrareddy, Mauro Martins Teixeira, Francois Villinger
Zika virus (ZIKV) is a mosquito-borne and sexually transmitted flavivirus that is associated with fetal CNS-damaging malformations during pregnancy in humans. This study documents the viral kinetics and immune responses in rhesus macaques infected with a clinical ZIKV Brazilian isolate. We evaluated the viral kinetics and immune responses induced after an i.v. infection with a Brazilian ZIKV clinical isolate (HS-2015-BA-01) in rhesus macaques for up to 142 d. ZIKV-specific Ab-secreting cells, germinal center reactions, and monocyte, dendritic cell, NK, and T cell frequencies were monitored...
June 30, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
#12
Andrew D Maynard, Diana M Bowman, James G Hodge
Zika infection in pregnant women is associated with an elevated probability of giving birth to a child with microcephaly and multiple other disabilities. Public health messaging on Zika prevention has predominantly targeted women who know they are pregnant or intend to become pregnant, but not teenage females for whom unintended pregnancy is more likely. Vulnerabilities among this population to reproductive risks associated with Zika are further amplified by restrictive abortion laws in several Zika-impacted states...
December 2016: Journal of Law, Medicine & Ethics: a Journal of the American Society of Law, Medicine & Ethics
#13
Vanessa van der Linden, Hélio van der Linden, Mariana de Carvalho Leal, Epitacio Leite Rolim, Ana van der Linden, Maria de Fátima Viana Vasco Aragão, Alessandra Mertens Brainer-Lima, Danielle Di Cavalcanti Sousa Cruz, Liana O Ventura, Telma Lúcia Tabosa Florêncio, Marli Tenório Cordeiro, Silvio da Silva Caudas, Regina Coeli Ramos
Congenital Zika syndrome is an emergent cause of a congenital infectious disorder, resulting in severe damage to the central nervous system and microcephaly. Despite advances in understanding the pathophysiology of the disease, we still do not know all the mechanisms enrolled in the vertical transmission of the virus. As has already been reported in other types of congenital infectious disorders in dizygotic twin pregnancies, it is possible that the virus affects only one of the fetuses. In this article, we report on two cases of twin pregnancies exposed to the Zika virus, but with only one of the fetuses affected with microcephaly and brain damage...
June 2017: Arquivos de Neuro-psiquiatria
#14
Edecio Cunha-Neto, Daniela S Rosa, Paul E Harris, Tim Olson, Alex Morrow, Serban Ciotlos, Charles V Herst, Reid Martin Rubsamen
The threat posed by severe congenital abnormalities related to Zika virus (ZKV) infection during pregnancy has turned development of a ZKV vaccine into an emergency. Recent work suggests that the cytotoxic T lymphocyte (CTL) response to infection is an important defense mechanism in response to ZKV. Here, we develop the rationale and strategy for a new approach to developing cytotoxic T lymphocyte (CTL) vaccines for ZKV flavivirus infection. The proposed approach is based on recent studies using a protein structure computer model for HIV epitope selection designed to select epitopes for CTL attack optimized for viruses that exhibit antigenic drift...
2017: Frontiers in Immunology
#15
Wanderson Kleber de Oliveira, Giovanny Vinícius Araújo de França, Eduardo Hage Carmo, Bruce Bartholow Duncan, Ricardo de Souza Kuchenbecker, Maria Inês Schmidt
BACKGROUND: On Nov 11, 2015, the Brazilian Ministry of Health declared a Public Health Emergency of National Concern in response to an increased number of microcephaly cases, possibly related to previous Zika virus outbreaks. We describe the course of the dual epidemics of the Zika virus infection during pregnancy and microcephaly in Brazil up to Nov 12, 2016, the first anniversary of this declaration. METHODS: We used secondary data for Zika virus and microcephaly cases obtained through the Brazilian Ministry of Health's surveillance systems from Jan 1, 2015, to Nov 12, 2016...
June 21, 2017: Lancet
#16
Sarah Reagan-Steiner, Regina Simeone, Elizabeth Simon, Julu Bhatnagar, Titilope Oduyebo, Rebecca Free, Amy M Denison, Demi B Rabeneck, Sascha Ellington, Emily Petersen, Joy Gary, Gillian Hale, M Kelly Keating, Roosecelis B Martines, Atis Muehlenbachs, Jana Ritter, Ellen Lee, Alexander Davidson, Erin Conners, Sarah Scotland, Kayleigh Sandhu, Andrea Bingham, Elizabeth Kassens, Lou Smith, Kirsten St George, Nina Ahmad, Mary Tanner, Suzanne Beavers, Brooke Miers, Kelley VanMaldeghem, Sumaiya Khan, Ingrid Rabe, Carolyn Gould, Dana Meaney-Delman, Margaret A Honein, Wun-Ju Shieh, Denise J Jamieson, Marc Fischer, Sherif R Zaki
Zika virus infection during pregnancy can cause congenital microcephaly and brain abnormalities (1), and detection of Zika virus RNA in clinical and tissue specimens can provide definitive laboratory evidence of recent Zika virus infection. Whereas duration of viremia is typically short, prolonged detection of Zika virus RNA in placental, fetal, and neonatal brain tissue has been reported and can provide key diagnostic information by confirming recent Zika virus infection (2). In accordance with recent guidance (3,4), CDC provides Zika virus testing of placental and fetal tissues in clinical situations where this information could add diagnostic value...
June 23, 2017: MMWR. Morbidity and Mortality Weekly Report
#17
Anna Durbin, Annelies Wilder-Smith
The devastating consequences of congenital Zika virus (ZIKV) infection led to a global response directed toward a better understanding of the epidemiology and pathogenesis of ZIKV and to efforts at vaccine development. As a result, there are currently 45 ZIKV vaccine candidates in development. Areas covered: Both traditional (purified inactivated, live attenuated, viral-vectored, recombinant sub-unit) and novel (DNA, self-replicating RNA, mRNA) vaccine platforms are being utilized. For emergency use, vaccines that are appropriate for women of child-bearing age (including pregnant women) are being developed...
June 21, 2017: Expert Review of Vaccines
#18
Carrie K Shapiro-Mendoza, Marion E Rice, Romeo R Galang, Anna C Fulton, Kelley VanMaldeghem, Miguel Valencia Prado, Esther Ellis, Magele Scott Anesi, Regina M Simeone, Emily E Petersen, Sascha R Ellington, Abbey M Jones, Tonya Williams, Sarah Reagan-Steiner, Janice Perez-Padilla, Carmen C Deseda, Andrew Beron, Aifili John Tufa, Asher Rosinger, Nicole M Roth, Caitlin Green, Stacey Martin, Camille Delgado Lopez, Leah deWilde, Mary Goodwin, H Pamela Pagano, Cara T Mai, Carolyn Gould, Sherif Zaki, Leishla Nieves Ferrer, Michelle S Davis, Eva Lathrop, Kara Polen, Janet D Cragan, Megan Reynolds, Kimberly B Newsome, Mariam Marcano Huertas, Julu Bhatangar, Alma Martinez Quiñones, John F Nahabedian, Laura Adams, Tyler M Sharp, W Thane Hancock, Sonja A Rasmussen, Cynthia A Moore, Denise J Jamieson, Jorge L Munoz-Jordan, Helentina Garstang, Afeke Kambui, Carolee Masao, Margaret A Honein, Dana Meaney-Delman
Pregnant women living in or traveling to areas with local mosquito-borne Zika virus transmission are at risk for Zika virus infection, which can lead to severe fetal and infant brain abnormalities and microcephaly (1). In February 2016, CDC recommended 1) routine testing for Zika virus infection of asymptomatic pregnant women living in areas with ongoing local Zika virus transmission at the first prenatal care visit, 2) retesting during the second trimester for women who initially test negative, and 3) testing of pregnant women with signs or symptoms consistent with Zika virus disease (e...
June 16, 2017: MMWR. Morbidity and Mortality Weekly Report
#19
Denise V D'Angelo, Beatriz Salvesen von Essen, Mark J Lamias, Holly Shulman, Wanda I Hernandez-Virella, Aspy J Taraporewalla, Manuel I Vargas, Leslie Harrison, Sascha R Ellington, Leslianne Soto, Tanya Williams, Aurea Rodriguez, Carrie K Shapiro-Mendoza, Brenda Rivera, Shanna Cox, Karen Pazol, Marion E Rice, Deborah L Dee, Lisa Romero, Eva Lathrop, Wanda Barfield, Ruben A Smith, Denise J Jamieson, Margaret A Honein, Carmen Deseda, Lee Warner
Zika virus infection during pregnancy remains a serious health threat in Puerto Rico. Infection during pregnancy can cause microcephaly, brain abnormalities, and other severe birth defects (1). From January 1, 2016 through March 29, 2017, Puerto Rico reported approximately 3,300 pregnant women with laboratory evidence of possible Zika virus infection (2). There is currently no vaccine or intervention to prevent the adverse effects of Zika virus infection during pregnancy; therefore, prevention has been the focus of public health activities, especially for pregnant women (3)...
June 9, 2017: MMWR. Morbidity and Mortality Weekly Report
#20
Patrick S Ramsey
This month we focus on current research in Zika virus in pregnancy. Dr. Ramsey discusses four recent publications that are concluded with a "bottom line" that is a take-home message. A complete reference for each can be found in on this page along with direct links to abstracts.
July 2017: Obstetrics and Gynecology
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