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Maternal influenza

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https://www.readbyqxmd.com/read/28522338/year-round-influenza-immunisation-during-pregnancy-in-nepal-a-phase-4-randomised-placebo-controlled-trial
#1
Mark C Steinhoff, Joanne Katz, Janet A Englund, Subarna K Khatry, Laxman Shrestha, Jane Kuypers, Laveta Stewart, Luke C Mullany, Helen Y Chu, Steven C LeClerq, Naoko Kozuki, Monica McNeal, Adriana M Reedy, James M Tielsch
BACKGROUND: Influenza immunisation during pregnancy is recommended but not widely implemented in some low-income regions. We assessed the safety and efficacy in mothers and infants of year-round maternal influenza immunisation in Nepal, where influenza viruses circulate throughout the year. METHODS: In this phase 4, randomised, placebo-controlled trial, we enrolled two consecutive sequential annual cohorts of pregnant women from the Sarlahi district in southern Nepal...
May 15, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28522337/maternal-influenza-immunisation-to-reduce-influenza-infections-and-low-birthweight-in-infants-in-resource-limited-countries
#2
Paul Loubet, Odile Launay
No abstract text is available yet for this article.
May 15, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28520789/antigen-specific-immunoglobulin-variable-region-sequencing-measures-humoral-immune-response-to-vaccination-in-the-equine-neonate
#3
Rebecca L Tallmadge, Steven C Miller, Stephen A Parry, Maria Julia B Felippe
The value of prophylactic neonatal vaccination is challenged by the interference of passively transferred maternal antibodies and immune competence at birth. Taken our previous studies on equine B cell ontogeny, we hypothesized that the equine neonate generates a diverse immunoglobulin repertoire in response to vaccination, independently of circulating maternal antibodies. In this study, equine neonates were vaccinated with 3 doses of keyhole limpet hemocyanin (KLH) or equine influenza vaccine, and humoral immune responses were assessed using antigen-specific serum antibodies and B cell Ig variable region sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28510067/immunization-during-pregnancy-impact-on-the-infant
#4
REVIEW
Kirsten P Perrett, Terry M Nolan
Maternal immunization has undergone a paradigm shift in recent years, as women and healthcare providers accept and recognize the benefits of this strategy not only for the pregnant woman but also for the developing fetus and young infant. This article reviews the evidence for active immunization during pregnancy, with an emphasis on perinatal and infant outcomes. Current recommendations for immunization during pregnancy are presented, with particular focus on the routinely recommended vaccines during pregnancy: influenza and Tdap (tetanus, diphtheria, and pertussis)...
May 16, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28495223/feasibility-of-text-message-influenza-vaccine-safety-monitoring-during-pregnancy
#5
Melissa S Stockwell, Maria Cano, Kathleen Jakob, Karen R Broder, Cynthia Gyamfi-Bannerman, Paula M Castaño, Paige Lewis, Angela Barrett, Oidda I Museru, Ormarys Castellanos, Philip S LaRussa
INTRODUCTION: The feasibility and accuracy of text messaging to monitor events after influenza vaccination throughout pregnancy and the neonatal period has not been studied, but may be important for seasonal and pandemic influenza vaccines and future maternal vaccines. METHODS: This prospective observational study was conducted during 2013-2014 and analyzed in 2015-2016. Enrolled pregnant women receiving inactivated influenza vaccination at a gestational age <20 weeks were sent text messages intermittently through participant-reported pregnancy end to request fever, health events, and neonatal outcomes...
May 2, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28483192/no-association-between-influenza-vaccination-during-pregnancy-and-adverse-birth-outcomes
#6
Ousseny Zerbo, Sharareh Modaressi, Berwick Chan, Kristin Goddard, Ned Lewis, Karin Bok, Bruce Fireman, Nicola P Klein, Roger Baxter
BACKGROUND: Pregnant women are recommended to receive inactivated influenza vaccination anytime during pregnancy. Studies have investigated the impact of influenza vaccination during pregnancy on birth outcomes and results on preterm birth have been inconsistent. METHODS: We conducted a retrospective cohort study among children born at a gestational age≥24weeks from January 1, 2010 to December 31, 2015 at Kaiser Permanente Northern California facilities (KPNC)...
May 31, 2017: Vaccine
https://www.readbyqxmd.com/read/28465095/association-of-influenza-vaccination-during-pregnancy-with-birth-outcomes-in-nicaragua
#7
Carmen S Arriola, Nancy Vasconez, Mark G Thompson, Sonja J Olsen, Ann C Moen, Joseph Bresee, Alba María Ropero
BACKGROUND: Studies have shown that influenza vaccination during pregnancy reduces the risk of influenza disease in pregnant women and their offspring. Some have proposed that maternal vaccination may also have beneficial effects on birth outcomes. In 2014, we conducted an observational study to test this hypothesis using data from two large hospitals in Managua, Nicaragua. METHODS: We conducted a retrospective cohort study to evaluate associations between influenza vaccination and birth outcomes...
April 29, 2017: Vaccine
https://www.readbyqxmd.com/read/28433705/maternal-immunisation-collaborating-with-mother-nature
#8
REVIEW
Arnaud Marchant, Manish Sadarangani, Mathieu Garand, Nicolas Dauby, Valerie Verhasselt, Lenore Pereira, Gordean Bjornson, Christine E Jones, Scott A Halperin, Kathryn M Edwards, Paul Heath, Peter J Openshaw, David W Scheifele, Tobias R Kollmann
Maternal immunisation has the potential to substantially reduce morbidity and mortality from infectious diseases after birth. The success of tetanus, influenza, and pertussis immunisation during pregnancy has led to consideration of additional maternal immunisation strategies to prevent group B streptococcus and respiratory syncytial virus infections, among others. However, many gaps in knowledge regarding the immunobiology of maternal immunisation prevent the optimal design and application of this successful public health intervention...
April 19, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28433704/pertussis-and-influenza-immunisation-during-pregnancy-a-landscape-review
#9
REVIEW
Bahaa Abu Raya, Kathryn M Edwards, David W Scheifele, Scott A Halperin
Immunisation during pregnancy is a relatively new strategy, and is currently limited to tetanus, pertussis, and influenza vaccines. None of these vaccines were developed specifically for use in pregnancy, but they provide an effective method of protecting mothers and young infants. In response to increases in pertussis morbidity and mortality among young infants, several countries have recommended universal tetanus, diphtheria, and acellular pertussis immunisation during pregnancy. Similarly, many countries recommend influenza immunisation during pregnancy to reduce the risk of disease for mother and infant...
April 19, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28418800/predictors-of-breastfeeding-initiation-and-maintenance-in-an-integrated-healthcare-setting
#10
Michelle L Henninger, Stephanie A Irving, Tia L Kauffman, Samantha K Kurosky, Kathryn Rompala, Mark G Thompson, Leslie Z Sokolow, Lyndsay Ammon Avalos, Sarah W Ball, Pat Shifflett, Allison L Naleway
BACKGROUND: The American Academy of Pediatrics recommends exclusive breastfeeding to age 6 months. Although breastfeeding rates in the United States have been increasing over time, further improvements are needed to meet Healthy People 2020 targets. Research aim: This study examined predictors of breastfeeding initiation and maintenance among a population of insured pregnant women. METHODS: Participants were 1,149 pregnant women enrolled in the Pregnancy and Influenza Project in two Kaiser Permanente regions in 2010-2011...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28404574/parasitic-infections-in-pregnancy-decrease-placental-transfer-of-anti-pneumococcal-antibodies
#11
Noah D McKittrick, David M Vu, Indu Malhotra, Charles H King, Francis Mutuku, A Desiree LaBeaud
Many factors can influence maternal placental antibody transfer to the fetus, which confers important immune protection to the newborn infant. However, little is known about the effect of maternal parasitic infection on placental antibody transfer. To investigate this, we selected, from a parent study of 576 pregnant Kenyan women, four groups of women with term deliveries (≥37 weeks), including uninfected women (N=30) and women with solo infections of malaria (N=30), hookworm (N=30), or schistosomiasis (N=10)...
April 12, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28398678/maternal-immunization
#12
Helen Y Chu, Janet A Englund
Pregnant women, neonates, and infants are at higher risk for severe infections due to vaccine-preventable diseases. Very young infants rarely respond well to vaccination due to poor immunogenicity and interference from maternal antibody. Maternal immunization protects the mother and fetus from disease and protects the infant through transplacental antibody transfer through the first 6 months of life. Currently, immunizations routinely recommended during pregnancy include inactivated influenza, tetanus toxoid, and acellular pertussis vaccines...
March 15, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28369245/re-detectable-risks-in-studies-of-the-fetal-benefits-of-maternal-influenza-vaccination
#13
Gaston De Serres, Danuta M Skowronski
No abstract text is available yet for this article.
May 1, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28359619/predictors-of-influenza-vaccination-in-the-u-s-among-children-9-13years-of-age
#14
Teresa M Imburgia, Kristin S Hendrix, Kelly L Donahue, Lynne A Sturm, Gregory D Zimet
BACKGROUND AND OBJECTIVES: U.S. estimates of seasonal influenza (flu) vaccine uptake in 2014-2015 were 62% for 5-12year olds, dropping to 47% for 13-17year olds. The Healthy People 2020 goal for these age groups is 80%. It is important to understand factors associated with influenza vaccination, especially for those ages where rates begin to decline. The objective of this study was to identify factors associated with influenza vaccination acceptance in 9-13year old children. METHODS: An online U...
March 27, 2017: Vaccine
https://www.readbyqxmd.com/read/28343772/report-of-the-who-technical-consultation-on-the-effect-of-maternal-influenza-and-influenza-vaccination-on-the-developing-fetus-montreal-canada-september-30-october-1-2015
#15
Deshayne B Fell, Zulfiqar A Bhutta, Jennifer A Hutcheon, Ruth A Karron, Marian Knight, Michael S Kramer, Arnold S Monto, Geeta K Swamy, Justin R Ortiz, David A Savitz
In 2012, the World Health Organization (WHO) released a position paper on influenza vaccination recommending that pregnant women have the highest priority for seasonal vaccination in countries where the initiation or expansion of influenza immunization programs is under consideration. Although the primary goal of the WHO recommendation is to prevent influenza illness in pregnant women, the potential benefits of maternal immunization in protecting young infants are also recognized. The extent to which maternal influenza vaccination may prevent adverse birth outcomes such as preterm birth or small-for-gestational-age birth, however, is unclear as available studies are in disagreement...
March 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28341114/measuring-maternal-tdap-and-influenza-vaccination-rates-comparison-of-two-population-based-methods
#16
Ruth Koepke, Stephanie L Schauer, Jeffrey P Davis
Pregnant women are routinely recommended to receive Tdap and influenza vaccines to prevent disease and complications among mothers and newborns. Monitoring population trends in maternal vaccination is important in order to evaluate the implementation of these recommendations and to identify pockets of need. We present two methods for measuring maternal vaccination among a state population and discuss the strengths and drawbacks of each method. First, we matched maternal information from records of Wisconsin births during 2013-2015 with maternal vaccination records in the Wisconsin Immunization Registry...
March 21, 2017: Vaccine
https://www.readbyqxmd.com/read/28278407/influenza-vaccination-coverage-among-pregnant-indigenous-women-in-the-northern-territory-of-australia
#17
Sarah A Moberley, Jolie Lawrence, Vanessa Johnston, Ross M Andrews
Pregnant Aboriginal and Torres Strait Islander women are at particular risk of severe illness and high attack rates of influenza infection. In Australia, routine seasonal influenza vaccination is currently strongly recommended for all pregnant women and women planning pregnancy, and is provided free of charge for all pregnant women. We sought to determine vaccination coverage, describe the trends and characteristics associated with influenza vaccine uptake and determine the validity of self-reported influenza vaccination in a population of Indigenous pregnant women who were participants of a vaccine trial, prior to and during the 2009 H1N1 influenza pandemic...
September 30, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28254223/seropositivity-of-influenza-a-h1ni-in-mothers-and-infants-following-maternal-vaccination-with-trivalent-seasonal-influenza-vaccine-after-the-2009-pandemic
#18
An-Shine Chao, Yao-Lung Chang, Anne Chao, Ting-Shu Wu, Lan-Yan Yang, Reyin Lian, Yhu-Chering Huang
OBJECTIVE: To assess H1N1 antibody titers between vaccinated and nonvaccinated maternal and cord blood sera after the 2009 pandemic. MATERIALS AND METHODS: Antibody titers were measured in maternal blood and cord sera from three groups of pregnant women in this prospective study. Group 1 comprised women who received a trivalent seasonal influenza vaccine before conception, Group 2 comprised women who received a single injection of monovalent H1N1 vaccine during pregnancy, and Group 3 comprised women who were nonvaccinated...
February 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28237252/effect-of-ebola-virus-disease-on-maternal-and-child-health-services-in-guinea-a-retrospective-observational-cohort-study
#19
Alexandre Delamou, Alison M El Ayadi, Sidikiba Sidibe, Therese Delvaux, Bienvenu S Camara, Sah D Sandouno, Abdoul H Beavogui, Georges W Rutherford, Junko Okumura, Wei-Hong Zhang, Vincent De Brouwere
BACKGROUND: The 2014 west African epidemic of Ebola virus disease posed a major threat to the health systems of the countries affected. We sought to quantify the consequences of Ebola virus disease on maternal and child health services in the highly-affected Forest region of Guinea. METHODS: We did a retrospective, observational cohort study of women and children attending public health facilities for antenatal care, institutional delivery, and immunisation services in six of seven health districts in the Forest region (Beyla, Guéckédou, Kissidougou, Lola, Macenta, and N'Zérékoré)...
April 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28237236/influenza-a-virus-in-swine-breeding-herds-combination-of-vaccination-and-biosecurity-practices-can-reduce-likelihood-of-endemic-piglet-reservoir
#20
L A White, M Torremorell, M E Craft
Recent modelling and empirical work on influenza A virus (IAV) suggests that piglets play an important role as an endemic reservoir. The objective of this study is to test intervention strategies aimed at reducing the incidence of IAV in piglets and ideally, preventing piglets from becoming exposed in the first place. These interventions include biosecurity measures, vaccination, and management options that swine producers may employ individually or jointly to control IAV in their herds. We have developed a stochastic Susceptible-Exposed-Infectious-Recovered-Vaccinated (SEIRV) model that reflects the spatial organization of a standard breeding herd and accounts for the different production classes of pigs therein...
March 1, 2017: Preventive Veterinary Medicine
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