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Influenza and pregnancy

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https://www.readbyqxmd.com/read/28930786/the-relationship-between-2009-pandemic-h1n1-influenza-during-pregnancy-and-preterm-birth-a-population-based-cohort-study
#1
Deshayne B Fell, Robert W Platt, Olga Basso, Kumanan Wilson, Jay S Kaufman, David L Buckeridge, Jeffrey C Kwong
BACKGROUND: Previous studies of maternal influenza illness and preterm birth have yielded inconsistent results. Our objective was to assess the association between 2009 pandemic H1N1 (pH1N1) influenza during pregnancy and preterm birth in a large obstetrical population. METHODS: We linked a province-wide birth registry with health administrative databases to identify influenza-coded hospitalizations, emergency department visits, or physician visits among pregnant women during the 2009 H1N1 pandemic (our proxy for clinical pH1N1 influenza illness)...
September 19, 2017: Epidemiology
https://www.readbyqxmd.com/read/28923425/the-influence-of-probiotics-on-vaccine-responses-a-systematic-review
#2
REVIEW
Petra Zimmermann, Nigel Curtis
The immunomodulatory effects of probiotics offer a relatively cheap means to improve vaccine efficacy and duration of protection. We systematically reviewed prospective randomised placebo-controlled studies in humans that have investigated the influence of probiotics on humoral vaccine responses. We found 26 studies, involving 3812 participants, investigating the use of 40 different probiotic strains on the efficacy of 17 different vaccines. A beneficial effect of probiotics was reported in about half of the studies...
September 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28922318/vaccination-during-pregnancy-first-line-of-defense-for-expecting-mothers-and-vulnerable-young-infants
#3
Casidhe-Nicole Bethancourt, Tiffany L Wang, Joseph A Bocchini
PURPOSE OF REVIEW: Maternal vaccination is a well-tolerated and effective way to protect mothers, their developing fetuses, and their young infants from infectious diseases. Although influenza vaccine and diphtheria, tetanus, and acellular pertussis (Tdap) vaccine are recommended for all pregnant women, uptake rates in the United States remain low. This review will focus on the rationale, scientific evidence, and perceptions of vaccination during pregnancy. RECENT FINDINGS: Recent studies show that administration of influenza and Tdap vaccines during pregnancy is well tolerated and provides protection to the pregnant woman, her fetus, and young infant...
September 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28917536/birth-outcomes-following-immunization-of-pregnant-women-with-pandemic-h1n1-influenza-vaccine-2009-2010
#4
Abigail Eaton, Ned Lewis, Bruce Fireman, John Hansen, Roger Baxter, Julianne Gee, Nicola P Klein
BACKGROUND: Following the H1N1 influenza pandemic in 2009, pregnant women were recommended to receive both seasonal (TIV) and H1N1 influenza vaccines. This study presents incidence of adverse birth and pregnancy outcomes among a population of pregnant women immunized with TIV and H1N1 vaccines at Kaiser Permanente Northern California during 2009-2010. METHODS: We telephone surveyed pregnant Kaiser Permanente Northern California members to assess non-medically-attended reactions following H1N1, TIV or both vaccines during 2009-2010 (n=5365) in a separate study...
September 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28917295/association-of-spontaneous-abortion-with-receipt-of-inactivated-influenza-vaccine-containing-h1n1pdm09-in-2010-11-and-2011-12
#5
James G Donahue, Burney A Kieke, Jennifer P King, Frank DeStefano, Maria A Mascola, Stephanie A Irving, T Craig Cheetham, Jason M Glanz, Lisa A Jackson, Nicola P Klein, Allison L Naleway, Eric Weintraub, Edward A Belongia
INTRODUCTION: Inactivated influenza vaccine is recommended in any stage of pregnancy, but evidence of safety in early pregnancy is limited, including for vaccines containing A/H1N1pdm2009 (pH1N1) antigen. We sought to determine if receipt of vaccine containing pH1N1 was associated with spontaneous abortion (SAB). METHODS: We conducted a case-control study over two influenza seasons (2010-11, 2011-12) in the Vaccine Safety Datalink. Cases had SAB and controls had live births or stillbirths and were matched on site, date of last menstrual period, and age...
September 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28916522/viral-infection-sensitizes-human-fetal-membranes-to-bacterial-lipopolysaccharide-by-mertk-inhibition-and-inflammasome-activation
#6
Sarah N Cross, Julie A Potter, Paulomi Aldo, Ja Young Kwon, Mary Pitruzzello, Mancy Tong, Seth Guller, Carla V Rothlin, Gil Mor, Vikki M Abrahams
Chorioamnionitis, premature rupture of fetal membranes (FMs), and subsequent preterm birth are associated with local infection and inflammation, particularly IL-1β production. Although bacterial infections are commonly identified, other microorganisms may play a role in the pathogenesis. Because viral pandemics, such as influenza, Ebola, and Zika, are becoming more common, and pregnant women are at increased risk for associated complications, this study evaluated the impact that viral infection had on human FM innate immune responses...
September 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28891463/epidemiology-of-seasonal-influenza-infection-in-pregnant-women-and-its-impact-on-birth-outcomes
#7
A K Regan, H C Moore, S G Sullivan, N DE Klerk, P V Effler
Seasonal influenza can cause significant morbidity in pregnant women. Much of the existing epidemiological evidence on influenza during pregnancy has focused on the 2009 A/H1N1 pandemic. To measure the epidemiological characteristics of seasonal influenza infection among pregnant women and the impact on infant health, a cohort of 86 779 pregnancies during the influenza season (2012-2014) was established using probabilistic linkage of notifiable infectious disease, hospital admission, and birth information. A total of 192 laboratory-confirmed influenza infections were identified (2·2 per 1000 pregnancies), 14·6% of which were admitted to hospital...
September 11, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28883971/vaccination-of-hiv-infected-pregnant-women-implications-for-protection-of-their-young-infants
#8
REVIEW
Ziyaad Dangor, Marta C Nunes, Gaurav Kwatra, Sanjay G Lala, Shabir A Madhi
BACKGROUND: The prevention of mother to child transmission of HIV has resulted in reduced burden of pediatric HIV-infection, but the prevalence of maternal HIV infection remains high in sub-Saharan African countries. HIV-exposed-uninfected infants have an increased risk of morbidity and mortality due to infectious diseases than HIV-unexposed infants, particularly during the first six months of life, which in part might be due to lower levels of pathogen-specific protective antibodies acquired transplacentally from their mothers...
2017: Tropical Diseases, Travel Medicine and Vaccines
https://www.readbyqxmd.com/read/28870657/use-of-biologic-therapy-by-pregnant-women-with-inflammatory-bowel-disease-does-not-affect-infant-response-to-vaccines
#9
Dawn B Beaulieu, Ashwin N Ananthakrishnan, Christopher Martin, Russell D Cohen, Sunanda V Kane, Uma Mahadevan
BACKGROUND & AIMS: In women with inflammatory bowel diseases (IBD), exposure to immunomodulator or biologic therapy has not been associated with adverse events during pregnancy or outcomes of newborns. We investigated whether exposure of patients to these agents during pregnancy affects serologic responses to vaccines in newborns. METHODS: We collected data from the Pregnancy in IBD and Neonatal Outcomes registry, which records outcomes of pregnant women with diagnosis of IBD receiving care at multiple centers in the United States, from 2007 - 2016...
September 1, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28867508/influenza-epidemiology-and-immunization-during-pregnancy-final-report-of-a-world-health-organization-working-group
#10
Deshayne B Fell, Eduardo Azziz-Baumgartner, Michael G Baker, Maneesh Batra, Julien Beauté, Philippe Beutels, Niranjan Bhat, Zulfiqar A Bhutta, Cheryl Cohen, Bremen De Mucio, Bradford D Gessner, Michael G Gravett, Mark A Katz, Marian Knight, Vernon J Lee, Mark Loeb, Johannes M Luteijn, Helen Marshall, Harish Nair, Kevin Pottie, Rehana A Salam, David A Savitz, Suzanne J Serruya, Becky Skidmore, Justin R Ortiz
From 2014 to 2017, the World Health Organization convened a working group to evaluate influenza disease burden and vaccine efficacy to inform estimates of maternal influenza immunization program impact. The group evaluated existing systematic reviews and relevant primary studies, and conducted four new systematic reviews. There was strong evidence that maternal influenza immunization prevented influenza illness in pregnant women and their infants, although data on severe illness prevention were lacking. The limited number of studies reporting influenza incidence in pregnant women and infants under six months had highly variable estimates and underrepresented low- and middle-income countries...
August 31, 2017: Vaccine
https://www.readbyqxmd.com/read/28867143/text4baby-influenza-messaging-and-influenza-vaccination-among-pregnant-women
#11
Jessica A Bushar, Juliette S Kendrick, Helen Ding, Carla L Black, Stacie M Greby
INTRODUCTION: Pregnant women are at risk for severe influenza-related complications; however, only 52% reported receiving an influenza vaccination during the 2013-2014 influenza season. Text4baby, a free national text service, provides influenza vaccination education and reminders to pregnant women. This study examined reported influenza vaccination during pregnancy among Text4baby participants who reported receiving influenza messages and women who reported never participating in Text4baby...
August 28, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28852864/epidemiological-factors-related-to-hospitalization-due-to-influenza-in-children-below-6%C3%A2-months-of-age
#12
J Bustamante, I Calzado, T Sainz, C Calvo, T Del Rosal, A Méndez-Echevarría
The aim of this study was to address the epidemiological factors associated to hospital admissions due to influenza in infants younger than 6 months. A case-control study was performed in a tertiary hospital in Spain. Cases were infants under 6 months of age without comorbidities who were admitted due to influenza between October 2010 and March 2015. Controls were healthy infants younger than 6 months who were hospitalized due to non-respiratory illness or non-infectious diseases (urinary tract infection was included as controls)...
August 29, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28826731/prevalence-of-vaccine-hesitancy-among-expectant-mothers-in-houston-texas
#13
Rachel M Cunningham, Charles G Minard, Danielle Guffey, Laurie S Swaim, Douglas J Opel, Julie A Boom
OBJECTIVE: Non-medical exemptions continue to rise due to increasing proportions of vaccine-hesitant parents. The proportion of expectant parents who are vaccine-hesitant is currently unknown. We assessed the prevalence of vaccine hesitancy among expectant parents receiving care at an obstetrics clinic in Houston, Texas. METHODS: We conducted a cross-sectional survey of expectant parents between 12 and 31 weeks gestation who received care at Texas Children's Pavilion for Women between July 2014 - September 2015...
August 4, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28822646/the-crucial-role-of-maternal-care-providers-as-vaccinators-for-pregnant-women
#14
Maria Luz Vilca, Susanna Esposito
Vaccination during pregnancy is increasingly being recognised internationally a useful means of preventing illness in pregnant women and their newborns. It has been used since the 1960s, when it was found that tetanus vaccine was highly effective in preventing neonatal tetanus, but interest has greatly increased over the last few years. As new data become available showing the numerous benefits of maternal immunisation and its potential for improving maternal and neonatal health in relation to a number of infectious conditions, it is being increasingly incorporated into the national vaccination programmes around the world...
August 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28818474/estimating-influenza-disease-burden-among-pregnant-women-application-of-self-control-method
#15
Satoko Ohfuji, Masaaki Deguchi, Daisuke Tachibana, Masayasu Koyama, Tetsu Takagi, Takayuki Yoshioka, Akinori Urae, Wakaba Fukushima, Yoshio Hirota
To evaluate influenza disease burden among pregnant women, an epidemiological study using the self-control method was conducted. Study subjects were 12,838 pregnant women who visited collaborating maternity hospitals and clinics in Osaka Prefecture, Japan, before the 2013/14 influenza season. As a study outcome, hospitalization due to respiratory illnesses between the 2010/11 and 2013/14 seasons was collected from each study subject through a baseline survey at the time of recruitment and a second survey after the 2013/14 season...
August 24, 2017: Vaccine
https://www.readbyqxmd.com/read/28811050/vaccine-decision-making-begins-in-pregnancy-correlation-between-vaccine-concerns-intentions-and-maternal-vaccination-with-subsequent-childhood-vaccine-uptake
#16
M H Danchin, J Costa-Pinto, K Atwell, H Willaby, K Wiley, M Hoq, J Leask, K P Perrett, Jacinta O'Keefe, M L Giles, H Marshall
INTRODUCTION: Maternal and childhood vaccine decision-making begins prenatally. Amongst pregnant Australian women we aimed to ascertain vaccine information received, maternal immunisation uptake and attitudes and concerns regarding childhood vaccination. We also aimed to determine any correlation between a) intentions and concerns regarding childhood vaccination, (b) concerns about pregnancy vaccination, (c) socioeconomic status (SES) and (d) uptake of influenza and pertussis vaccines during pregnancy and routine vaccines during childhood...
August 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28777109/influenza-immunization-of-pregnant-women-in-resource-constrained-countries-an-update-for-funding-and-implementation-decisions
#17
Justin R Ortiz, Kathleen M Neuzil
PURPOSE OF REVIEW: In 2018, Gavi, the Vaccine Alliance, is expected to review the strategy of maternal influenza immunization for potential investment in low-income countries. RECENT FINDINGS: Clinical trial data confirm the efficacy of maternal influenza immunization to prevent influenza disease in both mothers and their infants during the first months of life. Trial and observational data indicate no significant adverse events in mothers or newborns. High-quality disease burden data, particularly for seasonal influenza in low-income and middle-income countries, are limited...
August 4, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28758270/prescription-drug-use-during-pregnancy-in-france-a-study-from-the-national-health-insurance-permanent-sample
#18
Romain Demailly, Sylvie Escolano, Catherine Quantin, Pascale Tubert-Bitter, Ismaïl Ahmed
PURPOSE: To provide an up-to-date account of drug prescription during pregnancy in France from 2011 to 2014 using the permanent sample of the French national computerized healthcare database and with a focus on recommended supplementations, fetotoxic drugs and teratogenic drugs. METHODS: All pregnancies identified by the International Classification of Diseases, 10th Revision codes list in the hospitalization database, lasting more than 9 weeks of amenorrhea and whose delivery occurred between 01/01/2011 and 12/31/2014, were included...
July 30, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28735583/fever-and-infections-during-pregnancy-and-psychosis-like-experiences-in-the-offspring-at-age-11-a-prospective-study-within-the-danish-national-birth-cohort
#19
J W Dreier, G Berg-Beckhoff, A M N Andersen, E Susser, M Nordentoft, K Strandberg-Larsen
BACKGROUND: Maternal exposures to fever and infections in pregnancy have been linked to subsequent psychiatric morbidity in the child. This study examined whether fever and common infections in pregnancy were associated with psychosis-like experiences (PLEs) in the child. METHODS: A longitudinal study of 46 184 children who participated in the 11-year follow-up of the Danish National Birth Cohort was conducted. Pregnant women were enrolled between 1996 and 2002 and information on fever, genitourinary infections, respiratory tract infection, and influenza-like illness during pregnancy was prospectively collected in two interviews during pregnancy...
July 24, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28726613/human-metapneumovirus-and-other-respiratory-viral-infections-during-pregnancy-and-birth-nepal
#20
Jennifer L Lenahan, Janet A Englund, Joanne Katz, Jane Kuypers, Anna Wald, Amalia Magaret, James M Tielsch, Subarna K Khatry, Stephen C LeClerq, Laxman Shrestha, Mark C Steinhoff, Helen Y Chu
Human metapneumovirus (HMPV) is a respiratory virus that can cause severe lower respiratory tract disease and even death, primarily in young children. The incidence and characteristics of HMPV have not been well described in pregnant women. As part of a trial of maternal influenza immunization in rural southern Nepal, we conducted prospective, longitudinal, home-based active surveillance for febrile respiratory illness during pregnancy through 6 months postpartum. During 2011-2014, HMPV was detected in 55 of 3,693 women (16...
August 2017: Emerging Infectious Diseases
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