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https://www.readbyqxmd.com/read/29167460/early-vaccination-protects-against-childhood-leukemia-a-systematic-review-and-meta-analysis
#1
Mostafa Ebraheem Morra, Nguyen Dang Kien, Ahmed Elmaraezy, Omar Ayman M Abdelaziz, Ahmed Lotfy Elsayed, Oday Halhouli, Ahmed Mosaad Montasr, Tran Le-Huy Vu, Chau Ho, Amr Sayed Foly, Anh Phan Phi, Wessam Magdy Abdullah, Marina Mikhail, Elizabeth Milne, Kenji Hirayama, Nguyen Tien Huy
Leukemia is the most commonly diagnosed childhood cancer, although its etiology is still largely unknown. Growing evidence supports a role for infection in the etiology of acute lymphocytic leukemia (ALL), and the involvement of the immune system suggests that vaccination may also play a role. However, the findings presented in the published literature are inconsistent. Therefore, we conducted a PRISMA systematic review and meta-analysis. 14 studies were identified and meta-analyzed. Vaccinations studied comprised Bacillus Calmette-Guérin (BCG) vaccine, Triple vaccine, Hepatitis B vaccine (HBV), Polio, Measles, Rubella, Mumps, trivalent MMR vaccine and Haemophilus influenza type B (HiB) vaccine...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29153912/-acute-epiglottitis-due-to-haemophilus-influenzae-b-a-severe-consequence-of-increased-skepticism-about-vaccination
#2
J Doutau, C Bost-Bru, A Gayot, I Wroblewski, I Pelloux, T Debillon, A Millet
Acute epiglottis is a life-threatening disease in relation with the occurrence of an acute upper airway obstruction. Its incidence has fallen dramatically since the widespread introduction of Haemophilus influenzae type b (Hib) conjugate vaccine. We report the case of a 26-month-old child who was not fully immunized and presented acute upper airway respiratory distress with fever. The symptoms quickly evolved to a respiratory arrest condition with bradycardia, revealing epiglottitis due to Hib. Despite high immunization coverage with great efficacy and occurrence of herd immunity, this entity still exists because of the French population's skepticism of the routine vaccination schedule...
November 16, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29140938/immunity-following-childhood-vaccinations-in-perinatally-hiv-exposed-children-with-and-without-hiv-infection-in-latin-america
#3
Regina Cm Succi, Margot R Krauss, D Robert Harris, Daisy M Machado, Maria I de Moraes-Pinto, Marisa M Mussi-Pinhata, Noris Pavia Ruz, Russell B Pierre, Lenka A Kolevic Roca, Esaú Joao, Irene Foradori, Marcelo C Scotta, Rohan Hazra, George K Siberry
BACKGROUND: Perinatally HIV-infected (PHIV) children are at risk for undervaccination and poor vaccine response at four years of age. Childhood vaccine coverage and immune response were compared between PHIV and HIV-exposed uninfected (HEU) children in Latin America and the Caribbean. METHODS: PHIV and HEU children were enrolled prospectively at fifteen sites from 2002-2009. Full vaccination by age four years was defined as: three hepatitis B virus (HBV) vaccine doses; four tetanus toxoid-containing vaccine doses; three doses of Haemophilus influenzae type b (Hib) vaccine by age 12 months or ≥1 dose given after age 12 months; one measles-containing vaccine dose; one rubella-containing vaccine dose...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29132992/measuring-the-timeliness-of-childhood-vaccinations-using-cohort-data-and-routine-health-records-to-evaluate-quality-of-immunisation-services
#4
Suzanne Walton, Mario Cortina-Borja, Carol Dezateux, Lucy J Griffiths, Karen Tingay, Ashley Akbari, Amrita Bandyopadhyay, Ronan A Lyons, Helen Bedford
BACKGROUND: To achieve full benefits of vaccination programmes, high uptake and timely receipt of vaccinations are required. OBJECTIVES: To examine uptake and timeliness of infant and pre-school booster vaccines using cohort study data linked to health records. METHODS: We included 1782 children, born between 2000 and 2001, participating in the Millennium Cohort Study and resident in Wales, whose parents gave consent for linkage to National Community Child Health Database records at the age seven year contact...
November 10, 2017: Vaccine
https://www.readbyqxmd.com/read/29095807/vaccination-coverage-among-children-aged-19-35-months-united-states-2016
#5
Holly A Hill, Laurie D Elam-Evans, David Yankey, James A Singleton, Yoonjae Kang
Vaccination is the most effective intervention to reduce morbidity and mortality from vaccine-preventable diseases in young children (1). Data from the 2016 National Immunization Survey-Child (NIS-Child) were used to assess coverage with recommended vaccines (2) among children aged 19-35 months in the United States. Coverage remained ≥90% for ≥3 doses of poliovirus vaccine (91.9%), ≥1 dose of measles, mumps, and rubella vaccine (MMR) (91.1%), ≥1 dose of varicella vaccine (90.6%), and ≥3 doses of hepatitis B vaccine (HepB) (90...
November 3, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29054729/hib-antibody-responses-in-infants-following-diphtheria-tetanus-acellular-pertussis-and-conjugated-haemophilus-influenzae-type-b-hib-combination-vaccines-with-decreasing-amounts-of-tetanus-toxoid
#6
Henry H Bernstein, Elisabeth R Seyferth
BACKGROUND: While combination vaccines have contributed to improved vaccine uptake rates in children, studies have documented varied immunogenicity to specific vaccine components. We studied whether varying the amount of tetanus toxoid (TT) in a DTaP and Hib combination vaccine would result in immunogenicity comparable with separate, concurrent administration. METHODS: We evaluated the immunogenicity of Massachusetts Biologic Laboratories (MBL) diphtheria, tetanus, and acellular pertussis (mDTaP) vaccine combined with tetanus-conjugated MBL Haemophilus influenzae type b vaccine (mHib) in a single injection (DTaPH)...
October 17, 2017: Vaccine
https://www.readbyqxmd.com/read/29049002/cost-effectiveness-of-the-haemophilus-influenzae-type-b-vaccine-for-infants-in-mainland-china
#7
Guijun Ning, Zundong Yin, Yixing Li, Huaqing Wang, Weizhong Yang
OBJECTIVE: The aims of this study were to estimate the cost-effectiveness of the Haemophilus influenzae type b (Hib) vaccine for the prevention of childhood pneumonia, meningitis and other vaccine-preventable diseases in mainland China from a societal perspective and to provide information about the addition of the Hib vaccine to Chinese immunization programs. METHODS: A decision tree and the Markov model were used to estimate the costs and effectiveness of the Hib vaccine versus no Hib vaccine for a birth cohort of 100,000 children in 2016...
October 19, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29046666/molecular-serotype-specific-identification-of-non-type-b-haemophilus-influenzae-by-loop-mediated-isothermal-amplification
#8
Chika Takano, Mitsuko Seki, Dong Wook Kim, Paul E Kilgore, Kazumasa Fuwa, Koji Takahashi, Toshiaki Inazaki, Satoshi Hayakawa
Over the past four decades, the incidence of meningitis caused by Haemophilus influenzae in children has decreased due to widespread vaccination against H. influenzae type b (Hib). The incidence of invasive diseases due to H. influenzae types not included in the vaccines, however, has increased. At present, there are a limited number of diagnostics available to detect non-type b H. influenzae. To address this issue, we developed a rapid, simple, and cost-effective method for detecting serotypes of H. influenzae...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29017702/collaborative-study-on-saccharide-quantification-of-the-haemophilus-influenzae-type-b-component-in-liquid-vaccine-presentations
#9
U Rosskopf, A Daas, E Terao, C von Hunolstein
Before release onto the market, it must be demonstrated that the total and free polysaccharide (poly ribosyl-ribitol-phosphate, PRP) content of Haemophilus influenzae type b (Hib) vaccine complies with requirements. However, manufacturers use different methods to assay PRP content: a national control laboratory must establish and validate the relevant manufacturer methodology before using it to determine PRP content. An international study was organised by the World Health Organization (WHO), in collaboration with the Biological Standardisation Programme (BSP) of the Council of Europe/European Directorate for the Quality of Medicines & HealthCare (EDQM) and of the European Union Commission, to verify the suitability of a single method for determining PRP content in liquid pentavalent vaccines (DTwP-HepB-Hib) containing a whole-cell pertussis component...
2017: Pharmeuropa Bio & Scientific Notes
https://www.readbyqxmd.com/read/28988865/impact-of-haemophilus-influenzae-type-b-conjugate-vaccination-on-hospitalization-for-invasive-disease-in-children-fifteen-years-after-its-introduction-in-italy
#10
Domenico Martinelli, Chiara Azzari, Paolo Bonanni, Susanna Esposito, Elisabetta Franco, Giancarlo Icardi, Gianvincenzo Zuccotti, Rosa Prato
In Italy, Hib conjugate vaccine was introduced for infants in 1999 and included in the DTaP-HBV-IPV-Hib combination in 2001, with an uptake of 83.4% in 2002, >90% by 2005, and >95% by 2011. We estimated the impact of Hib vaccination on hospitalizations for H. influenzae invasive disease in children <5years. Age-specific hospitalization rates and hospitalization risk ratios (HRRs) with 95%CI during 2001-2013 were calculated performing time-series analysis. The number of cases reported to the national surveillance of invasive bacterial diseases was compared to the number of hospitalizations between 2007-2013...
October 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28987442/haemophilus-influenzae-type-b-carriage-and-burden-of-its-related-diseases-in-chinese-children-systematic-review-and-meta-analysis
#11
REVIEW
Ya Yang, Xiang Pan, Wanting Cheng, Yu Yang, Robert W Scherpbier, Xu Zhu, Yue Chen, Yibiao Zhou, Qingwu Jiang
BACKGROUND: Haemophilus influenzae type b (Hib) is an important cause of invasive bacterial disease in children worldwide. The limited awareness of disease burden is a major barrier to the introduction of Hib vaccine into China's National Immunization Program. Therefore, we conducted a systematic review and meta-analysis to estimate carriage of Hib and burden of its related diseases in Chinese children. METHODS: We systematically searched Pubmed, Web of Science, Ovid, Chinese National Knowledge Infrastructure (CNKI), and Wanfang databases for studies published up to December 31, 2016, reporting Hib carriage and burden of Hib diseases among children in Mainland China...
October 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28983392/effects-of-polio-eradication-activities-on-routine-immunization-lessons-from-the-2013-outbreak-response-in-somali-region-of-ethiopia
#12
Belete Tafesse, Ephrem Tekle, Liya Wondwossen, Mengistu Bogale, Braka Fiona, Peter Nsubuga, Karengera Tomas, Aron Kassahun, Gallagher Kathleen, Aschalew Teka
INTRODUCTION: Ethiopia experienced several WPV importations with a total of 10 WPV1 cases confirmed during the 2013 outbreak alone before it is closed in 2015. We evaluated supplemental immunization activities (SIAs), including lessons learned for their effect on the routine immunization program during the 2013 polio outbreak in Somali regional state. METHODS: We used descriptive study to review documents and analyse routine health information system reports from the polio outbreak affected Somali regional state...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28983390/behavioral-determinants-of-immunization-service-utilization-in-ethiopia-a-cross-sectional-community-based-survey
#13
Yohannes Ababu, Fiona Braka, Aschalew Teka, Kinde Getachew, Tefera Tadesse, Yohannes Michael, Zewdie Birhanu, Peter Nsubuga, Tersit Assefa, Kathleen Gallagher
INTRODUCTION: According to the Ethiopian Health Sector Development Plan IV annual performance report (HSDP IV), Ethiopia targeted to reach 90% coverage with DPT-Hib-HepB 3 (Pentavalent3) vaccine and 86% coverage with measles vaccine in 2010- 2011. However, the actual performance fell-short of the intended targets due to several reasons. Therefore, a nationwide comprehensive study was conducted to examine the behavioral determinants of immunization practices in the Ethiopian context. The study employed the Modified Steps of Behavioral Change (SBC) Model as a theoretical lens...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28971707/a-review-of-haemophilus-influenzae-disease-in-europe-from-2000-2014-challenges-successes-and-the-contribution-of-hexavalent-combination-vaccines
#14
Shuchen Wang, Monica Tafalla, Linda Hanssens, Jan Dolhain
The development of diphtheria-tetanus-acellular pertussis-Haemophilus influenzae type b (Hib) conjugate vaccine combinations culminated with hexavalent vaccines, the largest, most complex vaccine combinations in the immunization calendar. Hexavalent vaccines are used widely in Europe and are co-administered with multiple other recommended vaccines. Hib immunogenicity may reduce when combined with acellular pertussis antigens, or in some co-administrations. We reviewed the epidemiology of H. influenzae disease in Europe aiming to evaluate the current level of Hib control and indirectly assess the effectiveness against Hib of GSK's hexavalent vaccine in 10 countries where it is/has been used almost exclusively...
October 3, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28959067/hepatitis-b-virus-surface-antigen-and-antibody-markers-in-children-at-a-major-paediatric-hospital-after-the-pentavalent-dtp-hbv-hib-vaccination
#15
Thomas Apiung, Thomas A Ndanu, Julius Aa Mingle, Kwamena Wc Sagoe
OBJECTIVES: The knowledge about outcomes of infant vaccination against HBV infections using the DPT-HepB-Hib vaccine in Ghana is limited. This study therefore investigated the levels of immunity to HBV among children who received the DPT-HepB-Hib vaccine and HBsAg carriage in non-responders. Correlates for non-response or poor response were also investigated. METHODS: Cross-sectional study. A major paediatric hospital in Accra. Four hundred and twenty four children between the ages of 5 to 32 months who had completed the full vaccination schedule for the DPT-HepB-Hib vaccine...
March 2017: Ghana Medical Journal
https://www.readbyqxmd.com/read/28951105/epidemiology-of-invasive-pneumococcal-and-haemophilus-influenzae-diseases-in-northwestern-ontario-canada-2010-2015
#16
Vic Eton, Annette Schroeter, Len Kelly, Michael Kirlew, Raymond S W Tsang, Marina Ulanova
INTRODUCTION: North American indigenous populations experience a high burden of invasive bacterial infections. Because Streptococcus pneumoniae and Haemophilus influenzae have multiple antigenic variants, the existing vaccines cannot prevent all cases. This study addresses the current epidemiology of invasive H. influenzae and pneumococcal disease (IPD) in a region of Northwestern Ontario, Canada with a relatively high (82%) indigenous population. METHODS: Data were retrieved from a retrospective chart review at a hospital servicing a population of 29000 (82% indigenous), during January 2010-July 2015...
September 22, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28903749/modelling-the-effects-of-booster-dose-vaccination-schedules-and-recommendations-for-public-health-immunization-programs-the-case-of-haemophilus-influenzae-serotype-b
#17
Nadia A Charania, Seyed M Moghadas
BACKGROUND: Haemophilus influenzae serotype b (Hib) has yet to be eliminated despite the implementation of routine infant immunization programs. There is no consensus regarding the number of primary vaccine doses and an optimal schedule for the booster dose. We sought to evaluate the effect of a booster dose after receiving the primary series on the long-term disease incidence. METHODS: A stochastic model of Hib transmission dynamics was constructed to compare the long-term impact of a booster vaccination and different booster schedules after receiving the primary series on the incidence of carriage and symptomatic disease...
September 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28882440/determinants-of-under-immunization-and-cumulative-time-spent-under-immunized-in-a-quebec-cohort
#18
Shauna O'Donnell, Eve Dubé, Bruce Tapiero, Arnaud Gagneur, Margaret K Doll, Caroline Quach
BACKGROUND: Under-immunization refers to a state of sub-optimal protection against vaccine preventable diseases. Vaccine coverage for age may not capture intentional or non-intentional spacing of vaccines in the recommended provincial immunization guidelines. We aimed to identify factors associated with coverage and under-immunization and to determine the number of days during which children were under-immunized during their first 24months of life. METHODS: Secondary analysis of children ≤3years recruited through active surveillance for gastroenteritis from three Quebec pediatric emergency departments from 2012 to 2014...
September 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28871608/paediatric-invasive-haemophilus-influenzae-in-queensland-australia-2002-2011-young-indigenous-children-remain-at-highest-risk
#19
Gavin Cleland, Clare Leung, Jenny Wan Sai Cheong, Joshua Francis, Claire Heney, Clare Nourse
AIM: Haemophilus influenzae continues to cause invasive disease in children despite widespread Hib immunisation. The significance of non-B serotypes continues to be investigated, with evidence of increased invasive non-typeable H. influenzae (NTHi) world-wide. The aim of this study was to examine the current epidemiological and clinical features of invasive H. influenzae disease in children in Queensland, Australia. METHODS: A retrospective review was performed of all cases of invasive H...
September 4, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28870657/use-of-biologic-therapy-by-pregnant-women-with-inflammatory-bowel-disease-does-not-affect-infant-response-to-vaccines
#20
Dawn B Beaulieu, Ashwin N Ananthakrishnan, Christopher Martin, Russell D Cohen, Sunanda V Kane, Uma Mahadevan
BACKGROUND & AIMS: In women with inflammatory bowel diseases (IBDs), 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 through 2016...
September 1, 2017: Clinical Gastroenterology and Hepatology
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