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Maryam Zamani, George C diCenzo, Branislava Milunovic, Turlough M Finan
We report that the smb20752 gene of the alfalfa symbiont Sinorhizobium meliloti is a novel symbiotic gene required for full N2 -fixation. Deletion of smb20752 resulted in lower nitrogenase activity and smaller nodules without impacting overall nodule morphology. Orthologs of smb20752 were present in all alpha and beta rhizobia, including the ngr_b20860 gene of Sinorhizobium fredii NGR234. A ngr_b20860 mutant formed Fix(-) determinate nodules that developed normally to a late stage of the symbiosis on the host plants Macroptillium atropurpureum and Vigna unguiculata...
October 11, 2016: Environmental Microbiology
Isabel de de la Fuente Garcia, Léna Coïc, Jean-Marie Leclerc, Caroline Laverdière, Céline Rousseau, Philippe Ovetchkine, Bruce Tapiéro
BACKGROUND: The objective of this retrospective study was to assess protection against vaccine preventable diseases (VPDs) in children treated for acute lymphoblastic leukemia (ALL). PROCEDURE: Clinical characteristics and vaccination records were collected. Antibodies against VPDs were measured after completion of chemotherapy and after a booster dose of vaccine. Immunization status of household members was evaluated. RESULTS: Sixty children were included...
October 8, 2016: Pediatric Blood & Cancer
Holly A Hill, Laurie D Elam-Evans, David Yankey, James A Singleton, Vance Dietz
Sustained high coverage with recommended vaccinations among children has kept many vaccine-preventable diseases at low levels in the United States (1). To assess coverage with vaccinations recommended for children by age 2 years in the United States (2), CDC analyzed data collected by the 2015 National Immunization Survey (NIS) for children aged 19-35 months (born January 2012-May 2014). Overall, coverage did not change during 2014-2015. Coverage in 2015 was highest for ≥3 doses of poliovirus vaccine (93...
October 7, 2016: MMWR. Morbidity and Mortality Weekly Report
Xiaolei Shi, Chunhua Xu, Hongying Hu, Fang Tang, Lijuan Sun
Meeting the regulatory discharge standards for pulp and paper mill wastewater has become ever more difficult because of its recalcitrant and colored dissolved organic matter (DOM). In this study, the variation of DOM from the secondary effluent of pulp and paper mill wastewater before and after coagulation was investigated based on hydrophobicity/hydrophilicity, apparent molecular weight (MW) and fluorescence. DOM fractions of the secondary effluent were all with the apparent MW <20 kDa. Particularly, the hydrophobic acids (HOA) fraction, mainly composed of humic-like materials, was the major component, and it also had the highest color and SUVA254 (UV254 to dissolved organic carbon ratio)...
September 2016: Water Science and Technology: a Journal of the International Association on Water Pollution Research
Zeyu Chen, Rong Guo, Jianghong Xu, Chuangjun Qiu
This study evaluated the immunogenicity and protective immunity of a Hemophilus influenzae b (Hib) polysaccharide conjugate vaccine with the pneumococcal surface adhesin A (PsaA) protein carrier in young mice. The Hib polysaccharide was conjugated with the rPsaA protein carrier, which was produced using recombinant DNA technology. A total of 15 young mice aged 3 weeks to 5 weeks were immunized with the conjugate vaccine, and another 15 young mice of the same age were immunized with the licensed Hib-tetanus toxoid (TT) vaccine...
September 20, 2016: Frontiers of Medicine
J Gaudelus, F Denis, R Cohen, J-P Stahl, P Pujol, E Gauthier, A Martinot
: Repeating evaluations of vaccine coverage (VC) is essential to measure the implementation and effectiveness of vaccination policy. We report the results of VC in infants from the Vaccinoscopie(®) study in 2014 to assess the changes secondary to the new 2013 immunization schedule. METHOD: Study conducted on Internet among a representative sample of mothers reporting their child's vaccination record. RESULTS: The removal of the dose of DTPa-Hib at the age of 3 months was quickly adopted since only 1 % of children aged 6 months had received three doses of DTPa in 2014 compared to 96 % in 2012...
October 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Seyed Bahman Momen, Seyed Davar Siadat, Neda Akbari, Bijan Ranjbar, Khosro Khajeh
BACKGROUND: Haemophilus influenzae type b (Hib) is the leading cause of bacterial meningitis, otitis media, pneumonia, cellulitis, bacteremia, and septic arthritis in infants and young children. The Hib capsule contains the major virulence factor, and is composed of polyribosyl ribitol phosphate (PRP) that can induce immune system response. Vaccines consisting of Hib capsular polysaccharide (PRP) conjugated to a carrier protein are effective in the prevention of the infections. However, due to costly processes in PRP production, these vaccines are too expensive...
June 2016: Jundishapur Journal of Microbiology
Sanjay K Lalwani, Sharad Agarkhedkar, Balasubramanian Sundaram, Niranjana S Mahantashetti, Nandini Malshe, Shalaka Agarkhedkar, Olivier Van Der Meeren, Shailesh Mehta, Naveen Karkada, Htay Htay Han, Narcisa Mesaros
Multivalent combination vaccines have reduced the number of injections and therefore improved vaccine acceptance, timeliness of administration and global coverage. The hexavalent diphtheria-tetanus-acellular pertussis-hepatitis B-inactivated poliovirus/Haemophilus influenzae type b (DTPa-HBV-IPV/Hib; Infanrix hexa™) vaccine, administered according to various schedules, is widely used for the primary vaccination of infants worldwide. In the current publication, we are presenting the immunogenicity and safety of three doses of DTPa-HBV-IPV/Hib vaccine when administered to Indian infants...
September 15, 2016: Human Vaccines & Immunotherapeutics
Han Wool Kim, Kyung-Hyo Kim, JiHye Kim, Moon H Nahm
BACKGROUND: The protective capacities of antibodies induced with Haemophilus influenzae type b (Hib) vaccines can be directly assessed in vitro with a Hib-specific serum bactericidal assay (SBA). However, the conventional SBA requires several tedious steps including manual counting of bacterial colonies, and therefore, it is seldom used. METHODS: To overcome these limitations, we have improved the conventional SBA by using frozen target bacteria and by developing an automated colony counting method based on agar plates with the chromogenic dye 2, 3, 5-triphenyl tetrazolium chloride (TTC)...
2016: BMC Infectious Diseases
Najwa Yahya Fayea, Ashraf Elsayed Fouda, Shaimaa Mohamed Kandil
BACKGROUND: A limited number of studies have examined the vaccine-specific antibody status of children with cancer. There are disagreements over the guidelines for postcancer immunization strategy. METHODS: Our study was an observational, cross-sectional retrospective review of data collected on children who were seen in the outpatient clinic at King Abdullah Medical City, Oncology Center, Jeddah, the Kingdom of Saudi Arabia. Our aim was to evaluate the seropositive status to vaccine-preventable diseases: measles, mumps, rubella, diphtheria, tetanus, polio, and Haemophilus influenzae type B (HIB) in childhood cancer survivors at our center in order to plan future vaccination for these children and establish a simple revaccination schedule...
July 26, 2016: Pediatrics and Neonatology
Oana Falup-Pecurariu, Sorin C Man, Mihai L Neamtu, Gratiana Chicin, Ginel Baciu, Carmen Pitic, Alexandra C Cara, Andrea E Neculau, Marin Burlea, Ileana L Brinza, Cristina N Schnell, Valentina Sas, Valeriu V Lupu, Nancy François, Kristien Swinnen, Dorota Borys
Prophylactic paracetamol administration impacts vaccine immune response; this study ( : NCT01235949) is the first to assess PHiD-CV immunogenicity following prophylactic ibuprofen administration. In this phase IV, multicenter, open-label, randomized, controlled, non-inferiority study in Romania (November 2010-December 2012), healthy infants were randomized 3:3:3:1:1:1 to prophylactically receive immediate, delayed or no ibuprofen (IIBU, DIBU, NIBU) or paracetamol (IPARA, DPARA, NPARA) after each of three primary doses (PHiD-CV at age three/four/five months co-administered with DTPa-HBV-IPV/Hib at three/five and DTPa-IPV/Hib at four months) or booster dose (PHiD-CV and DTPa-HBV-IPV/Hib; 12-15 months)...
August 19, 2016: Human Vaccines & Immunotherapeutics
Seyed Fazlolah Mousavi, Sara Fatemi, Seyed Davar Siadat, Seyed Mohsen Zahraei, Elnaz Nikanpour, Mohamad Ali Malekan, Ali Reza Khabiri, Ali Reza Janani
BACKGROUND: Haemophilus influenzae type b (Hib) infection has high morbidity and mortality rate, especially in children under 5 years of age. Enzyme-linked immunosorbent assay (ELISA) technique is the most used method to detect antibodies against H. influenzae. Available commercial ELISA kits are expensive and not always readily available, particularly for epidemiological studies. OBJECTIVES: This study was performed to develop and optimize a homemade ELISA kit for the detection of Hib anti-polyribosylribitol phosphate (PRP) antibodies in children...
May 2016: Jundishapur Journal of Microbiology
Anna Taddio, Horace Wong, Ben Welkovics, Angelo L Ilersich, Mara Cole, Morton Goldbach, Moshe Ipp
OBJECTIVE: This study compared the pain caused from fast vs. slow vaccine injections. METHODS: Infants aged 2-6months receiving primary immunizations were randomized to fast (2-4mL/s) or slow (5-10mL/s) injections during routine 0.5mL Diphtheria, Tetanus, acellular Pertussis, Inactivated Polio Virus, Haemophilus influenzae type b vaccine (DTaP-IPV-Hib) injections. Those aged 2 and 4months additionally received 0.5mL Pneumococcal Conjugate Vaccine (PCV) injections...
September 7, 2016: Vaccine
Neil C Williams, Michael A Johnson, Dominick E Shaw, Ian Spendlove, Jelena Vulevic, Graham R Sharpe, Kirsty A Hunter
Gut microbes have a substantial influence on systemic immune function and allergic sensitisation. Manipulation of the gut microbiome through prebiotics may provide a potential strategy to influence the immunopathology of asthma. This study investigated the effects of prebiotic Bimuno-galactooligosaccharide (B-GOS) supplementation on hyperpnoea-induced bronchoconstriction (HIB), a surrogate for exercise-induced bronchoconstriction, and airway inflammation. A total of ten adults with asthma and HIB and eight controls without asthma were randomised to receive 5·5 g/d of either B-GOS or placebo for 3 weeks separated by a 2-week washout period...
September 2016: British Journal of Nutrition
Beatriz Valcarcel Salamanca, Maria Elisabeth Hagerup-Jenssen, Elmira Flem
BACKGROUND: To minimise vaccine-associated risk of intussusception following rotavirus vaccination, Norway adopted very strict age limits for initiating and completing the vaccine series at the time rotavirus vaccination was included in the national immunisation programme, October 2014. Although Norway has a high coverage for routine childhood vaccines, these stringent age limits could negatively affect rotavirus coverage. We documented the status and impact of rotavirus vaccination on other infant vaccines during the first year after its introduction...
September 7, 2016: Vaccine
Jin Han Kang, Hoan Jong Lee, Kyung Hyo Kim, Sung Hee Oh, Sung Ho Cha, Jin Lee, Nam Hee Kim, Byung Wook Eun, Chang Hwi Kim, Young Jin Hong, Hyun Hee Kim, Kyung Yil Lee, Yae Jean Kim, Eun Young Cho, Hee Soo Kim, Fabrice Guitton, Esteban Ortiz
Recommended infant vaccination in Korea includes DTaP-IPV and Hib vaccines administered as separate injections. In this randomized, open, controlled study we assessed the non-inferiority of immunogenicity of DTaP-IPV//Hib pentavalent combination vaccine (Pentaxim™) compared with licensed DTaP-IPV and Hib (PRP~T) vaccines. We enrolled 418 healthy Korean infants to receive either separate DTaP-IPV and Hib vaccines (n = 206) or the pentavalent DTaP-IPV//Hib (n = 208) vaccine at 2, 4, 6 months of age. Antibodies to all components were measured before the first vaccination and one month after the third, and safety was assessed after each vaccination including recording of reactions by parents...
September 2016: Journal of Korean Medical Science
Kennedy Uadiale, Agatha Bestman, Charity Kamau, Dominique A Caugant, Jane Greig
BACKGROUND: Neisseria meningitidis serogroup C (NmC) has caused outbreaks in Nigeria of increasing size in three consecutive years since 2013. Rapid diagnostic tests (RDTs) for meningitis can facilitate quick identification of the causative pathogen; Pastorex can detect N. meningitidis serogroups A, C (NmC), Y/W135, N. meningitidis serogroup B/Escherichia coli K1, Haemophilus influenzae type b (Hib), Streptococcus pneumoniae, and group B Streptococcus. There is no published field evaluation of Pastorex in the identification of NmC...
July 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
Jos C Mieog, Jean-Philippe F Ral
This study describes a new approach in the screening for loss-of-gene mutants in Heavy Ion Bombardment (HIB) mutant populations of genetically complex organisms such as hexaploid bread wheat using multiplexed single-color (SYBR Green) melt curve analyses. The assay was set up for three target genes to test its validity and applicability. For each gene, three genome-specific primer pairs (one for each genome) with distinct melt curves were developed and multiplexed. This allowed screening for "single null mutants" (plants with the target gene deleted in one of the three genomes) for all three genomes in a single reaction...
2016: PloS One
L N Mazankova, O A Milovanova, D A Moiseenkova, I A Soldatova, E P Mikhalinova
AIM: To improve clinical/laboratory diagnosis of bacterial meningitis (BM) in children. MATERIAL AND METHODS: Fifty-seven patients, aged from 4 months to 12 years, with BM were examined. Bacteriological study of the mucus from the nasopharynx, sterility tests of blood and cerebrospinal fluid (CNF), clinical and biochemical tests, serological study of paired samples of plasma - indirect hemagglutination test, latex agglutination assay, immunological study of plasma and CNF with the determination of interferon -α, -β and -γ, interferon procalcitonin and neopterin with ELISA were performed at admission and after CNF remediation...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Mehmet Ceyhan, Yasemin Ozsurekci, Nezahat Gürler, Eda Karadag Oncel, Yıldız Camcioglu, Nuran Salman, Melda Celik, Melike Keser Emiroglu, Fatih Akin, Hasan Tezer, Aslinur Ozkaya Parlakay, Nilden Tuygun, Diyar Tamburaci, Ener Cagri Dinleyici, Adem Karbuz, Ünal Uluca, Emre Alhan, Ümmühan Çay, Zafer Kurugol, Nevin Hatipoğlu, Rengin Şiraneci, Tolga İnce, Gülnar Sensoy, Nursen Belet, Enes Coskun, Fatih Yilmaz, Mustafa Hacimustafaoglu, Solmaz Celebi, Ümit Celik, Metehan Ozen, Aybüke Akaslan, İlker Devrim, Necdet Kuyucu, Fatmanur Öz, Sefika Elmas Bozdemir, Ahu Kara
This is an observational epidemiological study to describe causes of bacterial meningitis among persons between 1 month and 18 years of age who are hospitalized with suspected bacterial meningitis in 7 Turkish regions. covering 32% of the entire population of Turkey. We present here the results from 2013 and 2014. A clinical case with meningitis was defined according to followings: any sign of meningitis including fever, vomiting, headache, and meningeal irritation in children above one year of age and fever without any documented source, impaired consciousness, prostration and seizures in those <1 year of age...
July 25, 2016: Human Vaccines & Immunotherapeutics
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