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https://www.readbyqxmd.com/read/28528009/identification-of-novel-haemophilus-parasuis-serovar-5-vaccine-candidates-using-an-immunoproteomic-approach
#1
Gang Li, Fang Xie, Jianjun Li, Jiao Liu, Dapeng Li, Yanhe Zhang, Paul R Langford, Yanwen Li, Siguo Liu, Chunlai Wang
Haemophilus parasuis is the aetiological agent of Glässer's disease, which is responsible for cases of fibrinous polyserositis, polyarthritis and meningitis. No vaccine is known that provides cross-protection against all serovars. The identification of novel immunoprotective antigens would undoubtedly contribute to the development of efficient subunit vaccines. In the present study, an immunoproteomic approach was used to analyze secreted proteins of H. parasuis and six proteins with high immunogenicity were identified...
May 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28523054/acute-bacterial-meningitis-in-children-presenting-to-the-children-s-hospital-lahore-before-and-after-pneumococcal-vaccine-in-pakistan-national-immunization-program-a-comparison
#2
Attia Bari, Fatima Zeeshan, Aizza Zafar, Hasan Ejaz, Uzma Jabeen, Ahsan Waheed Rathore
OBJECTIVE: To describe bacteriological profile, morbidity and mortality of acute bacterial meningitis (ABM) in children and to compare these parameters before and after the introduction of Pneumococcal vaccine in Pakistan National Immunization Program. METHODS: The present descriptive study was conducted at the Department of Paediatric Medicine of The Children's Hospital Lahore from January 2012 to December 2015. A total of 503 children one month to five years of age admitted with diagnosis of meningitis were included...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28522212/bioengineering-bacterial-outer-membrane-vesicles-as-vaccine-platform
#3
REVIEW
Matthias J H Gerritzen, Dirk E Martens, René H Wijffels, Leo van der Pol, Michiel Stork
Outer membrane vesicles (OMVs) are naturally non-replicating, highly immunogenic spherical nanoparticles derived from Gram-negative bacteria. OMVs from pathogenic bacteria have been successfully used as vaccines against bacterial meningitis and sepsis among others and the composition of the vesicles can easily be engineered. OMVs can be used as a vaccine platform by engineering heterologous antigens to the vesicles. The major advantages of adding heterologous proteins to the OMV are that the antigens retain their native conformation, the ability of targeting specific immune responses, and a single production process suffices for many vaccines...
May 15, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28516066/the-alpha-tocopherol-form-of-vitamin-e-boosts-elastase-activity-of-human-pmns-and-their-ability-to-kill-streptococcus-pneumoniae
#4
Elsa N Bou Ghanem, James N Lee, Basma H Joma, Simin N Meydani, John M Leong, Alexander Panda
Despite the availability of vaccines, Streptococcus pneumoniae remains a leading cause of life-threatening infections, such as pneumonia, bacteremia and meningitis. Polymorphonuclear leukocytes (PMNs) are a key determinant of disease course, because optimal host defense requires an initial robust pulmonary PMN response to control bacterial numbers followed by modulation of this response later in infection. The elderly, who manifest a general decline in immune function and higher basal levels of inflammation, are at increased risk of developing pneumococcal pneumonia...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28513815/epidemiology-of-paediatric-meningitis-in-central-c%C3%A3-te-d-ivoire-after-the-implementation-of-haemophilus-influenzae-type-b-vaccination
#5
Fidèle S Touré, Samson Kouame, Honoré Tia, Pacôme Monemo, Amadou Cissé, Bamourou Diané, Sören L Becker, Chantal Akoua-Koffi
Infectious meningitis accounts for enormous morbidity worldwide, but there is a paucity of data on its regional epidemiology in resource-constrained settings of sub-Saharan Africa. Here, we present a study on the aetiology of paediatric meningitis in central Côte d'Ivoire. Between June 2012 and December 2013, all cerebrospinal fluid (CSF) samples drawn at the University Teaching Hospital Bouaké were examined for the presence of bacterial and fungal pathogens. A causative agent was detected in 31 out of 833 CSF specimens (3...
May 17, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28508419/case-control-study-shows-that-neonatal-pneumococcal-meningitis-cannot-be-distinguished-from-group-b-streptococcus-cases
#6
Alexandra Arfi, Robert Cohen, Emmanuelle Varon, Stéphane Béchet, Stéphane Bonacorsi, Corinne Levy
AIM: Streptococcus pneumoniae (S. pneumoniae) is sometimes implicated in neonatal bacterial meningitis. This study described the demographic, clinical and biological features of neonatal S. pneumoniae meningitis and compared pneumococcal and group B streptococcal (GBS) neonatal meningitis. METHODS: We conducted a case-control study that compared neonates, aged one to 28 days with S. pneumoniae meningitis or GBS meningitis. Each case with S. pneumoniae was randomly matched to four control patients with GBS by age group and study year...
May 16, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28506425/fluoroquinolone-resistance-in-streptococcus-pneumoniae-isolates-in-germany-from-2004-2005-to-2014-2015
#7
Julia Schmitz, Mark van der Linden, Adnan Al-Lahham, Natalia Levina, Mathias W Pletz, Matthias Imöhl
Streptococcus pneumoniae is a major cause of bacterial pneumonia, sepsis and meningitis worldwide. Prevalence of levofloxacin-resistant S. pneumoniae isolates in Germany and associated mutations in the quinolone resistance determining regions (QRDRs), as well as serotype distribution and multi locus sequence types (MLST) are shown. 21,764 invasive S. pneumoniae isolates from Germany, isolated in the epidemiological seasons from 2004/05 to 2014/15 were analyzed at the German National Reference Centre for Streptococci (GNRCS) for their levofloxacin resistance by micro broth dilution method...
April 19, 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28504487/haemophilus-influenzae-type-b-meningitis-is-there-a-re-emergence-24-years-of-experience-in-a-children-s-hospital
#8
Angela Gentile, Ana C Martínez, María Del V Juarez, María F Lución, Candela Burgo, María P Della Latta, Solana Rapapor, Viviana Romanin, Marisa Turco
INTRODUCTION: Haemophilus influenzae type B (Hib) used to be the main cause of bacterial meningitis in children younger than 5 years old. Following the introduction of the Hib vaccine in the immunization schedule (1998), its incidence reduced significantly but it has increased over the last years. The objectives of this study included describing the characteristics and analyzing the epidemic curve of Haemophilus influenzae type B (Hib) meningitis by comparing the pre- and postimmunization periods...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28495657/outer-membrane-vesicles-extracted-from-neisseria-meningitidis-serogroup-x-for-prevention-of-meningococcal-disease-in-africa
#9
Reinaldo Acevedo, Caridad Zayas, Gunnstein Norheim, Sonsire Fernández, Barbara Cedré, Yisabel Aranguren, Maribel Cuello, Yaimara Rodriguez, Humberto González, Aleida Mandiarote, Marylin Pérez, Maritza Hernández, Mabel Hernández-Cedeño, Domingo González, Sverre-Henning Brorson, Einar Rosenqvist, Lisbeth Naess, Gro Tunheim, Daniel Cardoso, Luis García
Meningococcal disease is caused mainly by serogroups A, B, C, Y, W of N. meningitidis. However, numerous cases of meningitis caused by serogroup X N. meningitidis (MenX) have recently been reported in several African countries. Currently, there are no licensed vaccines against this pathogen and most of the MenX cases have been caused by meningococci from clonal complex (c.c) 181. Detergent extracted meningococcal outer membrane vesicle (dOMV) vaccines have previously shown to be safe and effective against epidemics of serogroup B meningococcal disease in all age groups...
May 8, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28493351/human-zika-and-west-nile-virus-neurological-infections-what-is-the-difference
#10
REVIEW
Clayton A Wiley, Leila Chimelli
The recent epidemic of West Nile Virus (WNV) infection in the United States was associated with severe neurological disease in immunocompromised hosts, while the emergence of Zika virus infection in the Americas has been notable for an association with increased microcephaly in the fetuses of infected mothers. Rare autopsies of WNV infected humans have shown multiple organ involvement with a clear neurotropism. We have recently had the opportunity to examine the distribution of Zika virus in autopsies of newborns from infected pregnancies...
May 11, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28479800/factors-determining-the-clinical-spectrum-course-and-response-to-treatment-and-complications-in-seronegative-patients-with-central-nervous-system-tuberculosis
#11
Sadanandavalli Retnaswami Chandra, Sikandar Advani, Ravi Kumar, Chandrajith Prasad, Anupama R Pai
INTRODUCTION: Tuberculous meningitis remains a major health issue in the community affecting young adults of both genders predominantly from rural background. In India, the disease continues to kill 2 people every 3 min or nearly 1000 daily, according to the Tuberculosis Control Society India. Tuberculosis (TB) of central nervous system (CNS) is the most devastating form of TB. As this disease is associated with very high prevalence in young adults and will ultimately contribute to great workforce loss, we decided to assess the factors deciding the disease and its course in our patients...
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28473508/uk-parents-attitudes-towards-meningococcal-group-b-menb-vaccination-a-qualitative-analysis
#12
Cath Jackson, Joanne Yarwood, Vanessa Saliba, Helen Bedford
OBJECTIVES: (1) To explore existing knowledge of, and attitudes, to group B meningococcal disease and serogroup B meningococcal (MenB) vaccine among parents of young children. (2) To seek views on their information needs. DESIGN: Cross-sectional qualitative study using individual and group interviews conducted in February and March 2015, prior to the introduction of MenB vaccine (Bexsero) into the UK childhood immunisation schedule. SETTING: Community centres, mother and toddler groups, parents' homes and workplaces in London and Yorkshire...
May 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28469431/opportunities-and-challenges-of-adolescent-and-adult-vaccination-administration-within-pharmacies-in-the-united-states
#13
REVIEW
Jessica Y Islam, Joann F Gruber, Alexandre Lockhart, Manju Kunwar, Spencer Wilson, Sara B Smith, Noel T Brewer, Jennifer S Smith
Pharmacies have been endorsed as alternative vaccine delivery sites to improve vaccination rates through increased access to services. Our objective was to identify challenges and facilitators to adolescent and adult vaccination provision in pharmacy settings in the United States. We recruited 40 licensed pharmacists in states with different pharmacy vaccination laws. Eligible pharmacists previously administered or were currently administering human papillomavirus (HPV); tetanus, diphtheria, and pertussis (TDAP); or meningitis (meningococcal conjugate vaccine [MCV4]) vaccines to adolescents aged 9 to 17 years...
2017: Biomedical Informatics Insights
https://www.readbyqxmd.com/read/28463942/diagnostic-practices-for-suspected-community-acquired-central-nervous-system-infection-in-the-post-conjugate-vaccine-era
#14
Natalie Banniettis, Saumya Joshi, Shubhi Kaushik, Stephan Kohlhoff, Margaret R Hammerschlag
OBJECTIVE: The aim of this study was to evaluate diagnostic practices for suspected community-acquired central nervous system (CNS) infection in an urban pediatric population. METHODS: This is an observational, retrospective single-center review of cerebrospinal fluid (CSF) studies in children, 1 month to 21 years old, evaluated for suspected CNS infection from 2004 to 2014. Cases of suspected nosocomial meningitis were excluded. The frequency of N-methyl-D-aspartate receptor antibody (NMDAR ab) encephalitis was analyzed from 2010 to 2014...
May 1, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28463499/advancing-homogeneous-antimicrobial-glycoconjugate-vaccines
#15
Roberto Adamo
Since 2004, when the first synthetic glycoconjugate vaccine against the pneumonia and meningitis causing bacterium Haemophilus influenza type b (Hib) approved for human use in Cuba was reported, 34 million doses of the synthetic vaccine have been already distributed in several countries under the commercial name of Quimi-Hib. However, despite the success of this product, no other synthetic glycoconjugate vaccine has been licensed in the following 13 years. As well as avoiding the need to handle pathogens, synthetic glycoconjugates offer clear advantages in terms of product characterization and the possibility to understand the parameters influencing immunogenicity...
May 2, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28459837/predicted-strain-coverage-of-a-meningococcal-multicomponent-vaccine-4cmenb-in-portugal
#16
Maria João Simões, Célia Bettencourt, Rosita De Paola, Maria Giuliani, Mariagrazia Pizza, Monica Moschioni, Jorge Machado
OBJECTIVE: Although the incidence of meningococcal disease has been declining over the past decade in Portugal MenB meningococci is still an important cause of meningitis and sepsis. The aim of this study was to estimate the strain coverage of the 4CMenB vaccine in Portugal in order to support health policies for prevention and control of meningococcal disease. METHODS: Since 2002 the clinical and laboratory notification of meningococcal disease is mandatory in Portugal...
2017: PloS One
https://www.readbyqxmd.com/read/28456490/pediatric-bacterial-meningitis-in-japan-2013-2015-3-5-years-after-the-wide-use-of-haemophilus-influenzae-type-b-and-streptococcus-pneumoniae-conjugated-vaccines
#17
Masayoshi Shinjoh, Yoshio Yamaguchi, Satoshi Iwata
BACKGROUND: Haemophilus influenzae type b (Hib) vaccine and pneumococcal conjugated vaccine (PCV) have been widely used since 2010 in Japan when both vaccines were supported by the regional governments, and they were covered as routine recommended vaccines in 2013. The incidence of bacterial meningitis due to these organisms decreased in 2011 and 2012, but meningitis due to Streptococcus agalactiae and Escherichia coli remained unchanged. OBJECTIVES: We planned to confirm whether the incidence also decreased in subsequent years...
April 26, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28455205/meningococcal-disease-in-the-middle-east-and-africa-findings-and-updates-from-the-global-meningococcal-initiative
#18
REVIEW
Ray Borrow, Dominique A Caugant, Mehmet Ceyhan, Hannah Christensen, Ener Cagri Dinleyici, Jamie Findlow, Linda Glennie, Anne Von Gottberg, Amel Kechrid, Julio Vázquez Moreno, Aziza Razki, Vincent Smith, Muhamed-Kheir Taha, Hassiba Tali-Maamar, Khalid Zerouali
The Global Meningococcal Initiative (GMI) has recently considered current issues in Middle Eastern and African countries, and produced two recommendations: (i) that vaccination of attendees should be considered for some types of mass-gathering events, as some countries mandate for the Hajj, and (ii) vaccination of people with human immunodeficiency virus should be used routinely, because of increased meningococcal disease (MD) risk. Differences exist between Middle Eastern and African countries regarding case and syndrome definitions, surveillance, and epidemiologic data gaps...
April 25, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28454648/the-siglec14-null-allele-is-associated-with-mycobacterium-tuberculosis-and-bcg-induced-clinical-and-immunologic-outcomes
#19
Andrew D Graustein, David J Horne, Jerry J Fong, Flavio Schwarz, Heather C Mefford, Glenna J Peterson, Richard D Wells, Munyaradzi Musvosvi, Muki Shey, Willem A Hanekom, Mark Hatherill, Thomas J Scriba, Nguyen Thuy Thuong Thuong, Nguyen Thi Hoang Mai, Maxine Caws, Nguyen Duc Bang, Sarah J Dunstan, Guy E Thwaites, Ajit Varki, Takashi Angata, Thomas R Hawn
Humans exposed to Mycobacterium tuberculosis (Mtb) have variable susceptibility to tuberculosis (TB) and its outcomes. Siglec-5 and Siglec-14 are members of the sialic-acid binding lectin family that regulate immune responses to pathogens through inhibitory (Siglec-5) and activating (Siglec-14) domains. The SIGLEC14 coding sequence is deleted in a high proportion of individuals, placing a SIGLEC5-like gene under the expression of the SIGLEC14 promoter (the SIGLEC14 null allele) and causing expression of a Siglec-5 like protein in monocytes and macrophages...
May 2017: Tuberculosis
https://www.readbyqxmd.com/read/28449971/indirect-herd-protection-following-pneumococcal-conjugated-vaccines-introduction-a-systematic-review-of-the-literature
#20
REVIEW
Gal Tsaban, Shalom Ben-Shimol
BACKGROUND: Pneumococcal diseases are major causes of morbidity among adults, especially those over 50years of age. While pneumococcal conjugated vaccines (PCV's) impact on pneumococcal disease rates among children is well established, the extent of its impact on adult pneumococcal related illness remains unclear. The aim of this systematic literature review was to describe the impact of PCV introduction to childhood national immunization programs worldwide on PCV-naive adult population...
May 19, 2017: Vaccine
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