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HIV pneumococcal vaccination

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https://www.readbyqxmd.com/read/29903376/burden-of-streptococcus-pneumoniae-and-haemophilus-influenzae-type-b-disease-in-children-in-the-era-of-conjugate-vaccines-global-regional-and-national-estimates-for-2000-15
#1
Brian Wahl, Katherine L O'Brien, Adena Greenbaum, Anwesha Majumder, Li Liu, Yue Chu, Ivana Lukšić, Harish Nair, David A McAllister, Harry Campbell, Igor Rudan, Robert Black, Maria Deloria Knoll
BACKGROUND: Pneumococcal conjugate vaccine (PCV) and Haemophilus influenzae type b (Hib) vaccine are now used in most countries. To monitor global and regional progress towards improving child health and to inform national policies for disease prevention and treatment, we prepared global, regional, and national disease burden estimates for these pathogens in children from 2000 to 2015. METHODS: Using WHO and Maternal and Child Epidemiology Estimation collaboration country-specific estimates of pneumonia and meningitis mortality and pneumonia morbidity from 2000 to 2015, we applied pneumococcal and Hib cause-specific proportions to estimate pathogen-specific deaths and cases...
July 2018: Lancet Global Health
https://www.readbyqxmd.com/read/29895818/-invasive-neumococcal-disease-in-costa-del-sol-hospital-replacement-by-non-vaccinable-serotypes
#2
Ana María Correa, María Ángeles Onieva-García, Inma López, Natalia Montiel, José Alberto Maldonado Segura
OBJECTIVE: Streptococcus pneumoniae can cause invasive and noninvasive diseases. Invasive pneumococcal disease causes infections in tissues, organs and fluids that are normally sterile and is associated with severe clinical processes generally. The aim of this study was to characterize ENI episodes as well as to describe the antimicrobial susceptibility and distribution of serotypes (vaccinal and non-vacunal) of S. pneumoniae strains isolated in blood cultures of patients treated at the Hospital Costa del Sol between September 2012 and January 2017...
June 14, 2018: Revista Española de Salud Pública
https://www.readbyqxmd.com/read/29860151/title-incidence-of-invasive-pneumococcal-disease-in-immunocompromised-patients-a-systematic-review-and-meta-analysis
#3
REVIEW
Mariëlle van Aalst, Felix Lötsch, René Spijker, Jan T M van der Meer, Miranda W Langendam, Abraham Goorhuis, Martin P Grobusch, Godelieve J de Bree
BACKGROUND: Invasive pneumococcal disease (IPD) is associated with high morbidity and mortality, with immunocompromised patients (ICPs) at particular risk. Therefore, guidelines recommend pneumococcal vaccination for these patients. However, guidelines are scarcely underpinned with references to incidence studies of IPD in this population. This, potentially results in unawareness of the importance of vaccination and low vaccination rates. The objective of this systematic review and meta-analysis was to assess the incidence of IPD in ICPs...
May 31, 2018: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29753126/23-valent-pneumococcal-polysaccharide-vaccine-elicits-hierarchical-antibody-and-cellular-responses-in-healthy-and-tuberculosis-cured-elderly-and-hiv-1-infected-subjects
#4
Huichang Huang, Xiaohua Qian, Rong Pan, Ling Shen, Shanshan Liang, Feifei Wang, Peng Zhang, Hongbo Shen, Zheng W Chen
The PPV23 immunizes healthy elderly and other high-risk populations against pneumococcal disease. Immune mechanisms whereby these populations differently mount antibody(Ab) and cellular responses to PPV23 vaccination remain unknown. Here, healthy elderly, those elderly with prior tuberculosis-cured history (TB-cured), and HIV-infected humans were vaccinated with PPV23, and assessed for opsonophagocytic Ab responses and potential cellular mechanisms. PPV23 vaccination elicited hierarchical responses of opsonophagocytic Ab...
May 9, 2018: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29722823/immunogenicity-and-immunological-memory-induced-by-the-13-valent-pneumococcal-conjugate-followed-by-the-23-valent-polysaccharide-vaccine-in-hiv-infected-adults
#5
Paraskevi F Farmaki, Maria C Chini, Nikolaos M Mangafas, Marianna T Tzanoudaki, Christina P Piperi, Marios Z Lazanas, Vana S Spoulou
Background: Vaccine-induced memory B-cell (MBC) subsets have distinct roles in the establishment of protective immunity; MBCs expressing nonswitched immunoglobulin M (IgM+ MBCs) replenish the MBC pool, whereas MBCs expressing isotype-switched immunoglobulin (sIg+ MBCs) differentiate into plasma cells upon antigen reencounter. We investigated immunogenicity and MBCs induced by combined 13-valent pneumococcal conjugate vaccine (PCV13) and 23-valent pneumococcal polysaccharide vaccine (PPV23) in human immunodeficiency virus (HIV)-infected adults...
May 2, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29552009/the-effect-of-human-immunodeficiency-virus-and-cytomegalovirus-infection-on-infant-responses-to-vaccines-a-review
#6
REVIEW
Olivia Falconer, Marie-Louise Newell, Christine E Jones
The success of prevention of mother to child transmission programs over the last two decades has led to an increasing number of infants who are exposed to human immunodeficiency virus (HIV), but who are not themselves infected (HIV-exposed, uninfected infants). Although the morbidity and mortality among HIV-exposed, uninfected infants is considerably lower than that among HIV-infected infants, they may remain at increased risk of infections in the first 2 years of life compared with their HIV-unexposed peers, especially in the absence of breastfeeding...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29447196/nasopharyngeal-carriage-of-streptococcus-pneumoniae-among-hiv-infected-and-uninfected-children-5-years-of-age-before-introduction-of-pneumococcal-conjugate-vaccine-in-mozambique
#7
Jennifer R Verani, Sérgio Massora, Sozinho Acácio, Rita Teresa Dos Santos, Delfino Vubil, Fabiana Pimenta, Iaci Moura, Cynthia G Whitney, Maria Helena Costa, Eusébio Macete, Maria Benigna Matsinhe, Maria da Gloria Carvalho, Betuel Sigaúque
Nasopharyngeal carriage is a precursor for pneumococcal disease and can be useful for evaluating pneumococcal conjugate vaccine (PCV) impact. We studied pre-PCV pneumococcal carriage among HIV-infected and -uninfected children in Mozambique. Between October 2012 and March 2013, we enrolled HIV-infected children age <5 years presenting for routine care at seven HIV clinics in 3 sites, including Maputo (urban-south), Nampula (urban-north), and Manhiça (rural-south). We also enrolled a random sample of HIV-uninfected children <5 years old from a demographic surveillance site in Manhiça...
2018: PloS One
https://www.readbyqxmd.com/read/29302645/community-acquired-pneumococcal-pneumonia-in-northwestern-nigeria-epidemiology-antimicrobial-resistance-and-outcome
#8
Garba Iliyasu, Farouq Dayyab Mohammad, Abdulrazaq Garba Habib
Background: Pneumococcus is the leading cause of community acquired pneumonia (CAP) worldwide, and the leading cause of mortality. Pneumococcal pneumonia is poorly studied in Nigeria. We describe the epidemiology including associated co-morbidities and outcome of pneumococcal pneumonia in North-western Nigeria. Material and methods: We conducted a prospective, hospital based study on patients with community acquired pneumococcal pneumonia. Detailed clinical evaluation and relevant laboratory investigations were carried out...
2018: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29118167/invasive-disease-caused-simultaneously-by-dual-serotypes-of-streptococcus-pneumoniae
#9
Kedibone Ndlangisa, Mignon du Plessis, Mushal Allam, Nicole Wolter, Linda de Gouveia, Keith P Klugman, Cheryl Cohen, Rebecca A Gladstone, Anne von Gottberg
There are at least 98 known pneumococcal serotypes. Invasive pneumococcal disease (IPD) is usually caused by a single serotype, and dual-serotype IPD is rare. To assess factors associated with dual-serotype IPD, patient information obtained through laboratory-based surveillance for IPD from 2005 through 2014 in South Africa was reviewed. Genomes of isolate pairs from coinfected individuals were sequenced to determine their molecular characteristics. For 30 (91%) of 33 patients with dual serotypes, one or both isolates were a pneumococcal conjugate vaccine (PCV13) serotype...
January 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29052434/a-virtual-clinic-improves-pneumococcal-vaccination-coverage-among-patients-living-with-hiv-at-a-veterans-affairs-medical-center
#10
Charles M Burns, Richard E Banks, Brigid M Wilson, Rebecca R Carter, Robin L P Jump, Federico Perez
People living with the human immunodeficiency virus (HIV) should receive pneumococcal vaccinations as part of their routine health maintenance. Our goal was to create a "virtual clinic" to help increase rates of pneumococcal vaccination among people living with HIV without adding substantially to the workload of primary providers. We used administrative data from our Veterans Affairs (VA) medical center to identify a cohort of veterans living with HIV who were not current with either the 13-valent pneumococcal conjugate vaccine (PCV13), the 23-valent pneumococcal polysaccharide vaccine (PPSV23) or both...
February 2018: AIDS Care
https://www.readbyqxmd.com/read/28961675/nasopharyngeal-pneumococcal-colonization-and-impact-of-a-single-dose-of-13-valent-pneumococcal-conjugate-vaccine-in-indian-children-with-hiv-and-their-unvaccinated-parents
#11
Bikas K Arya, Sangeeta Das Bhattacharya, Catherine G Sutcliffe, Feroze Ganaie, Arun Bhaskar, Subhasish Bhattacharyya, Swapan Kumar Niyogi, William J Moss, Samiran Panda, Kadahalli Lingegowda Ravikumar, Ranjan Saurav Das, Sutapa Mandal
BACKGROUND: Human immunodeficiency virus (HIV) infection increases risk of invasive disease from Streptococcus pneumoniae. Pneumococcal conjugate vaccines (PCV) prevent invasive disease and acquisition of vaccine type (VT) pneumococcus in the nasopharynx. OBJECTIVE: To look at the safety and impact of one dose of PCV13 on acquisition of VT pneumococcal carriage in Indian children with HIV. METHOD: We conducted a cohort study in families of HIV-infected children (CLH) and families of HIV-uninfected children (HUC) in West Bengal...
May 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28867842/pneumococcal-conjugate-vaccines-and-hospitalization-of-children-for-pneumonia-a-time-series-analysis-south-africa-2006-2014
#12
Alane Izu, Fatima Solomon, Susan A Nzenze, Azwifarwi Mudau, Elizabeth Zell, Katherine L O'Brien, Cynthia G Whitney, Jennifer Verani, Michelle Groome, Shabir A Madhi
OBJECTIVE: To assess the impact of immunization with pneumococcal conjugate vaccines on all-cause pneumonia hospitalizations among children in Soweto, South Africa. METHODS: We used data collected at the Chris Hani Baragwanath Hospital in Soweto between 2006 and 2014 - i.e. before and after April 2009, when a pneumococcal conjugate vaccine was first included in South Africa's routine immunization programme. Using a Bayesian generalized seasonal autoregressive moving-average model and the data collected in 2006-2008, we estimated the numbers of children that would have been hospitalized for pneumonia between 2010 and 2014 if no pneumococcal conjugate vaccines had been used...
September 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/28688781/immunogenicity-of-13-valent-pneumococcal-conjugate-vaccine-among-children-with-underlying-medical-conditions
#13
Sabelle Jallow, Shabir A Madhi, Richard Madimabe, Nosisa Sipambo, Avy Violari, Udai Kala, Karen Petersen, Sanushka Naidoo, Charl Verwey, David P Moore, Marta C Nunes
BACKGROUND: Streptococcus pneumoniae is a leading cause of vaccine-preventable disease in children under 5years. Immunocompromised children and those with underlying diseases are at increased risk of severe complications from vaccine-preventable infections. We studied the humoral immune response to the 13-valent pneumococcal conjugate vaccine (PCV13) in children with HIV-infection, kidney or lung disease and compared this to the response in healthy control children. METHODS: Children aged 12-71months with underlying conditions including HIV-infection and those with kidney and lung diseases (at-risk children), and a healthy control group were vaccinated with PCV13...
August 3, 2017: Vaccine
https://www.readbyqxmd.com/read/28671978/estimated-severe-pneumococcal-disease-cases-and-deaths-before-and-after-pneumococcal-conjugate-vaccine-introduction-in-children-younger-than-5-years-of-age-in-south-africa
#14
Claire von Mollendorf, Stefano Tempia, Anne von Gottberg, Susan Meiring, Vanessa Quan, Charles Feldman, Jeane Cloete, Shabir A Madhi, Katherine L O'Brien, Keith P Klugman, Cynthia G Whitney, Cheryl Cohen
INTRODUCTION: Streptococcus pneumoniae is a leading cause of severe bacterial infections globally. A full understanding of the impact of pneumococcal conjugate vaccine (PCV) on pneumococcal disease burden, following its introduction in 2009 in South Africa, can support national policy on PCV use and assist with policy decisions elsewhere. METHODS: We developed a model to estimate the national burden of severe pneumococcal disease, i.e. disease requiring hospitalisation, pre- (2005-2008) and post-PCV introduction (2012-2013) in children aged 0-59 months in South Africa...
2017: PloS One
https://www.readbyqxmd.com/read/28660356/community-acquired-lower-respiratory-tract-infections-in-hiv-infected-patients-on-antiretroviral-therapy-predictors-in-a-contemporary-cohort-study
#15
Cristiane C Lamas, Lara E Coelho, Beatriz J Grinsztejn, Valdilea G Veloso
Community-acquired pneumonia represents the most frequent bacterial infection in patients with HIV/AIDS. PURPOSE: We aimed to assess variables associated with lower respiratory tract infection (LRTI) among HIV-infected adults using ART. METHODS: A cohort study of HIV-infected patients aged ≥18 years, enrolled from 2000 to 2015, on ART for at least 60 days, with primary outcome as the 1st episode of LRTI during follow-up. The independent variables included were sex at birth, age, race/skin color, educational level, tobacco smoking, alcohol use, cocaine use, diabetes mellitus, CD4 count, HIV viral load, influenza and pneumococcal vaccination...
December 2017: Infection
https://www.readbyqxmd.com/read/28482004/imputing-the-direct-and-indirect-effectiveness-of-childhood-pneumococcal-conjugate-vaccine-against-invasive-pneumococcal-disease-by-surveying-temporal-changes-in-nasopharyngeal-pneumococcal-colonization
#16
Susan A Nzenze, Shabir A Madhi, Tinevimbo Shiri, Keith P Klugman, Linda de Gouveia, David P Moore, Alan S Karstaedt, Stefano Tempia, Marta C Nunes, Anne von Gottberg
The limited capability in most low- to middle-income countries to study the benefit of pneumococcal conjugate vaccine (PCV) in protecting against invasive pneumococcal disease (IPD) calls for alternate strategies to assess this. We used a mathematical model to predict the direct and indirect effectiveness of PCV by analyzing serotype-specific colonization prevalence and IPD incidence prior to and following childhood PCV immunization in South Africa. We analyzed IPD incidence from 2005 to 2012 and colonization studies undertaken in human immunodeficiency virus (HIV)-uninfected and HIV-infected child-mother dyads from 2007 to 2009 (pre-PCV era), in 2010 (7-valent PCV era), and in 2012 (13-valent PCV era)...
August 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28464042/immune-activation-and-hiv-specific-t-cell-responses-are-modulated-by-a-cyclooxygenase-2-inhibitor-in-untreated-hiv-infected-individuals-an-exploratory-clinical-trial
#17
RANDOMIZED CONTROLLED TRIAL
Christian Prebensen, Marius Trøseid, Thor Ueland, Anders Dahm, Per Morten Sandset, Ingeborg Aaberge, Kristian Waalen, Anne Ma Dyrhol-Riise, Kjetil Taskén, Dag Kvale
Pathologically elevated immune activation and inflammation contribute to HIV disease progression and immunodeficiency, potentially mediated by elevated levels of prostaglandin E2, which suppress HIV-specific T cell responses. We have previously shown that a high dose of the cyclooxygenase-2 inhibitor celecoxib can reduce HIV-associated immune activation and improve IgG responses to T cell-dependent vaccines. In this follow-up study, we included 56 HIV-infected adults, 28 antiretroviral therapy (ART)-naïve and 28 on ART with undetectable plasma viremia but CD4 counts below 500 cells/μL...
2017: PloS One
https://www.readbyqxmd.com/read/28463977/production-of-igg-antibodies-to-pneumococcal-polysaccharides-is-associated-with-expansion-of-icos-circulating-memory-t-follicular-helper-cells-which-is-impaired-by-hiv-infection
#18
Laila N Abudulai, Sonia Fernandez, Karli Corscadden, Sally A Burrows, Michael Hunter, M Christian Tjiam, Lea-Ann S Kirkham, Jeffrey J Post, Martyn A French
Dysfunction of T follicular-helper (TFH) cells is a possible cause of impaired germinal centre (GC) and IgG antibody responses in individuals with human immunodeficiency virus-1 (HIV-1) infection and might contribute to decreased magnitude and isotype diversification of IgG antibodies to pneumococcal polysaccharides (PcPs). We examined the production of IgG1 and IgG2 antibodies to PcPs 4, 6B, 9V and 14 by enumerating antibody secreting cells (ASCs) at day (D) 7 and determining fold-increase in serum antibody levels at D28 after vaccination with unconjugated PcPs in HIV seronegative subjects (n = 20) and in HIV patients who were receiving antiretroviral therapy (ART) (n = 28) or who were ART-naive (n = 11) and determined their association with ICOS+ and ICOS- circulating memory TFH (cmTFH) cells (CD4+CD45RA-CD27+CXCR5+PD-1+) and short lived plasmablasts (SPBs) at D7, and with PcP-specific and total IgM+ and IgG+ memory B cells at D0...
2017: PloS One
https://www.readbyqxmd.com/read/28425818/immunization-with-10-valent-pneumococcal-non-typeable-haemophilus-influenzae-protein-d-conjugate-vaccine-phid-cv-according-to-different-schedules-in-infants-in-south-africa-a-phase-iii-trial
#19
RANDOMIZED CONTROLLED TRIAL
Shabir A Madhi, Anthonet Koen, Lisa Jose, Marta Moreira, Nadia van Niekerk, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan Pablo Yarzabal, Dorota Borys, Lode Schuerman
BACKGROUND: Limited clinical data exists to assess differences between various infant pneumococcal conjugate vaccine schedules. In this trial, we evaluated immunogenicity of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) administered using 3 different immunization schedules in HIV unexposed-uninfected infants in South Africa. METHODS: In this phase III, open, single-center, controlled study (clinicaltrials.gov: NCT00829010), 300 infants were randomized (1:1:1) to 1 of 3 PHiD-CV schedules: 3-dose priming and booster (3 + 1); 3-dose priming without booster (3 + 0); or 2-dose priming and booster (2 + 1)...
June 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28381345/vaccination-recommendations-for-the-adult-immunosuppressed-patient-a-systematic-review-and-comprehensive-field-synopsis
#20
REVIEW
Anthony Lopez, Xavier Mariette, Hervé Bachelez, Alexandre Belot, Bernard Bonnotte, Eric Hachulla, Morad Lahfa, Olivier Lortholary, Pierre Loulergue, Stéphane Paul, Xavier Roblin, Jean Sibilia, Mariela Blum, Silvio Danese, Stefanos Bonovas, Laurent Peyrin-Biroulet
BACKGROUND: Immunosuppressed patients are at risk of severe viral infections-related complications. National and international vaccination guidelines have been developed to decrease the mortality risk associated with these infections. However, a summary of these guidelines and the value of immunisation in this population is missing. OBJECTIVES: To summarize specific guidelines regarding vaccination in immunosuppressed patients. METHODS: We performed a literature search based on last update vaccine guidelines in immunosuppressed adult patients published between 1/1/2005-1/31/2016 in English or French language using PubMed, Cochrane and Embase, as well as relevant medical society websites...
June 2017: Journal of Autoimmunity
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