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Vaccines post transplant

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https://www.readbyqxmd.com/read/28928210/analysis-of-individuals-from-a-dengue-endemic-region-helps-define-the-footprint-and-repertoire-of-antibodies-targeting-dengue-virus-3-type-specific-epitopes
#1
Daniela V Andrade, Leah C Katzelnick, Doug G Widman, Angel Balmaseda, Aravinda M de Silva, Ralph S Baric, Eva Harris
The four dengue virus serotypes (DENV1 to 4) cause dengue, a major public health problem worldwide. Individuals exposed to primary DENV infections develop serotype-specific neutralizing antibodies, including strongly neutralizing antibodies targeting quaternary epitopes. To date, no studies have measured the levels and kinetics of serum antibodies directed to such epitopes among populations in regions where dengue is endemic. Here, we use a recombinant DENV4 (rDENV4/3-M14) displaying a major DENV3 type-specific quaternary epitope recognized by human monoclonal antibody 5J7 to measure the proportion, magnitude, and kinetics of DENV3 type-specific neutralizing antibody responses targeting this epitope...
September 19, 2017: MBio
https://www.readbyqxmd.com/read/28920950/impact-of-a-dedicated-post-transplant-vaccination-service-at-an-australian-cancer-centre
#2
B W Teh, T Joyce, M A Slavin, K A Thursky, L J Worth
No abstract text is available yet for this article.
September 18, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28751095/a-comprehensive-review-of-immunization-practices-in-solid-organ-transplant-and-hematopoietic-stem-cell-transplant-recipients
#3
REVIEW
Pearlie P Chong, Robin K Avery
BACKGROUND: Vaccine-preventable diseases, especially influenza, varicella, herpes zoster, and invasive pneumococcal infections, continue to lead to significant morbidity and mortality in solid organ transplant (SOT) and hematopoietic stem cell transplant (HSCT) recipients. METHODS: We highlight guideline recommendations for the use of key vaccines in SOT and HSCT recipients and to review the latest evidence and developments in the field. RESULTS: Physicians should vaccinate individuals with end-stage organ disease, as vaccine seroresponse rates are higher pretransplantation...
July 24, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28691231/active-immunization-for-prevention-of-de-novo-hbv-infection-after-adult-living-donor-liver-transplantation-with-hbc-graft
#4
Shih-Ho Wang, Poh-Yen Loh, Ting-Lung Lin, Li-Man Lin, Wei-Feng Lee, Yu-Hung Lin, Chih-Che Lin, Chao-Long Chen
Background De novo hepatitis B infection (DNHB) may occur in recipients who do not receive prophylaxis after liver transplantation (LT) with anti-HBc(+) donor grafts. Active immunization has been shown to prevent DNHB in pediatric recipients. Our aim is to investigate the efficacy of HBV vaccination for preventing DNHB in adult living donor LT (LDLT). Patients and Methods 71 adult HBsAg(-) LDLT patients who received anti-HBc(+) grafts from 2000 to 2010 were enrolled into this study. Patients were given HBV vaccinations with the aim of achieving anti-HBs >1000 IU/L pre-transplant and >100 IU/L post-transplant...
July 10, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28677269/impact-of-a-pharmacist-led-vaccine-recommendation-program-for-pediatric-kidney-transplant-candidates
#5
Clarice E Carthon, Reed C Hall, Pamela R Maxwell, Barrett R Crowther
Pediatric transplant recipients commonly have deficient vaccination status at the time of transplantation. Utilizing transplant pharmacists to improve vaccination rates has not previously been described. This single-center, retrospective study evaluated the impact of transplant pharmacist interventions on the completion rate of vaccination schedules at time of kidney transplant. Patients who received pharmacist-led vaccination recommendations prior to transplant were compared to patients without pharmacist recommendations...
September 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28674683/infusion-of-sibling-marrow-in-a-patient-with-purine-nucleoside-phosphorylase-deficiency-leads-to-split-mixed-donor-chimerism-and-normal-immunity
#6
Laura Yeates, Mary A Slatter, Andrew R Gennery
Purine nucleoside phosphorylase (PNP) deficiency, a rare autosomal recessive metabolic disease causes combined immunodeficiency and developmental delay, hypotonia, and spasticity. Patients present with recurrent infections associated with T-lymphocytopenia, characteristically presenting later than patients with classical severe combined immunodeficiency (SCID). PNP, with adenosine deaminase (ADA), is part of the purine salvage pathway. The only curative therapy is hematopoietic stem cell transplantation. Myeloablative conditioning is recommended to prevent rejection caused by residual immune function...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28582321/cytomegalovirus-in-liver-transplant-recipients
#7
David Herman, Hyosun Han
PURPOSE OF REVIEW: Cytomegalovirus (CMV) is the most common opportunistic infection following solid-organ transplant and remains a cause of life-threatening disease and allograft rejection in liver transplant recipients. The purpose of this review is to highlight the current strategies in diagnosis and management of this disease in this vulnerable population. RECENT FINDINGS: Identification of high-risk individuals and aggressive treatment with antiviral agents, either via prophylaxis or by early initiation during active disease, has become the standard of care...
August 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28524898/influenza-adherence-tool-kit-implementation-and-evaluation-among-allogeneic-hematopoietic-transplantation-recipients%C3%A2
#8
Tracy Krimmel, Rajat Bannerji, Maribel Borysyuk, Susan M Schneider
BACKGROUND: Allogeneic transplantation is associated with significant complications, such as influenza, a common virus in the post-transplantation setting that can be detrimental to patients. Therefore, patients should adhere to influenza vaccinations.
. OBJECTIVES: The objectives of this project were to improve influenza adherence rates from 2015-2016, to increase transplantation recipients' knowledge of the importance of vaccination, and to evaluate the barriers to and facilitators of adherence rates to influenza vaccinations...
June 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28524832/measles-outbreak-in-pediatric-hematology-and-oncology-patients-in-shanghai-2015
#9
Yan-Ling Ge, Xiao-Wen Zhai, Yan-Feng Zhu, Xiang-Shi Wang, Ai-Mei Xia, Yue-Fang Li, Mei Zeng
BACKGROUND: Despite substantial progress toward measles control are making in China, measles outbreaks in immunocompromised population still pose a challenge to interrupt endemic transmission. This study aimed to investigate the features of measles in pediatric hematology and oncology patients and explore the reasons behind the outbreak. METHODS: We collected demographic, epidemiological, and clinical data of immunocompromised measles children. All suspected measles cases were laboratory-confirmed based on the presence of measles IgM and/or identification of measles RNA...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28495643/humoral-immune-reconstitution-kinetics-after-allogeneic-hematopoietic-stem-cell-transplantation-in-children-a-maturation-block-of-igm-memory-b-cells-may-lead-to-impaired-antibody-immune-reconstitution
#10
Hisham Abdel-Azim, Amro Elshoury, Kris M Mahadeo, Robertson Parkman, Neena Kapoor
Although T cell immune reconstitution after allogeneic hematopoietic stem cell transplantation (allo-HSCT) has been well studied, long-term B cell immune reconstitution remains less characterized. We evaluated humoral immune reconstitution among 71 pediatric allo-HSCT recipients. Although tetanus toxoid antibody levels were normal at 1 year after allo-HSCT, antipolysaccharide carbohydrate antibodies remained persistently low for up to 5 years. While naive B cell counts normalized by 6 months, IgM memory B cell deficiency persisted for up to 2 years (P = ...
September 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28460154/hepatitis-b-infection-acquired-after-haematopioetic-stem-cell-transplant-through-horizontal-mode
#11
Martin C W Chan, Frankie W T Cheng, Kin H Sze, Ann H Wong, Alex W K Leung, Paul K S Chan, Chi K Li
A 22 month old child with thalassaemia major received unrelated umbilical cord blood transplantation. She was born to mother of HBsAg carrier and received hepatitis B immunoglobulin at birth and hepatitis B vaccination. She was HBsAg negative and anti-HBs positive before transplantation. After transplant, she was taken care by her mother and found to be HBsAg positive at 2 year post-transplant. Genotyping of the mother's and child's HBV status confirmed to be of same genotype and demonstrated horizontal transmission in post-transplant setting...
April 29, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28457920/antibody-response-to-hbv-vaccination-on-dialysis-does-not-correlate-with-the-development-of-denovo-anti-hla-antibodies-after-renal-transplantation
#12
Teresa Kauke, Maximilian Link, Markus Rentsch, Manfred Stangl, Markus Guba, Joachim Andrassy, Jens Werner, Bruno Meiser, Michael Fischereder, Antje Habicht
BACKGROUND: Response to Hepatitis B virus (HBV) vaccination can be diminished in some (50-80%) but not all dialysis patients. We hypothesized, that the response to vaccination on dialysis may correlate with the development of anti-HLA antibodies after renal transplantation and might therefore be a valuable parameter to predict alloresponses. METHODS: The response to HBV vaccination on dialysis and the development of deNovo anti-HLA antibodies post-transplant was analyzed in 188 non-immunized renal transplant recipients...
June 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28405517/hematopoietic-stem-cell-derived-myeloid-and-plasmacytoid-dc-based-vaccines-are-highly-potent-inducers-of-tumor-reactive-t-cell-and-nk-cell-responses-ex-vivo
#13
Soley Thordardottir, Nicolaas Schaap, Elja Louer, Michel G D Kester, J H Frederik Falkenburg, Joop Jansen, Timothy R D Radstake, Willemijn Hobo, Harry Dolstra
Because of the potent graft-versus-tumor (GVT) effect, allogeneic stem cell transplantation (alloSCT) can be a curative therapy for hematological malignancies. However, relapse remains the most frequent cause of treatment failure, illustrating the necessity for development of adjuvant post-transplant therapies to boost GVT immunity. Dendritic cell (DC) vaccination is a promising strategy in this respect, in particular, where distinct biologic functions of naturally occurring DC subsets, i.e. myeloid DCs (mDCs) and plasmacytoid DCs (pDCs), are harnessed...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28263288/a-pilot-randomized-trial-of-adjuvanted-influenza-vaccine-in-adult-allogeneic-hematopoietic-stem-cell-transplant-recipients
#14
Y Natori, A Humar, J Lipton, D D Kim, P Ashton, K Hoschler, D Kumar
The annual influenza vaccine is recommended for hematopoietic stem cell transplant (HSCT) patients although studies have shown suboptimal immunogenicity. Influenza vaccine containing an oil-in-water emulsion adjuvant (MF59) may lead to greater immunogenicity in HSCT recipients. We randomized adult allogeneic HSCT patients to receive the 2015-2016 influenza vaccine with or without MF59 adjuvant. Preimmunization and 4-week post-immunization sera underwent strain-specific hemagglutination inhibition assay. We randomized 73 patients and 67 (35 adjuvanted; 32 non-adjuvanted) had paired samples available at follow-up...
March 6, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28228321/immunization-of-bighorn-sheep-against-mannheimia-haemolytica-with-a-bovine-herpesvirus-1-vectored-vaccine
#15
Sai A Batra, Sudarvili Shanthalingam, Gaetano Donofrio, Gary J Haldorson, Shafiqul Chowdhury, Stephen N White, Subramaniam Srikumaran
Mannheimia haemolytica is an important pathogen of pneumonia in bighorn sheep (BHS), consistently causing 100% mortality under experimental conditions. Leukotoxin is the critical virulence factor of M. haemolytica. In a 'proof of concept' study, a vaccine containing leukotoxin and surface antigens of M. haemolytica induced 100% protection in BHS, but required multiple booster doses. Vaccination of wildlife is difficult. BHS, however, can be vaccinated at the time of transplantation, but administration of booster doses is impossible...
February 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28154282/the-successful-treatment-of-a-cord-blood-transplant-recipient-with-varicella-zoster-virus-meningitis-radiculitis-and-myelitis-with-foscarnet
#16
Ryo Shimizu, Chikako Ohwada, Yuhei Nagao, Emi Togasaki, Chika Kawajiri, Tomoya Muto, Shokichi Tsukamoto, Shio Sakai, Yusuke Takeda, Naoya Mimura, Masahiro Takeuchi, Emiko Sakaida, Tohru Iseki, Chiaki Nakaseko
Infections of the central nervous system (CNS) with varicella zoster virus (VZV) is a rare occurrence after allogeneic hematopoietic stem cell transplantation. We herein report a case of VZV meningitis, radiculitis and myelitis that developed 8 months after cord blood transplantation, shortly after the cessation of cyclosporine and low-dose acyclovir. Although treatment with acyclovir did not achieve a satisfactory response, the patient was successfully treated with foscarnet. Our report indicates that VZV infection should be considered in allo-hematopoietic stem cell transplantation (HSCT) patients with CNS symptoms and that foscarnet may be effective for the treatment of acyclovir-resistant VZV infections of the CNS...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28146188/-vaccination-of-adult-patients-receiving-hematopoietic-stem-cell-transplantation-perspective-of-costa-rica
#17
M Del Rosario Espínoza Mora, Gustavo Lazo Páez, M Paz León Bratti, Christian Schauer
In this article the present recommendations for immunization of adult patients who received hematopoietic stem cell transplantation -a common procedure in therapy of many types of hematological diseases and serious inborn defects of the immune system- are reviewed and discussed. Patients that undergo this kind of transplantation procedure exhibit, compared to the general population, an elevated susceptibility of immune-preventable infections, due to loss of the humoral and cellular protective immunity. A revaccination strategy for transplanted patients can result in a significant diminution of morbidity and mortality related to the treatment of these diseases...
December 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28141843/zika-virus-tissue-and-blood-compartmentalization-in-acute-infection-of-rhesus-macaques
#18
Lark L Coffey, Patricia A Pesavento, Rebekah I Keesler, Anil Singapuri, Jennifer Watanabe, Rie Watanabe, JoAnn Yee, Eliza Bliss-Moreau, Christina Cruzen, Kari L Christe, J Rachel Reader, Wilhelm von Morgenland, Anne M Gibbons, A Mark Allen, Jeff Linnen, Kui Gao, Eric Delwart, Graham Simmons, Mars Stone, Marion Lanteri, Sonia Bakkour, Michael Busch, John Morrison, Koen K A Van Rompay
Animal models of Zika virus (ZIKV) are needed to better understand tropism and pathogenesis and to test candidate vaccines and therapies to curtail the pandemic. Humans and rhesus macaques possess similar fetal development and placental biology that is not shared between humans and rodents. We inoculated 2 non-pregnant rhesus macaques with a 2015 Brazilian ZIKV strain. Consistent with most human infections, the animals experienced no clinical disease but developed short-lived plasma viremias that cleared as neutralizing antibody developed...
2017: PloS One
https://www.readbyqxmd.com/read/28088400/hospitalizations-for-respiratory-syncytial-virus-and-vaccine-preventable-infections-in-the-first-2-years-after-pediatric-liver-transplant
#19
Amy G Feldman, Shikha S Sundaram, Brenda L Beaty, Allison Kempe
OBJECTIVES: To examine in liver transplant recipients at centers participating in the Pediatric Health Information System dataset the number of hospitalizations for respiratory syncytial virus (RSV) and vaccine-preventable infections (VPIs) in the first 2 years after transplantation, morbidity and mortality associated with these hospitalizations, and costs associated with these hospitalizations. STUDY DESIGN: A retrospective cohort study of patients <18 years of age who underwent liver transplantation at a Pediatric Health Information System center between January 1, 2004, and December 31, 2012...
March 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28012778/b-cell-and-antibody-responses-in-mice-induced-by-a-putative-cell-surface-peptidase-of-pneumocystis-murina-protect-against-experimental-infection
#20
Sanbao Ruan, Yang Cai, Alistair J Ramsay, David A Welsh, Karen Norris, Judd E Shellito
RATIONALE: Pneumocystis pneumonia is a major cause of morbidity and mortality in HIV-infected subjects, cancer patients undergoing chemotherapy and solid organ transplant recipients. No vaccine is currently available. By chemical labeling coupled with proteomic approach, we have identified a putative surface protein (SPD1, Broad Institute gene accession number PNEG_01848) derived from single suspended P. murina cysts. SPD1 was expressed in an insect cell line and tested for vaccine development...
January 23, 2017: Vaccine
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