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Sintusek P, Khunsri S, Vichaiwattana P, Polsawat W, Buranapraditkun S, Poovorawan Y. Hepatitis A vaccine immunogenicity among seronegative liver transplanted children. Sci Rep 2024; 14:22202. [PMID: 39333725 PMCID: PMC11437123 DOI: 10.1038/s41598-024-73390-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 09/17/2024] [Indexed: 09/29/2024] Open
Abstract
The hepatitis A virus (HAV) vaccine is highly immunogenic in general, yet data on its use in liver-transplanted (LT) children is limited. This study aimed to determine the seroimmunity to HAV in all LT children, and the immunogenicity of an inactivated HAV vaccine in seronegative LT children at King Chulalongkorn Memorial Hospital. Seronegative LT children received the inactivated HAV vaccine at 0 and 6-8 months with adverse events monitored for 3 days post-immunization. The result reviewed that among 105 LT children, vaccination records were available for 81%, of which 7.1% and 16.5% with one and two doses of HAV vaccine were immunized before transplantation, respectively. Post-transplantation, 20.1% were seropositive for HAV, with 9.5% due to pre-transplant immunization. Eighty-three seronegative LT children (aged 7.25 ± 4.40 years; 48.6% male) received two vaccine doses. The seropositive rate increased following the first and second doses and reached to 51.5%, and 92.9%, respectively (p < 0.001), with no serious adverse events reported. Age at vaccination and the interval from transplantation to vaccination were risk factors for non-responsiveness (p < 0.001). The study highlighted inadequate HAV vaccination coverage, leaving most LT children susceptible to infection. HAV vaccine proved highly immunogenic and safe, emphasizing the need for improved vaccination strategies before and after liver transplantation.Trial registration TCTR20220110001.
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Affiliation(s)
- Palittiya Sintusek
- Center of Excellence in Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI), Faculty of Medicine, Department of Pediatrics, King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Siriporn Khunsri
- Center of Excellence in Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI), Faculty of Medicine, Department of Pediatrics, King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Faculty of Medicine King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Warunee Polsawat
- Excellence Center for Organ Transplantation, King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supranee Buranapraditkun
- Division of Allergy and Clinical Immunology, Department of Medicine, King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine King Chulalongkorn Memorial Hospital and Thai Red Cross Society, Chulalongkorn University, Bangkok, 10330, Thailand.
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Shieb M, Hasanain R, Arshad Z, Nawaz FA, Kashyap R, Stern EJ. Incidence, causative organisms, and risk factors of bloodstream infections in pediatric liver transplant patients: a systematic review. Clin Exp Pediatr 2024; 67:427-434. [PMID: 38605664 PMCID: PMC11374452 DOI: 10.3345/cep.2023.01466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/03/2024] [Indexed: 04/13/2024] Open
Abstract
Bacterial bloodstream infections (BSI) are the leading cause of mortality and morbidity in pediatric solid organ transplant recipients. This systematic review aimed to pool global data from leading transplant institutions and identify the overall incidence, risk factors, and causative organisms of BSI in pediatric liver transplant recipients. A systematic review of the PubMed and OVID databases was conducted from 2000 to 2022. The initial search yielded 252 unique articles, which were independently reviewed by 2 authors. Articles that reported pediatric-specific data on BSI in isolated liver transplant patients were included, including the incidence of BSI, isolated organisms, and involved risk factors involved. This systematic review was registered with PROSPERO (ID: CRD42023403206). Fourteen articles from the United States, France, Iran, Japan, Korea, South Africa, Thailand, and Turkey were included. A total of 4,812 liver transplants were included in the final analysis. The mean patient age was 25 months (age range, 0-18 years), and 50.9% were male. The overall incidence of BSI was 23.5% (range, 14.7%-55%). The most commonly reported organisms were Staphylococcus epidermidis, Enterococcus, Klebsiella spp., and Escherichia coli. Among the risk factors studied, postope rative biliary complications, a medical history of biliary atresia, and younger age were the risk factors most commonly associated with BSI. Bacterial BSI after pediatric liver transplantation occur at a high incidence, with a unique organism profile notable for a higher percentage of gram-negative organisms. Further studies are required to determine the most appropriate prophylactic and empirical antibiotic management strategies for this population.
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Affiliation(s)
- Mohamad Shieb
- Medstar Georgetown University Hospital, Washington, DC, USA
| | | | - Zara Arshad
- Shifa Clinical Research Center, Islamabad, Pakistan
| | | | | | - Eric J Stern
- Medstar Georgetown University Hospital, Washington, DC, USA
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Sintusek P, Buranapraditkun S, Khunsri S, Thongmee T, Vichaiwattana P, Polsawat W, Poovorawan Y. Safety and Efficacy of a Third Dose of the BNT162b2 Vaccine in Liver-Transplanted and Healthy Adolescents. JPGN REPORTS 2023; 4:e373. [PMID: 38034438 PMCID: PMC10684171 DOI: 10.1097/pg9.0000000000000373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/09/2023] [Indexed: 12/02/2023]
Abstract
Objectives According to our previous study, the 2-dose-BNT162b2 vaccination is less effective against the Omicron variant. This study aimed to assess the safety and efficacy of a 3-dose-BNT162b2 vaccination in liver-transplanted (LT) and healthy adolescents. Methods LT and healthy adolescents who met the inclusion criteria received a third dose of the BNT162b2 vaccine (30 µg). Antireceptor-binding domain immunoglobulin and T-cell-specific responses to severe acute respiratory syndrome coronavirus 2 spike peptides were assessed 3 months before the third dose (Visit -1) and 0 (Visit 0), 1 (Visit 1), and 2 months (Visit 2) after the third dose. Antinucleocapsid immunoglobulin and neutralizing antibodies were assessed at Visits 0 and 1. Adverse events (AEs) were monitored. Results Eleven LT and 14 healthy adolescents aged 14.64 (13.2, 15.7) years (44.2% male) had antireceptor-binding domain immunoglobulin geometric mean titers of 1412.47 (95% confidence interval [CI], 948.18-2041.11) and 1235.79 (95% CI, 901.07-1705.73) U/mL at Visit -1 but increased to 38 587.76 (95% CI, 24 628.03-60 460.18) and 29 222.38 (95% CI, 16 291.72-52 401.03) U/mL (P < 0.05) at Visit 1, respectively. This was consistent with neutralizing antibodies (42.29% and 95.37% vs 44.65% and 91.68%, P < 0.001) and interferon-γ-secreting cells in LT and healthy adolescents at Visit 0 versus Visit 1, respectively. For serious AEs, an LT girl with autoimmune overlap syndrome died 5 months postvaccination from acute liver failure. Conclusions In both LT and healthy adolescents, humoral and cellular immune responses were high after the 3-dose-BNT162b2 vaccination. However, serious AEs were suspected in LT adolescents with autoimmune diseases.
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Affiliation(s)
- Palittiya Sintusek
- From the Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI) Research Unit, Division of Gastroenterology, Department of Pediatrics
| | - Supranee Buranapraditkun
- Division of Allergy and Clinical Immunology, Department of Medicine, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, Thai Red Cross Society, Bangkok, Thailand
- Center of Excellence in Vaccine Research and Development (Chula Vaccine Research Center-Chula VRC), Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Siriporn Khunsri
- From the Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI) Research Unit, Division of Gastroenterology, Department of Pediatrics
| | - Thanunrat Thongmee
- Center of Excellence in Clinical Virology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, The Thai Red Cross Society, Bangkok, Thailand
| | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, The Thai Red Cross Society, Bangkok, Thailand
| | - Warunee Polsawat
- Excellent Center for Organ Transplantation, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, The Thai Red Cross Society, Bangkok, Thailand
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Moonpanane K, Thepsaw J, Pitchalard K, Purkey E. Parental perceptions, attitudes, and beliefs regarding vaccination of children aged 0-5 years: A qualitative study of hill-tribe communities, Thailand. Hum Vaccin Immunother 2023; 19:2233398. [PMID: 37460107 PMCID: PMC10353339 DOI: 10.1080/21645515.2023.2233398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/19/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023] Open
Abstract
The widespread availability and use of vaccines have tremendously reduced morbidity and deaths related to infectious diseases globally. However, in hill-tribe communities in Northern Thailand, vaccination rates remain low, and there is limited literature on parental perceptions, attitudes, and beliefs about vaccination for children under five years of age. We conducted a qualitative study employing semi-structured interviews to understand parents' perceptions, attitudes, and beliefs about vaccinations. A purposive sample was used to recruit participants. Data were analyzed using thematic analysis. 74 hill-tribe parents (14 Akha, 11 Hmong, 12 Lahu, 13 Lisu, 12 Karen, and 12 Yao) were interviewed. Four themes emerged from the interviews: 1) traditional beliefs, and practices 2) traumatic experiences, 3) lack of information and effective communication, and 4) trust and support from the community. Findings highlight that it is crucial to build trust by providing knowledge, appropriate information, and advice about vaccinations in order to improve vaccine coverage in children under five years of age in the hill-tribe context.
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Affiliation(s)
| | - Jintana Thepsaw
- School of Nursing, Mae Fah Luang University, Chiang Rai, Thailand
| | | | - Eva Purkey
- Department of Family Medicine, Queen's University, Kingston, ON, Canada
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Walti LN, Mugglin C, Mombelli M, Manuel O, Hirsch HH, Khanna N, Mueller NJ, Berger C, Boggian K, Garzoni C, Neofytos D, van Delden C, Mäusezahl M, Hirzel C. Vaccine-Preventable Infections Among Solid Organ Transplant Recipients in Switzerland. JAMA Netw Open 2023; 6:e2310687. [PMID: 37115546 PMCID: PMC10148200 DOI: 10.1001/jamanetworkopen.2023.10687] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Importance Vaccine responses are decreased in solid organ transplant (SOT) recipients, and given the complexity of implementation, vaccination programs may be suboptimal. The actual burden of vaccine-preventable infections (VPIs) among SOT recipients remains unclear. Objectives To assess the incidence rate of VPIs among SOT recipients and to evaluate whether SOT recipients are at increased risk for specific VPIs compared with the general population. Design, Setting, and Participants This nationwide cohort study used data from the Swiss Transplant Cohort Study on VPIs in individuals who underwent SOT from May 2008 to June 2019 (follow-up until December 2019) and data from the Swiss Federal Office of Public Health on notifiable VPIs in the general population in the same period. Data were analyzed from January 2021 to June 2022. Exposures Solid organ transplant. Main Outcomes and Measures The main outcomes were the incidence rate of the following VPIs in SOT recipients: hepatitis A and B, diphtheria, Haemophilus influenzae infection, influenza, measles, mumps, pertussis, pneumococcal disease, poliomyelitis, meningococcal disease, rubella, tetanus, tick-borne encephalitis, and varicella zoster virus infection. Age-adjusted standardized incidence ratios were used to assess whether VPIs occurred more frequently in SOT recipients compared with the general population. For SOT recipients, factors associated with occurrence of VPIs were explored and the associated morbidity and mortality assessed. Results Of 4967 SOT recipients enrolled (median age, 54 years [IQR, 42-62 years]; 3191 [64.2%] male), 593 (11.9%) experienced at least 1 VPI. The overall VPI incidence rate was higher in the population that underwent SOT (30.57 per 1000 person-years [PY]; 95% CI, 28.24-33.10 per 1000 PY) compared with the general population (0.71 per 1000 PY). The standardized age-adjusted incidence ratio for notifiable VPIs in SOT recipients was higher compared with the general population (27.84; 95% CI, 25.00-31.00). In SOT recipients, influenza and varicella zoster virus infection accounted for most VPI episodes (16.55 per 1000 PY [95% CI, 14.85-18.46 per 1000 PY] and 12.83 per 1000 PY [95% CI, 11.40-14.44 per 1000 PY], respectively). A total of 198 of 575 VPI episodes in the population that underwent SOT (34.4%) led to hospital admission, and the occurrence of a VPI was associated with an increased risk for death and/or graft loss (hazard ratio, 2.44; 95% CI, 1.50-3.99; P = .002). In multivariable analysis, age 65 years or older at the time of transplant (incidence rate ratio [IRR], 1.29; 95% CI, 1.02-1.62) and receipt of a lung (IRR, 1.77; 95% CI, 1.38-2.26) or a heart (IRR, 1.40; 95% CI, 1.05-1.88) transplant were associated with an increased risk of VPI occurrence. Conclusions and Relevance In this study, 11.9% of SOT recipients experienced VPIs, and the incidence rate was higher than in the general population. There was significant morbidity and mortality associated with these infections in the population that underwent SOT, which highlights the need for optimizing immunization strategies.
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Affiliation(s)
- Laura N Walti
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
- Division of Infectious Diseases, Multi-Organ Transplant Program, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Catrina Mugglin
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Matteo Mombelli
- Transplantation Center and Service of Infectious Diseases, Lausanne University Hospital, Lausanne, Switzerland
| | - Oriol Manuel
- Transplantation Center and Service of Infectious Diseases, Lausanne University Hospital, Lausanne, Switzerland
| | - Hans H Hirsch
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Nina Khanna
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Nicolas J Mueller
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich and University Zurich, Zurich, Switzerland
| | - Christoph Berger
- Division of Infectious Diseases and Hospital Epidemiology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Katia Boggian
- Division of Infectious Diseases and Hospital Hygiene, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Christian Garzoni
- Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese, Lugano, Switzerland
| | - Dionysios Neofytos
- Transplant Infectious Diseases Unit, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
| | - Christian van Delden
- Transplant Infectious Diseases Unit, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
| | - Mirjam Mäusezahl
- Swiss Federal Office of Public Health, Epidemiological Evaluation and Surveillance Section, Bern, Switzerland
| | - Cédric Hirzel
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
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Herrero-Diez MT, Catalá-López F. [Vaccination coverage, beliefs, and attitudes in transplanted children and adolescents: a mixed-methods systematic review.]. Rev Esp Salud Publica 2023; 97:e202303025. [PMID: 36999242 PMCID: PMC10558112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/07/2023] [Indexed: 04/01/2023] Open
Abstract
OBJECTIVE Vaccine-preventable infectious diseases are a cause of morbidity and mortality in transplanted children. The main objective of this study was to synthesize the available evidence of vaccination coverage in children and adolescents who are candidates or transplant recipients and to analyze beliefs, attitudes, and experiences about vaccination. METHODS A mixed-methods systematic review was performed (Open Science Framework registration: https://osf.io/auqn3/). Searches were conducted in PubMed/MEDLINE, EMBASE, IBECS and LILACS (from January 2000 to August 2021) and in gray literature. Quantitative and qualitative studies reported information on coverage, beliefs, attitudes and/or experiences about recommended vaccines in children who are candidates or recipients of solid organ or hematopoietic progenitor transplantation. Quality assessment was undertaken using Mixed Methods Appraisal Tool (MMAT). A narrative synthesis of the studies was carried out. RESULTS A total of thirty-two studies in thirty-five publications were included. The most studied interventions were vaccines against measles (n=21; 66%) and hepatitis B (n=20; 62%). Vaccination rates showed a high variability for the most represented vaccines (specifically, 2%-100% for measles, 0.4%-100% for hepatitis B, diphtheria-tetanus-pertussis and rubella), with coverages lower than 90% in at least 70% of the studies. The lowest rates were reported in post-transplantation and hematopoietic stem cell transplantation. Only one qualitative study was identified reporting information on beliefs and/or attitudes, although nine quantitative studies explored cognitive aspects. CONCLUSIONS This review shows a high variability in vaccination coverage in children and adolescents who are transplant candidates or recipients, with rates lower than those recommended. Further studies would be needed to identify beliefs and attitudes about immunization in this context.
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Affiliation(s)
- María Teresa Herrero-Diez
- Servicio de Medicina Preventiva y Salud Pública, Hospital Clínico Universitario de Valladolid. Valladolid. España
| | - Ferrán Catalá-López
- Departamento de Planificación y Economía de la Salud, Escuela Nacional de Sanidad, Instituto de Salud Carlos III. Madrid. España
- Departamento de Medicina, Universidad de Valencia/Instituto de Investigación Sanitaria INCLIVA y CIBERSAM. Valencia. España
- Clinical Epidemiology Program, Ottawa Hospital Research Institute. Ottawa. Canadá
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Sintusek P, Thanapirom K, Komolmit P, Poovorawan Y. Eliminating viral hepatitis in children after liver transplants: How to reach the goal by 2030. World J Gastroenterol 2022; 28:290-309. [PMID: 35110951 PMCID: PMC8771616 DOI: 10.3748/wjg.v28.i3.290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/12/2021] [Accepted: 01/06/2022] [Indexed: 02/06/2023] Open
Abstract
Viral hepatitis infections are a great burden in children who have received liver transplant. Hepatotropic viruses can cause liver inflammation that can develop into liver graft fibrosis and cirrhosis over the long term. Immunological reactions due to viral hepatitis infections are associated with or can mimic graft rejection, rendering the condition difficult to manage. Prevention strategies using vaccinations are agreeable to patients, safe, cost-effective and practical. Hence, strategies to eliminate viral hepatitis A and B focus mainly on immunization programmes for children who have received a liver transplant. Although a vaccine has been developed to prevent hepatitis C and E viruses, its use is not licensed worldwide. Consequently, eliminating hepatitis C and E viruses mainly involves early detection in children with suspected cases and effective treatment with antiviral therapy. Good hygiene and sanitation are also important to prevent hepatitis A and E infections. Donor blood products and liver grafts should be screened for hepatitis B, C and E in children who are undergoing liver transplantation. Future research on early detection of viral hepatitis infections should include molecular techniques for detecting hepatitis B and E. Moreover, novel antiviral drugs for eradicating viral hepatitis that are highly effective and safe are needed for children who have undergone liver transplantation.
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Affiliation(s)
- Palittiya Sintusek
- The Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI) Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
- Division of Gastroenterology, Department of Pediatrics, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kessarin Thanapirom
- Division of Gastroenterology, Department of Medicine, Liver Fibrosis and Cirrhosis Research Unit, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
- Center of Excellence in Liver Diseases, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok 10330, Thailand
| | - Piyawat Komolmit
- Division of Gastroenterology, Department of Medicine, Liver Fibrosis and Cirrhosis Research Unit, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
- Center of Excellence in Liver Diseases, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
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