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Torres JP, Santolaya ME. Respiratory viral infections in children with cancer and febrile neutropenia and children undergoing hematopoietic stem cell transplantation. Curr Opin Infect Dis 2024; 37:407-412. [PMID: 39106082 DOI: 10.1097/qco.0000000000001049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
PURPOSE OF REVIEW The scope of this review is to understand the epidemiology and potential role of respiratory viral infections in children with cancer and febrile neutropenia, as well as in children, undergoing hematopoietic stem cell transplantation. Early detection of respiratory viral infections through molecular diagnostic techniques has allowed recent randomized clinical studies to advance the possibility of more rational use of antimicrobials in this susceptible population. RECENT FINDINGS Progress has been made in the early detection of respiratory viruses in episodes of fever and neutropenia in children with cancer. In selected patients who meet specific clinical safety criteria and have negative bacterial cultures, it has been possible to safely and effectively discontinue antimicrobials. This has been validated in recent randomized clinical studies. However, more evidence is still needed for a similar indication in children, undergoing hematopoietic stem cell transplantation with viral respiratory infection episodes. SUMMARY Understanding the role of respiratory viral infections in populations of immunocompromised children may contribute to a more rational use of antimicrobials and, in the near future, may help to decrease antimicrobial resistance in this susceptible population.
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Affiliation(s)
- Juan P Torres
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Hospital Luis Calvo Mackenna, Faculty of Medicine, Universidad de Chile, Santiago, Chile
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2
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Mourad DF, Radwan S, Hamdy R, Elkhashab DM, Kamel MM, Abdel-Moneim AS, Kadry DY. Identification of Lower Respiratory Tract Pathogens in Cancer Patients: Insights into Fatal Outcomes. Microorganisms 2024; 12:1686. [PMID: 39203528 PMCID: PMC11356771 DOI: 10.3390/microorganisms12081686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/06/2024] [Accepted: 08/14/2024] [Indexed: 09/03/2024] Open
Abstract
This study aimed to investigate LRTIs in cancer patients, focusing on pathogen distribution, and outcomes based on tumor types and antimicrobial treatments. The study included 110 cancer patients exhibiting symptoms of lower respiratory tract infections (LRTIs), consisting of 67 males and 43 females across a wide age range from under 1 year to over 60 years old. Exclusion of SARS-CoV-2 infection was conducted before admission. In addition to classical microbiological methods, fast-track detection using Multiplex Real-Time PCR was employed, utilizing the FTD-33 test kit. The findings revealed a diverse landscape of infections, notably Klebsiella pneumoniae, Haemophilus influenzae and Staphylococcus aureus. Parainfluenza 3 and 4 viruses, rhinovirus, influenza A subtype H1N1pdm09, influenza B and C viruses, HCoV-229, HCoV-OC43, and HCoV-HKU1 were infrequently detected. Furthermore, the existence of mixed infection highlighted the complexity of disease conditions in cancer patients. An analysis of antimicrobial treatment highlighted significant variations in fatal outcomes for carbapenem and colistimethate sodium. It was concluded that mixed infections were commonly identified as potential causes of LRTIs among cancer patients, while viral infections were less frequently detected. It underscores the complexity of antimicrobial treatment outcomes.
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Affiliation(s)
- Dalia F. Mourad
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
| | - Samah Radwan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
| | - Rana Hamdy
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo 12613, Egypt
| | - Dina M. Elkhashab
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
| | - Mahmoud M. Kamel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
| | - Ahmed S. Abdel-Moneim
- Department of Microbiology, College of Medicine, Taif University, Al-Taif 21944, Saudi Arabia
| | - Dalia Y. Kadry
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
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Harada N, Sonoda M, Ishimura M, Eguchi K, Kinoshita K, Matsuoka W, Motomura Y, Kaku N, Kawaguchi N, Takeuchi T, Ohga S. Pretransplant ribavirin and interferon-α therapy for rhinovirus interstitial pneumonia in a RAG1-deficient infant. J Infect Chemother 2024; 30:362-365. [PMID: 37944696 DOI: 10.1016/j.jiac.2023.11.003] [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: 06/14/2023] [Revised: 10/16/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
Severe combined immunodeficiency (SCID) is one of the most serious inborn errors of immunity leading to a fatal infection in early infancy. Allogeneic hematopoietic cell transplantation (HCT) or elective gene therapy prior to infection or live-attenuated vaccination is the current standard of curative treatment. Even in the era of newborn screening for SCID, pretransplant control of severe infection is challenging for SCID. Multiple pathogens are often isolated from immunocompromised patients, and limited information is available regarding antiviral strategies to facilitate curative HCT. We herein present a case of successfully controlled pretransplant pneumonia after ribavirin and interferon-α therapy in an infant with RAG1-deficiency. A four-month-old infant presented with severe interstitial pneumonia due to a co-infection of rhinovirus and Pneumocystis jirovecii. The tentative diagnosis of SCID prompted to start antibiotics and trimethoprim-sulfamethoxazole on ventilatory support. Because of the progressive respiratory failure four days after treatment, ribavirin and then pegylated interferon-α were started. He showed a drastic response to the treatment that led to a curative HCT 32 days after admission. This patient received the genetic diagnosis of RAG1-deficiency. Currently, he is an active 3-year-old boy with normal growth and development. The review of literature indicated that rhinovirus had a comparable or rather greater impact on the mortality of pediatric patients than respiratory syncytial virus. Considered the turn-around time to the genetic diagnosis of SCID, prompt ribavirin plus interferon-α therapy may help to control severe rhinovirus pneumonia and led to the early curative HCT for the affected infants.
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Affiliation(s)
- Nobutaka Harada
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Motoshi Sonoda
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masataka Ishimura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Katsuhide Eguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keishiro Kinoshita
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Wakato Matsuoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Naoki Kawaguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Division of Pediatrics, Oita Prefectural Hospital, Oita, Japan
| | | | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Keller MD, Schattgen SA, Chandrakasan S, Allen EK, Jensen-Wachspress MA, Lazarski CA, Qayed M, Lang H, Hanley PJ, Tanna J, Pai SY, Parikh S, Berger SI, Gottschalk S, Pulsipher MA, Thomas PG, Bollard CM. Secondary bone marrow graft loss after third-party virus-specific T cell infusion: Case report of a rare complication. Nat Commun 2024; 15:2749. [PMID: 38553461 PMCID: PMC10980733 DOI: 10.1038/s41467-024-47056-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/20/2023] [Indexed: 04/02/2024] Open
Abstract
Virus-specific T cells (VST) from partially-HLA matched donors have been effective for treatment of refractory viral infections in immunocompromised patients in prior studies with a good safety profile, but rare adverse events have been described. Here we describe a unique and severe adverse event of VST therapy in an infant with severe combined immunodeficiency, who receives, as part of a clinical trial (NCT03475212), third party VSTs for treating cytomegalovirus viremia following bone marrow transplantation. At one-month post-VST infusion, rejection of graft and reversal of chimerism is observed, as is an expansion of T cells exclusively from the VST donor. Single-cell gene expression and T cell receptor profiling demonstrate a narrow repertoire of predominantly activated CD4+ T cells in the recipient at the time of rejection, with the repertoire overlapping more with that of peripheral blood from VST donor than the infused VST product. This case thus demonstrates a rare but serious side effect of VST therapy.
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Affiliation(s)
- Michael D Keller
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
- Division of Allergy and Immunology, Children's National Hospital, Washington, DC, USA
- GW Cancer Center, George Washington University, Washington, DC, USA
| | - Stefan A Schattgen
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | | | - E Kaitlynn Allen
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | | | - Christopher A Lazarski
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
| | - Muna Qayed
- Aflac Cancer and Blood Disorders Center, Children's Hospital of Atlanta, Atlanta, GA, USA
| | - Haili Lang
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
| | - Patrick J Hanley
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
- GW Cancer Center, George Washington University, Washington, DC, USA
- Division of Blood and Marrow Transplantation, Children's National Hospital, Washington, DC, USA
| | - Jay Tanna
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
- Division of Blood and Marrow Transplantation, Children's National Hospital, Washington, DC, USA
| | - Sung-Yun Pai
- Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Suhag Parikh
- Aflac Cancer and Blood Disorders Center, Children's Hospital of Atlanta, Atlanta, GA, USA
| | - Seth I Berger
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC, USA
| | - Stephen Gottschalk
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Michael A Pulsipher
- Division of Pediatric Hematology/Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Paul G Thomas
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Catherine M Bollard
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA.
- GW Cancer Center, George Washington University, Washington, DC, USA.
- Division of Blood and Marrow Transplantation, Children's National Hospital, Washington, DC, USA.
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Riccò M, Parisi S, Corrado S, Marchesi F, Bottazzoli M, Gori D. Respiratory Syncytial Virus Infections in Recipients of Bone Marrow Transplants: A Systematic Review and Meta-Analysis. Infect Dis Rep 2024; 16:317-355. [PMID: 38667752 PMCID: PMC11050314 DOI: 10.3390/idr16020026] [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: 01/22/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Human Respiratory Syncytial Virus (RSV) is a common cause of respiratory tract infections. Usually associated with infants and children, an increasing amount of evidence suggests that RSV can cause substantial morbidity and mortality in immunocompromised individuals, including recipients of bone marrow transplantation (BMT). The present systematic review was therefore designed in accordance with the PRISMA guidelines to collect available evidence about RSV infections in BMT recipients. Three medical databases (PubMed, Embase, and MedRxiv) were therefore searched for eligible observational studies published up to 30 September 2023 and collected cases were pooled in a random-effects model. Heterogeneity was assessed using I2 statistics. Reporting bias was assessed by means of funnel plots and regression analysis. Overall, 30 studies were retrieved, including 20,067 BMT cases and 821 RSV infection episodes. Of them, 351 were lower respiratory tract infections, and a total of 78 RSV-related deaths were collected. A pooled attack rate of 5.40% (95% confidence interval [95%CI] 3.81 to 7.60) was identified, with a corresponding incidence rate of 14.77 cases per 1000 person-years (95%CI 9.43 to 20.11), and a case fatality ratio (CFR) of 7.28% (95%CI 4.94 to 10.60). Attack rates were higher in adults (8.49%, 95%CI 5.16 to 13.67) than in children (4.79%, 95%CI 3.05 to 7.45), with similar CFR (5.99%, 95%CI 2.31 to 14.63 vs. 5.85%, 95%CI 3.35 to 10.02). By assuming RSV attack rates as a reference group, influenza (RR 0.518; 95%CI 0.446 to 0.601), adenovirus (RR 0.679, 95%CI 0.553 to 0.830), and human metapneumovirus (RR 0.536, 95%CI 0.438 to 0.655) were associated with a substantially reduced risk for developing corresponding respiratory infection. Despite the heterogeneous settings and the uneven proportion of adult and pediatric cases, our study has identified high attack rates and a substantial CFR of RSV in recipients of BMT, stressing the importance of specifically tailored preventive strategies and the need for effective treatment options.
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Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | | | - Silvia Corrado
- ASST Rhodense, Dipartimento della donna e Area Materno-Infantile, UOC Pediatria, 20024 Milan, Italy;
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Davide Gori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
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Bahakel H, Waghmare A, Madan RP. Impact of Respiratory Viral Infections in Transplant Recipients. J Pediatric Infect Dis Soc 2024; 13:S39-S48. [PMID: 38417082 DOI: 10.1093/jpids/piad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/23/2023] [Indexed: 03/01/2024]
Abstract
Respiratory viral infections (RVIs) are among the leading cause of morbidity and mortality in pediatric hematopoietic stem cell transplant (HCT) and solid organ transplant (SOT) recipients. Transplant recipients remain at high risk for super imposed bacterial and fungal pneumonia, chronic graft dysfunction, and graft failure as a result of RVIs. Recent multicenter retrospective studies and prospective studies utilizing contemporary molecular diagnostic techniques have better delineated the epidemiology and outcomes of RVIs in pediatric transplant recipients and have advanced the development of preventative vaccines and treatment interventions in this population. In this review, we will define the epidemiology and outcomes of RVIs in SOT and HSCT recipients, describe the available assays for diagnosing a suspected RVI, highlight evolving management and vaccination strategies, review the risk of donor derived RVI in SOT recipients, and discuss considerations for delaying transplantation in the presence of an RVI.
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Affiliation(s)
- Hannah Bahakel
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Alpana Waghmare
- Department of Pediatrics, University of Washington, Fred Hutchinson Cancer Research Center; Department of Infectious Diseases, Seattle Children's Hospital, Seattle, WA, USA
| | - Rebecca Pellet Madan
- New York University Grossman School of Medicine; Department of Infectious Diseases, Hassenfeld Children's Hospital, New York, NY, USA
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Kim SR, Waghmare A, Hijano DR. Approach to hematopoietic cell transplant candidates with respiratory viral detection. Front Pediatr 2024; 11:1339239. [PMID: 38304442 PMCID: PMC10830789 DOI: 10.3389/fped.2023.1339239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/19/2023] [Indexed: 02/03/2024] Open
Abstract
The management of respiratory viruses prior to hematopoietic cell transplant (HCT) can be controversial and requires special consideration of host factors, transplant parameters, and the specific respiratory virus (RV). In the setting of adenovirus (ADV), human metapneumovirus (HMPV), influenza, parainfluenza virus (PIV), and respiratory syncytial virus (RSV) detection prior to hematopoietic cell transplant (HCT), clinical practice guidelines recommend transplant delay when possible; however, there is much more ambiguity when other respiratory viruses, such as seasonal coronaviruses (CoVs), human rhinovirus (HRV), and SARS-CoV-2, are detected. Our aims for this review include detailing clinical practical guidelines and reviewing current literature on pre-transplant respiratory viral infections (RVIs), including antiviral therapies and prevention strategies, when available. We will center our discussion on three representative clinical scenarios, with the goal of providing practical guidance to clinicians.
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Affiliation(s)
- Sara R. Kim
- Division of Pediatric Infectious Diseases, Seattle Children’s Hospital, Seattle, WA, United States
- Department of Pediatrics, University of Washington, Seattle, WA, United States
| | - Alpana Waghmare
- Division of Pediatric Infectious Diseases, Seattle Children’s Hospital, Seattle, WA, United States
- Department of Pediatrics, University of Washington, Seattle, WA, United States
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Diego R. Hijano
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, TN, United States
- Department of Pediatrics, University of Tennessee Health Sciences Center, Memphis, TN, United States
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Alzahrani RS, Alzahrani M, Shuraim W, Aldibasi O, Albarrak K, Habib A, Ahmed M, Alsadi H, Alahmari B, Alsaedy A, Bosaeed M. Outcome of Respiratory Viral Infections in Hematopoietic Stem Cell Transplant Recipients. Transplant Proc 2024; 56:186-190. [PMID: 38242760 DOI: 10.1016/j.transproceed.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 10/01/2023] [Accepted: 10/22/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND Respiratory viral infections (RVIs) commonly cause morbidity and mortality in hematopoietic stem cell transplant (HSCT) recipients. This study aimed at the prevalence of RVIs in adult HSCT recipients and their outcomes. METHODS A retrospective observational cohort study was conducted on all adult patients who underwent HSCT in the period between January 2016 and December 2020. Data were retrospectively abstracted from electronic medical records from a total of 400 patients. All cases with polymerase chain reaction-confirmed RVIs based on real-time reverse transcription polymerase chain reaction were included in the data analysis. RESULT A total of 79 patients had positive results. Sixty-three patients had allogeneic stem cell transplants. Women were 53% of the patients, and the mean age was 32 years (±13.5). The prevalence of documented respiratory virus infections was around 20% during the 4 years of the study. The most common virus was rhinovirus (60.76%), followed by respiratory syncytial virus (15.19%), then parainfluenza (11.39%). Among the 9 patients (11%) who required intensive care unit admission, 67% had lymphopenia (P = .03), 71% had abnormal chest computed tomography scan with pleural effusion (P = .03), 22% required renal support (P = .057), and 2 patients (22%) died (P = .057). CONCLUSIONS The study highlights the associated morbidity and mortality with RVIs among HSCT recipients and the need for more preventive measures and treatment studies.
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Affiliation(s)
- Rahmah S Alzahrani
- Infectious Diseases Division, Internal Medicine Department, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.
| | - Mohsen Alzahrani
- Divisions of Adult Hematology and SCT, Department of Oncology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Wadi Shuraim
- Infectious Diseases Division, Internal Medicine Department, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; Ministry of Health, Riyadh, Saudi Arabia
| | - Omar Aldibasi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Khaled Albarrak
- Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Abdulrahman Habib
- Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Mazen Ahmed
- Divisions of Adult Hematology and SCT, Department of Oncology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Husam Alsadi
- Divisions of Adult Hematology and SCT, Department of Oncology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Bader Alahmari
- Divisions of Adult Hematology and SCT, Department of Oncology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Abdulrahman Alsaedy
- Infectious Diseases Division, Internal Medicine Department, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Mohammad Bosaeed
- Infectious Diseases Division, Internal Medicine Department, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
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Risk factors for a severe disease course in children with SARS-COV-2 infection following hematopoietic cell transplantation in the pre-Omicron period: a prospective multinational Infectious Disease Working Party from the European Society for Blood and Marrow Transplantation group (EBMT) and the Spanish Group of Hematopoietic Stem Cell Transplantation (GETH) study. Bone Marrow Transplant 2023; 58:558-566. [PMID: 36849806 PMCID: PMC9969031 DOI: 10.1038/s41409-023-01941-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/28/2023]
Abstract
Risk factors for severe SARS-Cov-2 infection course are poorly described in children following hematopoietic cell transplantation (HCT). In this international study, we analyzed factors associated with a severe course (intensive care unit (ICU) admission and/or mortality) in post-HCT children. Eighty-nine children (58% male; median age 9 years (min-max 1-18)) who received an allogeneic (85; 96%) or an autologous (4; 4%) HCT were reported from 28 centers (18 countries). Median time from HCT to SARS-Cov-2 infection was 7 months (min-max 0-181). The most common clinical manifestations included fever (37; 42%) and cough (26; 29%); 37 (42%) were asymptomatic. Nine (10%) children following allo-HCT required ICU care. Seven children (8%) following allo-HCT, died at a median of 22 days after SARS-Cov-2 diagnosis. In a univariate analysis, the probability of a severe disease course was higher in allo-HCT children with chronic GVHD, non-malignant disease, immune suppressive treatment (specifically, mycophenolate), moderate immunodeficiency score, low Lansky score, fever, cough, coinfection, pulmonary radiological findings, and high C-reactive protein. In conclusion, SARS-Cov-2 infection in children following HCT was frequently asymptomatic. Despite this, 10% needed ICU admission and 8% died in our cohort. Certain HCT, underlying disease, and SARS-Cov-2 related factors were associated with a severe disease course.
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van der Velden FJS, van Delft F, Owens S, Llevadias J, McKean M, Pulford L, Taha Y, Williamson G, Campbell-Hewson Q, Hambleton S, Payne R, Duncan C, Johnston C, Spegarova J, Emonts M. Case Report: Severe Acute Pulmonary COVID-19 in a Teenager Post Autologous Hematopoietic Stem Cell Transplant. Front Pediatr 2022; 10:809061. [PMID: 35311038 PMCID: PMC8927762 DOI: 10.3389/fped.2022.809061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/27/2022] [Indexed: 12/15/2022] Open
Abstract
Pulmonary severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in children is generally described as mild, and SARS-CoV-2 infection in immunocompromised children are observed as generally mild as well. A small proportion of pediatric patients will become critically ill due to (cardio)respiratory failure and require intensive care treatment. We report the case of a teenager with Hodgkin's lymphoma who acquired SARS-CoV-2 (detected by PCR) on the day of her autologous stem cell transplant and developed acute respiratory distress syndrome, successfully treated with a combination of antivirals, immunomodulation with steroids and biologicals, and ECMO.
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Affiliation(s)
- Fabian J. S. van der Velden
- Paediatric Immunology, Infectious Diseases and Allergy, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Frederik van Delft
- Paediatric Oncology, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Stephen Owens
- Paediatric Immunology, Infectious Diseases and Allergy, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Judit Llevadias
- Paediatric Intensive Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Michael McKean
- Paediatric Respiratory Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Lindsey Pulford
- Paediatric Intensive Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Yusri Taha
- Virology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Grace Williamson
- Paediatric Intensive Care, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Quentin Campbell-Hewson
- Paediatric Oncology, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Sophie Hambleton
- Paediatric Immunology, Infectious Diseases and Allergy, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rebecca Payne
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Christopher Duncan
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- Infectious Disease and Tropical Medicine, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Catriona Johnston
- Pharmacy, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Jarmila Spegarova
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Marieke Emonts
- Paediatric Immunology, Infectious Diseases and Allergy, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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11
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Hanley S, Odeniyi F, Feemster K, Coffin SE, Sammons JS. Epidemiology and Risk Factors for Healthcare-Associated Viral Infections in Children. J Pediatric Infect Dis Soc 2021; 10:941-950. [PMID: 34313773 DOI: 10.1093/jpids/piab015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/05/2021] [Indexed: 11/13/2022]
Abstract
BACKGROUND Healthcare-associated viral infections (HA-VIs) are common in hospitalized children and are increasingly recognized as a cause of preventable harm; however, the epidemiology and modifiable risk factors for pediatric HA-VIs are poorly understood. METHODS We performed a retrospective case-control study to identify risk factors and outcomes associated with pediatric HA-VIs at a quaternary care children's hospital. HA-VI surveillance was performed hospital-wide using Centers for Disease Control and Prevention (CDC) definitions. We abstracted data from the electronic medical record and conducted semi-structured interviews with patient caregivers to identify potential exposures 4 days before the HA-VI onset. RESULTS During the 20-month study period, we identified 143 eligible patients with HA-VIs and enrolled 64 matched case-control pairs. In total, 79 viruses were identified among 64 case patients. During the exposure period, case, as compared with control, patients were more frequently exposed to a sick visitor (odds ratio = 5.19; P = .05). During the 7 days after the HA-VI onset, case, as compared with control, patients had a greater length of antibacterial therapy per patient-days (mean 411 vs 159) as well as greater days of antibacterial therapy per patient-days (mean 665 vs 247). CONCLUSIONS The results of this study show that exposure to a sick visitor is a potentially modifiable risk factor for pediatric HA-VIs. Hospitalized children with HA-VIs also have increased exposure to antibacterial agents when compared with matched controls. Our findings suggest that hospital policies may need to be revised, with emphasis on visitor screening and partnership with families, to reduce the incidence of pediatric HA-VIs during hospitalization.
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Affiliation(s)
- Samantha Hanley
- Pediatric Infectious Diseases Epidemiology and Antimicrobial Stewardship (IDEAS) Research Program, Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Folasade Odeniyi
- Pediatric Infectious Diseases Epidemiology and Antimicrobial Stewardship (IDEAS) Research Program, Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kristen Feemster
- Pediatric Infectious Diseases Epidemiology and Antimicrobial Stewardship (IDEAS) Research Program, Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Disease Control, Philadelphia Department of Public Health, Philadelphia, Pennsylvania, USA
| | - Susan E Coffin
- Pediatric Infectious Diseases Epidemiology and Antimicrobial Stewardship (IDEAS) Research Program, Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Disease Control, Philadelphia Department of Public Health, Philadelphia, Pennsylvania, USA.,Department of Infection Prevention and Control, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Julia S Sammons
- Pediatric Infectious Diseases Epidemiology and Antimicrobial Stewardship (IDEAS) Research Program, Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Infection Prevention and Control, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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12
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Jarmoliński T, Matkowska‐Kocjan A, Rosa M, Olejnik I, Gorczyńska E, Kałwak K, Ussowicz M. SARS-CoV-2 viral clearance during bone marrow aplasia after allogeneic hematopoietic stem cell transplantation-A case report. Pediatr Transplant 2021; 25:e13875. [PMID: 32949079 PMCID: PMC7537051 DOI: 10.1111/petr.13875] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/30/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022]
Abstract
Respiratory viral infections are known causes of mortality after allogeneic hematopoietic stem cell transplantation (HSCT). Here, we report a unique case of a child with viral pneumonia caused by coinfection with human metapneumovirus (MPV), respiratory syncytial virus (RSV), and SARS-CoV-2 after HSCT. A 9-year-old girl with acute lymphoblastic leukemia underwent allogeneic HSCT from a matched, unrelated donor. During the post-transplant period, in profound leukopenia (below 10 leukocytes/µL), she was diagnosed with SARS-CoV-2, MPV, and RSV pneumonia and was treated with ribavirin and chloroquine. Before leukocyte recovery, the girl became asymptomatic, and SARS-CoV-2 and RSV clearance was achieved. The shedding of SARS-CoV-2 stopped before immune system recovery, and one may hypothesize that the lack of an inflammatory response might have been a contributing factor to the mild clinical course. Post-transplant care in HSCT recipients with COVID-19 infection is feasible in regular transplant units, provided the patient does not present with respiratory failure. Early and repeated testing for SARS-CoV-2 in post-transplant patients with concomitant infection mitigation strategies should be considered in children after HSCT who develop fever, respiratory symptoms, and perhaps gastrointestinal symptoms to control the spread of COVID-19 both in patients and in healthcare workers in hospital environments. Training of staff and the availability of personal protective equipment are crucial for containing SARS-CoV-2 infection.
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Affiliation(s)
- Tomasz Jarmoliński
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
| | | | - Monika Rosa
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
| | - Igor Olejnik
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
| | - Ewa Gorczyńska
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
| | - Krzysztof Kałwak
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
| | - Marek Ussowicz
- Department of Pediatric Bone Marrow Transplantation, Oncology, and HematologyWroclaw Medical UniversityWroclawPoland
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13
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Meron GT, Almog R, Kassis I, Ben Barak A, Shachor-Meyouhas Y. Viral respiratory infection among children treated in hemato-oncology department – Clinical and epidemiological characteristics. PEDIATRIC HEMATOLOGY ONCOLOGY JOURNAL 2021. [DOI: 10.1016/j.phoj.2021.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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14
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Soni M, Migliori E, Assal A, Chan HT, Ciubotariu R, Pan JB, Cicero K, Pereira M, Mapara MY, Muranski P. Development of T-cell immunity in a liver and hematopoietic stem cell transplant recipient following coronavirus disease 2019 infection. Cytotherapy 2021; 23:980-984. [PMID: 34183244 PMCID: PMC8165078 DOI: 10.1016/j.jcyt.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 11/07/2022]
Abstract
The outbreak of coronavirus disease 2019 (COVID-19) has disproportionately affected patients with comorbidities, including recipients of solid organ and hematopoietic stem cell transplants (SCT). Upon recovery from COVID-19, the degree of the immunological protection from reinfection remains unclear. Here we describe a 33-year-old patient with erythropoietic protoporphyria (EPP) who had undergone liver transplantation with splenectomy followed by allogeneic SCT in 2013 after an initial failed liver and umbilical cord transplant. The patient developed mild upper respiratory symptoms in the spring of 2020 and was found to have anti-SARS-CoV2 antibodies suggesting past infection. A comprehensive analysis of T cell functionality in peripheral blood from this patient revealed robust in vitro responses against SARS CoV2 antigens Spike (S) 1 and 2, membrane (M) and nucleoprotein (NP), comparable to the reactivity against common antigens from CMV, EBV, Ad and BK viruses, while only low reactivity was seen in healthy donors without documented history of COVID-19. Moreover, the patient displayed a marked recognition of counterpart antigens from related human coronaviruses (hCoVs) 229E, OC43, NL63 and HKU1. Thus, despite lifelong immunosuppression, this survivor of COVID-19 retained a remarkable degree of immunocompetence and showed broad-spectrum T cell memory specific for SARS-CoV2 and related hCoVs including less studied hCoV M and NP antigens. The study highlights the role of cellular immunity after natural COVID-19 infection, suggesting broader use of T cell assays as a tool for risk stratification, measurement of immunocompetence and/or post-infection or post-vaccination protection, and possible T cell-based adoptive immunotherapy strategies in high-risk patients.
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Affiliation(s)
- Mithil Soni
- Columbia Center for Translational Immunology (CCTI), Division of Hematology/ Oncology, Columbia University Medical Center, New York, New York, USA
| | - Edoardo Migliori
- Columbia Center for Translational Immunology (CCTI), Division of Hematology/ Oncology, Columbia University Medical Center, New York, New York, USA
| | - Amer Assal
- Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York, USA; Department of Medicine, Blood and Marrow Transplantation and Cell Therapy Program, Columbia University Irving Medical Center, New York, New York, USA
| | - Hei T Chan
- Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York, USA
| | - Rodica Ciubotariu
- Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York, USA
| | - Jian B Pan
- Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York, USA
| | - Kara Cicero
- Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York, USA
| | - Marcus Pereira
- Department of Medicine, Division of Infectious Disease, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Markus Y Mapara
- Columbia Center for Translational Immunology (CCTI), Division of Hematology/ Oncology, Columbia University Medical Center, New York, New York, USA; Department of Medicine, Blood and Marrow Transplantation and Cell Therapy Program, Columbia University Irving Medical Center, New York, New York, USA
| | - Pawel Muranski
- Columbia Center for Translational Immunology (CCTI), Division of Hematology/ Oncology, Columbia University Medical Center, New York, New York, USA; Hematology Branch, National Heart, Lung, and Blood Institute, Bethesda, MD, United States..
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15
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Boonyaratanakornkit J, Singh S, Weidle C, Rodarte J, Bakthavatsalam R, Perkins J, Stewart-Jones GBE, Kwong PD, McGuire AT, Pancera M, Taylor JJ. Protective antibodies against human parainfluenza virus type 3 infection. MAbs 2021; 13:1912884. [PMID: 33876699 PMCID: PMC8078717 DOI: 10.1080/19420862.2021.1912884] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Human parainfluenza virus type III (HPIV3) is a common respiratory pathogen that afflicts children and can be fatal in vulnerable populations, including the immunocompromised. There are currently no effective vaccines or therapeutics available, resulting in tens of thousands of hospitalizations per year. In an effort to discover a protective antibody against HPIV3, we screened the B cell repertoires from peripheral blood, tonsils, and spleen from healthy children and adults. These analyses yielded five monoclonal antibodies that potently neutralized HPIV3 in vitro. These HPIV3-neutralizing antibodies targeted two non-overlapping epitopes of the HPIV3 F protein, with most targeting the apex. Prophylactic administration of one of these antibodies, PI3-E12, resulted in potent protection against HPIV3 infection in cotton rats. Additionally, PI3-E12 could also be used therapeutically to suppress HPIV3 in immunocompromised animals. These results demonstrate the potential clinical utility of PI3-E12 for the prevention or treatment of HPIV3 in both immunocompetent and immunocompromised individuals.
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Affiliation(s)
- Jim Boonyaratanakornkit
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Suruchi Singh
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Connor Weidle
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Justas Rodarte
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Jonathan Perkins
- Department of Otolaryngology, University of Washington, Seattle, Washington, USA
| | - Guillaume B E Stewart-Jones
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Washington, USA
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Washington, USA
| | - Andrew T McGuire
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Marie Pancera
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Washington, USA
| | - Justin J Taylor
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
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16
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Moret F, Marschall J, Atkinson A, Farag S, Zimmerli S, Pabst T, Sommerstein R. Characteristics of respiratory virus infections in autologous hematopoietic stem cell transplantation patients, a prospective study, Bern, Switzerland, 2015-2017. Infect Dis (Lond) 2021; 53:274-280. [PMID: 33475447 DOI: 10.1080/23744235.2021.1871642] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The epidemiology of respiratory virus infections (RVI) in patients undergoing autologous haematopoietic stem cell transplantation (auto-SCT) is not well described. METHODS Our goal was to describe the epidemiology of respiratory virus infections (RVI) in patients undergoing autologous haematopoietic stem cell transplantation (auto-SCT) in a single tertiary centre observation study during two respiratory virus seasons (2015-2017). All symptomatic auto-SCT patients were tested for RVI by nasopharyngeal swab. RESULTS 156 transplantation episodes were included, 69% were male and, the median age was 57 years. We detected 19 RVIs in 156 transplantation episodes (12%). The median time to RVI after hospitalization was 13 days [IQR 7-13] and 15/19 (79%) had a possible nosocomial origin (occurrence ≥ 5 days after admission). The nosocomial infections included 5/15 (33%) 'severe' RVIs (3 influenza viruses, 1 parainfluenza virus, and 1 adenovirus) as well as 10/15 (66%) non-severe virus infections (including human rhinovirus and human coronavirus). CONCLUSION In approximately 10% of auto-SCT transplantation episodes, an RVI with likely nosocomial origin was detected and included 'severe viruses' such as influenza. Our study suggests that infection prevention measures in auto-SCT patients can be improved. ABBREVIATIONS AdV: adenovirus; ALL: acute lymphatic leukaemia; AML: acute myeloid leukaemia; auto-SCT: autologous haematopoietic stem cell transplantation; hCoV: human coronavirus; HD: Hodgkin's disease; hMPV: human metapneumovirus; HRV: human rhinovirus; HSCT: allogeneic haematopoietic stem cell transplantation; IQR: interquartile range; GCT: germ cell tumour; MM: multiple myeloma; NHL: non-Hodgkin lymphoma; PIV: parainfluenza virus; RSV: respiratory syncytial virus.
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Affiliation(s)
- Fabienne Moret
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jonas Marschall
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andrew Atkinson
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Sarah Farag
- Department of Medical Oncology, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Stefan Zimmerli
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thomas Pabst
- Department of Medical Oncology, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Rami Sommerstein
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
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17
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Alonso L, Méndez-Echevarría A, Rudilla F, Mozo Y, Soler-Palacin P, Sisinni L, Bueno D, Riviere J, de Paz R, Sánchez-Zapardiel E, Querol S, Rodriguez-Pena R, López-Granados E, Gimeno R, Díaz de Heredia C, Pérez-Martínez A. Failure of Viral-Specific T Cells Administered in Pre-transplant Settings in Children with Inborn Errors of Immunity. J Clin Immunol 2021; 41:748-755. [PMID: 33462728 DOI: 10.1007/s10875-020-00961-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 12/29/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE Use of adoptive immunotherapy with virus-specific T cells (VST) in patients with inborn errors of immunity prior to hematopoietic stem cell transplantation (HSCT) has been reported in few patients. We report our experience, reviewing all the cases previously reported. METHODS We report four children with inborn errors of immunity who received VST infusion in a pre-HSCT setting in two reference centers in Spain and review all inborn errors of immunity cases previously reported. RESULTS Taking into account our four cases, nine children have been reported to receive VST prior to HSCT to date: 3 severe combined immunodeficiency, 2 CTPS1 deficiency, 1 dyskeratosis congenital, 1 ORAI1 deficiency, 1 Rothmund-Thomson syndrome, and 1 combined immunodeficiency without confirmed genetic defect. In four patients, immunotherapy resulted in clinical improvement, allowing to proceed to HSCT. In these cases, the infusion was started closely to viral diagnosis [mean time 28 days (IQR; 17-52 days)], and the VST was followed shortly thereafter by HSCT [mean time 28 days (IQR; 10-99 days)]. Viremia was controlled after HSCT in two cases (performed 7 and 36 days after the infusion). Multiple infusions were required in many cases. Five out of nine patients died before receiving HSCT. These patients presented with a prolonged and uncontrolled infection before VST administration [mean time from viral diagnosis to VST infusion was 176 days (IQR; 54-1687)]. CONCLUSIONS In patients with inborn errors of immunity, the efficacy of VST for treating disseminated viral infections in pre-transplant settings seems to have a limited efficacy. However, this therapy could be used in a pre-emptive setting before severe viral disease occurs or closely to HSCT.
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Affiliation(s)
- Laura Alonso
- HSCT Department, Hospital Vall d'Hebron, Barcelona, Spain
| | - Ana Méndez-Echevarría
- Paediatric Infectious Diseases Department, La Paz University Hospital, Madrid, Spain. .,Translational Research Network in Pediatric Infectious Diseases (RITIP), Paseo de la Castellana 261, 28046, Madrid, Spain.
| | - Francesc Rudilla
- Immunogenetics and Histocompatibility Laboratory, Banc de Sang i Teixits, Barcelona, Spain
| | - Yasmina Mozo
- Paediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain.,Translational Research in Pediatric Oncology, Hematopoietic Transplantation and Cell Therapy, La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Pere Soler-Palacin
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Vall d'Hebron Research Institute, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,Jeffrey Model Foundation Excellence Center, Barcelona, Spain
| | - Luisa Sisinni
- Paediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain.,Translational Research in Pediatric Oncology, Hematopoietic Transplantation and Cell Therapy, La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - David Bueno
- Paediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain.,Translational Research in Pediatric Oncology, Hematopoietic Transplantation and Cell Therapy, La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Jacques Riviere
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Vall d'Hebron Research Institute, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,Jeffrey Model Foundation Excellence Center, Barcelona, Spain
| | - Raquel de Paz
- Hematology Department, La Paz University Hospital, Madrid, Spain
| | - Elena Sánchez-Zapardiel
- Immunology Department, La Paz University Hospital, Madrid, Spain.,IdiPAZ Institute for Health Research, Madrid, Spain
| | - Sergi Querol
- Cellular Therapy Unit, Cord Blood Bank, Centre Frederic Duran i Jordà, Barcelona, Spain
| | - Rebeca Rodriguez-Pena
- Immunology Department, La Paz University Hospital, Madrid, Spain.,IdiPAZ Institute for Health Research, Madrid, Spain
| | - Eduardo López-Granados
- Immunology Department, La Paz University Hospital, Madrid, Spain.,IdiPAZ Institute for Health Research, Madrid, Spain
| | - Ramón Gimeno
- Laboratory of Immunology, Department of Pathology, Hospital del Mar, Barcelona, Spain
| | | | - Antonio Pérez-Martínez
- Paediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain.,Translational Research in Pediatric Oncology, Hematopoietic Transplantation and Cell Therapy, La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
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18
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Ukonmaanaho EM, Alexandersson A, Mannonen L, Lautenschlager I, Taskinen M, Koskenvuo M. Respiratory viruses after paediatric allogenic haematopoietic stem cell transplantation. Infect Dis (Lond) 2020; 53:214-217. [PMID: 33180668 DOI: 10.1080/23744235.2020.1847319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Elli-Maija Ukonmaanaho
- Division of Pediatric Hematology and Oncology, Oulu University Hospital, Oulu, Finland.,University of Helsinki, Helsinki, Finland
| | - Adam Alexandersson
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Laura Mannonen
- HUS Diagnostic Center, HUSLAB, Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Irmeli Lautenschlager
- Department of Virology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mervi Taskinen
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna Koskenvuo
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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19
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Boonyaratanakornkit J, Vivek M, Xie H, Pergam SA, Cheng GS, Mielcarek M, Hill JA, Jerome KR, Limaye AP, Leisenring W, Boeckh MJ, Waghmare A. Predictive Value of Respiratory Viral Detection in the Upper Respiratory Tract for Infection of the Lower Respiratory Tract With Hematopoietic Stem Cell Transplantation. J Infect Dis 2020; 221:379-388. [PMID: 31541573 PMCID: PMC7107470 DOI: 10.1093/infdis/jiz470] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/11/2019] [Indexed: 12/30/2022] Open
Abstract
Background Hematopoietic cell transplant (HCT) recipients are frequently infected with respiratory viruses (RVs) in the upper respiratory tract (URT), but the concordance between URT and lower respiratory tract (LRT) RV detection is not well characterized. Methods Hematopoietic cell transplant candidates and recipients with respiratory symptoms and LRT and URT RV testing via multiplex PCR from 2009 to 2016 were included. Logistic regression models were used to analyze risk factors for LRT RV detection. Results Two-hundred thirty-five HCT candidates or recipients had URT and LRT RV testing within 3 days. Among 115 subjects (49%) positive for a RV, 37% (42 of 115) had discordant sample pairs. Forty percent (17 of 42) of discordant pairs were positive in the LRT but negative in the URT. Discordance was common for adenovirus (100%), metapneumovirus (44%), rhinovirus (34%), and parainfluenza virus type 3 (28%); respiratory syncytial virus was highly concordant (92%). Likelihood of LRT detection was increased with URT detection (oods ratio [OR] = 73.7; 95% confidence interval [CI], 26.7–204) and in cytomegalovirus-positive recipients (OR = 3.70; 95% CI, 1.30–10.0). Conclusions High rates of discordance were observed for certain RVs. Bronchoalveolar lavage sampling may provide useful diagnostic information to guide management in symptomatic HCT candidates and recipients.
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Affiliation(s)
- Jim Boonyaratanakornkit
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Meghana Vivek
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Hu Xie
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Steven A Pergam
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Guang-Shing Cheng
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Marco Mielcarek
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Joshua A Hill
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Keith R Jerome
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Laboratory Medicine, University of Washington, Seattle, Washington, USA
| | - Ajit P Limaye
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Wendy Leisenring
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Michael J Boeckh
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Alpana Waghmare
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Pediatrics, University of Washington, Seattle, Washington, USA.,Seattle Children's Hospital, Seattle, Washington, USA
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20
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Schuster JE, Banerjee D, Ahmed I, Selvarangan R. Frequency of asymptomatic and symptomatic respiratory virus detection in pediatric hematopoietic cell transplant patients. Pediatr Transplant 2020; 24:e13732. [PMID: 32418305 DOI: 10.1111/petr.13732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/04/2020] [Accepted: 04/20/2020] [Indexed: 12/11/2022]
Abstract
Respiratory viral infections are common and can cause significant morbidity and mortality in pediatric patients undergoing hematopoietic cell transplantation (HCT). The prevalence of disease has been primarily identified from retrospective studies using standard-of-care specimens. The incidence of both asymptomatic respiratory viral detection and symptomatic respiratory viral detection in this high-risk population is not well described. We performed longitudinal, active, prospective surveillance in pediatric HCT patients. Subjects underwent weekly midturbinate swabs (MTSs) for the detection of 18 respiratory viruses and subtypes peri-HCT and 100 days post-HCT. Clinical data were obtained from the medical record. From September 2015 to February 2017, 24 children underwent 29 HCT, and 284 MTSs were collected. Forty-two (15%) specimens were virus-positive from 10 (42%) subjects. Specimens from children undergoing allogeneic HCT were more likely to have a virus detected (17% vs 8%, P = .04) compared with specimens from children undergoing autologous HCT. Sixteen (38%) detections were not associated with symptoms. Almost half (8/17) of the unique viral infections occurred during the HCT hospitalization after a negative specimen, suggesting nosocomial acquisition, and preceded detection from a clinical specimen. Rhinovirus, the most common virus detected, was the only virus detected in 33 (81%) virus-positive specimens; only 11 (33%) rhinovirus detections were asymptomatic. Asymptomatic detection of coronavirus and bocavirus occurred. Asymptomatic respiratory virus detection occurred in more than one-third of the children undergoing HCT. The acquisition of respiratory viruses during HCT hospitalization suggests nosocomial acquisition. Early detection of respiratory viruses during asymptomatic periods could have infection prevention and treatment implications.
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Affiliation(s)
- Jennifer E Schuster
- Division of Infectious Diseases, Department of Pediatrics, Children's Mercy, Kansas City, MO, USA
| | - Dithi Banerjee
- Department of Pathology and Laboratory Medicine, Children's Mercy, Kansas City, MO, USA
| | - Ibrahim Ahmed
- Division of Hematology/Oncology/Bone Marrow Transplant, Department of Pediatrics, Children's Mercy, Kansas City, MO, USA
| | - Rangaraj Selvarangan
- Department of Pathology and Laboratory Medicine, Children's Mercy, Kansas City, MO, USA
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21
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Jiang W, Withers B, Sutrave G, Clancy LE, Yong MI, Blyth E. Pathogen-Specific T Cells Beyond CMV, EBV and Adenovirus. Curr Hematol Malig Rep 2020; 14:247-260. [PMID: 31228095 DOI: 10.1007/s11899-019-00521-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Infectious diseases contribute significantly to morbidity and mortality in recipients of allogeneic haematopoietic stem cell transplantation (aHSCT), particularly in the era of highly immunosuppressive transplant regimens and alternate donor transplants. Delayed cellular immune recovery is a major mechanism for the increased risk in these patients. Adoptive cell therapy with ex vivo manipulated pathogen-specific T cells (PSTs) is increasingly taking its place as a treatment strategy using donor-derived or third party-banked cells. RECENT FINDINGS The majority of clinical trial data in the form of early-phase studies has been in the prophylaxis or treatment of cytomegalovirus (CMV), Epstein-Barr virus (EBV) and adenovirus (AdV). Advancements in methods to select and enrich PSTs offer the opportunity to target the less common viral pathogens as well as fungi with this technology. Early clinical studies of PSTs targeting polyomaviruses (BK virus and JC virus), human herpesvirus 6 (HHV6), varicella zoster virus (VZV) and Aspergillus spp. have shown promising results in small numbers of patients. Other potential targets include herpes simplex virus (HSV), respiratory viruses and other invasive fungal species. In this review, we describe the burden of disease of this wider spectrum of pathogens, the progress in the development of manufacturing capability, early clinical results and the opportunities and challenges for implementation in the clinic.
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Affiliation(s)
- Wei Jiang
- Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia.,Westmead Institute of Medical Research, University of Sydney, Sydney, Australia
| | - Barbara Withers
- Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia.,Westmead Institute of Medical Research, University of Sydney, Sydney, Australia.,St Vincent's Hospital, Darlinghurst, Australia
| | - Gaurav Sutrave
- Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia.,Westmead Institute of Medical Research, University of Sydney, Sydney, Australia.,BMT and Cell Therapies Program, Westmead Hospital, Sydney, Australia
| | - Leighton E Clancy
- Westmead Institute of Medical Research, University of Sydney, Sydney, Australia.,Sydney Cellular Therapies Laboratory, Westmead, Australia
| | - Michelle I Yong
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria, Australia.,The Peter Doherty Institute for Infection and Immunity, The University of Melbourne and Royal Melbourne Hospital, Melbourne, Australia
| | - Emily Blyth
- Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia. .,Westmead Institute of Medical Research, University of Sydney, Sydney, Australia. .,St Vincent's Hospital, Darlinghurst, Australia. .,BMT and Cell Therapies Program, Westmead Hospital, Sydney, Australia.
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22
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Martinez-Rodriguez C, Banos-Lara MDR. HMPV in Immunocompromised Patients: Frequency and Severity in Pediatric Oncology Patients. Pathogens 2020; 9:pathogens9010051. [PMID: 31936721 PMCID: PMC7168653 DOI: 10.3390/pathogens9010051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/30/2019] [Accepted: 01/07/2020] [Indexed: 12/15/2022] Open
Abstract
Cancer is the first cause of death by disease in childhood globally. The most frequent types of cancers in children and adolescents are leukemias, followed by brain and central nervous system tumors and lymphomas. The recovery rate of cancer in children is around 80% in developed countries and up to 30% in developing countries. Some of the main causes of complications in children and adolescents with cancer are respiratory viral infections, mainly in bone marrow-transplanted patients. Respiratory viruses have been detected in the bronchoalveolar lavage or nasal wash specimens from cancer patients with or without respiratory illness symptoms. Human metapneumovirus (HMPV) is within the ten most common viruses that are encountered in samples from pediatric patients with underlying oncology conditions. In most of cases, HMPV is found as the only viral agent, but co-infection with other viruses or with bacterial agents has also been reported. The discrepancies between the most prevalent viral agents may be due to the different populations studied or the range of viral agents tested. Some of the cases of infection with HMPV in cancer patients have been fatal, especially in those who have received a hematopoietic stem cell transplant. This review seeks to show a general view of the participation of HMPV in respiratory illness as a complication of cancer in childhood and adolescence.
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Affiliation(s)
- Cesar Martinez-Rodriguez
- School of Medicine. Instituto Universitario de Ciencias Médicas y Humanísticas de Nayarit; Tepic 63190, Mexico;
| | - Ma. del Rocio Banos-Lara
- Centro de Investigación Oncológica Una Nueva Esperanza-Universidad Popular Autónoma del Estado de Puebla; Universidad Popular Autónoma del Estado de Puebla, 21 sur #1103, Barrio de Santiago, Puebla 72410, Mexico
- Correspondence:
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23
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Possible role of highly activated mucosal NK cells against viral respiratory infections in children undergoing haematopoietic stem cell transplantation. Sci Rep 2019; 9:18792. [PMID: 31827202 PMCID: PMC6906525 DOI: 10.1038/s41598-019-55398-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 11/13/2019] [Indexed: 12/29/2022] Open
Abstract
Infection is the leading cause of non-relapse-related mortality after allogeneic haematopoietic stem cell transplantation (HSCT). Altered functions of immune cells in nasal secretions may influence post HSCT susceptibility to viral respiratory infections. In this prospective study, we determined T and NK cell numbers together with NK activation status in nasopharyngeal aspirates (NPA) in HSCT recipients and healthy controls using multiparametric flow cytometry. We also determined by polymerase chain reaction (PCR) the presence of 16 respiratory viruses. Samples were collected pre-HSCT, at day 0, +10, +20 and +30 after HSCT. Peripheral blood (PB) was also analyzed to determine T and NK cell numbers. A total of 27 pediatric HSCT recipients were enrolled and 16 of them had at least one viral detection (60%). Rhinovirus was the most frequent pathogen (84% of positive NPAs). NPAs of patients contained fewer T and NK cells compared to healthy controls (p = 0.0132 and p = 0.120, respectively). Viral PCR + patients showed higher NK cell number in their NPAs. The activating receptors repertoire expressed by NK cells was also higher in NPA samples, especially NKp44 and NKp46. Our study supports NK cells relevance for the immune defense against respiratory viruses in HSCT recipients.
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24
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Use of whole-genome sequencing in the molecular investigation of care-associated HCoV-OC43 infections in a hematopoietic stem cell transplant unit. J Clin Virol 2019; 122:104206. [PMID: 31783264 PMCID: PMC7106382 DOI: 10.1016/j.jcv.2019.104206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 10/14/2019] [Accepted: 10/25/2019] [Indexed: 12/13/2022]
Abstract
HCoV−OC43 is involved in healthcare–associated infections. HCoV−OC43 genotypes B, E, F and G are identified. Asian and European strains of HCoV−OC43 circulate among patients.
Background While respiratory viral infections are recognized as a frequent cause of illness in hematopoietic stem cell transplantation (HSCT) recipients, HCoV−OC43 infections have rarely been investigated as healthcare-associated infections in this population. Objectives In this report, HCoV−OC43 isolates collected from HSCT patients were retrospectively characterized to identify potential clusters of infection that may stand for a hospital transmission. Study design Whole-genome and S gene sequences were obtained from nasal swabs using next-generation sequencing and phylogenetic trees were constructed. Similar identity matrix and determination of the most common ancestor were used to compare clusters of patient’s sequences. Amino acids substitutions were analysed. Results Genotypes B, E, F and G were identified. Two clusters of patients were defined from chronological data and phylogenetic trees. Analyses of amino acids substitutions of the S protein sequences identified substitutions specific for genotype F strains circulating among European people. Conclusions HCoV−OC43 may be implicated in healthcare-associated infections.
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25
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Are Community Acquired Respiratory Viral Infections an Underestimated Burden in Hematology Patients? Microorganisms 2019; 7:microorganisms7110521. [PMID: 31684063 PMCID: PMC6920795 DOI: 10.3390/microorganisms7110521] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 12/25/2022] Open
Abstract
Despite a plethora of studies demonstrating significant morbidity and mortality due to community-acquired respiratory viral (CRV) infections in intensively treated hematology patients, and despite the availability of evidence-based guidelines for the diagnosis and management of respiratory viral infections in this setting, there is no uniform inclusion of respiratory viral infection management in the clinical hematology routine. Nevertheless, timely diagnosis and systematic management of CRV infections in intensively treated hematology patients has a demonstrated potential to significantly improve outcome. We have briefly summarized the recently published data on CRV infection epidemiology, as well as guidelines on the diagnosis and management of CRV infections in patients intensively treated for hematological malignancies. We have also assessed available treatment options, as well as mentioned novel agents currently in development.
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26
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Immunogenicity of the inactivated influenza vaccine in children who have undergone allogeneic haematopoietic stem cell transplant. Bone Marrow Transplant 2019; 55:773-779. [PMID: 31659236 PMCID: PMC7223911 DOI: 10.1038/s41409-019-0728-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022]
Abstract
Influenza vaccination is recommended for children following allogeneic haematopoietic stem cell transplant (HSCT), however there is limited evidence regarding its benefit. A prospective multicentre study was conducted to evaluate the immunogenicity of the inactivated influenza vaccine in children who have undergone HSCT compared with healthy age-matched controls. Participants were vaccinated between 2013 and 2016 according to Australian guidelines. Influenza-specific hemagglutinin inhibition antibody titres were performed prior to each vaccination and 4 weeks following the final vaccination. A nasopharyngeal aspirate for influenza was performed on participants that developed influenza-like illness. There were 86 children recruited; 43 who had undergone HSCT and 43 controls. For the HSCT group, seroprotection and seroconversion rates were 81.4% and 60.5% for H3N2, 41.9% and 32.6% for H1N1, and 44.2% and 39.5% for B strain respectively. There was a significant geometric mean fold increase to the H3N2 (GMFI 5.80, 95% CI 3.68–9.14, p < 0.001) and B (GMFI 3.44, 95% CI 2.36–5.00, p = 0.048) strains. Serological response was superior in age-matched controls to all vaccine strains. There were no serious adverse events following vaccination. For children who underwent HSCT, incidence of laboratory-proven influenza infection was 2.3%. Overall, this study provides evidence to support annual inactivated influenza vaccine administration to children following HSCT.
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27
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Ottaviano G, Lucchini G, Breuer J, Furtado-Silva JM, Lazareva A, Ciocarlie O, Elfeky R, Rao K, Amrolia PJ, Veys P, Chiesa R. Delaying haematopoietic stem cell transplantation in children with viral respiratory infections reduces transplant-related mortality. Br J Haematol 2019; 188:560-569. [PMID: 31566733 PMCID: PMC7161889 DOI: 10.1111/bjh.16216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/31/2019] [Indexed: 01/05/2023]
Abstract
Viral respiratory infections (VRIs) contribute to the morbidity and transplant‐related mortality (TRM) after allogeneic haematopoietic stem cell transplantation (HSCT) and strategies to prevent and treat VRIs are warranted. We monitored VRIs before and after transplant in children undergoing allogeneic HSCT with nasopharyngeal aspirates (NPA) and assessed the impact on clinical outcome. Between 2007 and 2017, 585 children underwent 620 allogeneic HSCT procedures. Out of 75 patients with a positive NPA screen (12%), transplant was delayed in 25 cases (33%), while 53 children started conditioning with a VRI. Patients undergoing HSCT with a positive NPA screen had a significantly lower overall survival (54% vs. 79%) and increased TRM (26% vs. 7%) compared to patients with a negative NPA. Patients with a positive NPA who delayed transplant and cleared the virus before conditioning had improved overall survival (90%) and lower TRM (5%). Pre‐HSCT positive NPA was the only significant risk factor for progression to a lower respiratory tract infection and was a major risk factor for TRM. Transplant delay, whenever feasible, in case of a positive NPA screen for VRIs can positively impact on survival of children undergoing HSCT.
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Affiliation(s)
- Giorgio Ottaviano
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,Department of Paediatrics, University of Milano-Bicocca, San Gerardo Hospital/Fondazione MBBM, Monza, Italy
| | - Giovanna Lucchini
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Judith Breuer
- Department of Microbiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,Division of Infection and Immunity, University College London, London, UK
| | - Juliana M Furtado-Silva
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Arina Lazareva
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Oana Ciocarlie
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Reem Elfeky
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Kanchan Rao
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Persis J Amrolia
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Paul Veys
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Robert Chiesa
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
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28
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Lee KH, Yoo SG, Cho Y, Kwon DE, La Y, Han SH, Kim MS, Choi JS, Kim SI, Kim YS, Min YH, Cheong JW, Kim JS, Song YG. Characteristics of community-acquired respiratory viruses infections except seasonal influenza in transplant recipients and non-transplant critically ill patients. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2019; 54:253-260. [PMID: 31262511 PMCID: PMC7102620 DOI: 10.1016/j.jmii.2019.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 04/24/2019] [Accepted: 05/17/2019] [Indexed: 12/14/2022]
Abstract
Background/Purpose Transplant recipients are vulnerable to life-threatening community-acquired respiratory viruses (CA-RVs) infection (CA-RVI). Even if non-transplant critically ill patients in intensive care unit (ICU) have serious CA-RVI, comparison between these groups remains unclear. We aimed to evaluate clinical characteristics and mortality of CA-RVI except seasonal influenza A/B in transplant recipients and non-transplant critically ill patients in ICU. Methods We collected 37,777 CA-RVs multiplex real-time reverse transcription-polymerase chain reaction test results of individuals aged ≥18 years from November 2012 to November 2017. The CA-RVs tests included adenovirus, coronavirus 229E/NL63/OC43, human bocavirus, human metapneumovirus, parainfluenza virus 1/2/3, rhinovirus, and respiratory syncytial virus A/B. Results We found 286 CA-RVI cases, including 85 solid organ transplantation recipients (G1), 61 hematopoietic stem cell transplantation recipients (G2), and 140 non-transplant critically ill patients in ICU (G3), excluding those with repeated isolation within 30 days. Adenovirus positive rate and infection cases were most prominent in G2 (p < 0.001). The median time interval between transplantation and CA-RVI was 30 and 20 months in G1 and G2, respectively. All-cause in-hospital mortality was significantly higher in G3 than in G1 or G2 (51.4% vs. 28.2% or 39.3%, p = 0.002, respectively). The mechanical ventilation (MV) was the independent risk factor associated with all-cause in-hospital mortality in all three groups (hazard ratio, 3.37, 95% confidence interval, 2.04–5.56, p < 0.001). Conclusions This study highlights the importance of CA-RVs diagnosis in transplant recipients even in long-term posttransplant period, and in non-transplant critically ill patients in ICU with MV.
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Affiliation(s)
- Kyoung Hwa Lee
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seul Gi Yoo
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yonggeun Cho
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Da Eun Kwon
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeonju La
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang Hoon Han
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Myoung Soo Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Sub Choi
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soon Il Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Seun Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoo Hong Min
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Seok Kim
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong Goo Song
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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29
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Vasileiou S, Turney AM, Kuvalekar M, Mukhi SS, Watanabe A, Lulla P, Ramos CA, Naik S, Vera JF, Tzannou I, Leen AM. Rapid generation of multivirus-specific T lymphocytes for the prevention and treatment of respiratory viral infections. Haematologica 2019; 105:235-243. [PMID: 31004020 PMCID: PMC6939529 DOI: 10.3324/haematol.2018.206896] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 04/16/2019] [Indexed: 11/29/2022] Open
Affiliation(s)
- Spyridoula Vasileiou
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Anne M Turney
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Manik Kuvalekar
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Shivani S Mukhi
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Ayumi Watanabe
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Premal Lulla
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Carlos A Ramos
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Swati Naik
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Juan F Vera
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Ifigeneia Tzannou
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
| | - Ann M Leen
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA
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30
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Ryan AL, Kerr F, Gough H, Carter TL, Kotecha RS. Vaccine-preventable disease following allogeneic haematopoietic stem cell transplant in Western Australia. J Paediatr Child Health 2019; 55:343-348. [PMID: 30184291 DOI: 10.1111/jpc.14204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/25/2018] [Accepted: 08/02/2018] [Indexed: 12/12/2022]
Abstract
AIM Infection is an important and frequent cause of mortality and morbidity following allogeneic haematopoietic stem cell transplantation (HSCT). This study was conducted to determine the epidemiology and clinical phenotype of vaccine-preventable disease in children who have undergone HSCT following the implementation of a standard revaccination programme. METHODS Children receiving first allogeneic HSCT in Western Australia between January 2005 and December 2014 were eligible for recruitment. Patients received standard antimicrobial prophylaxis and were vaccinated according to the West Australian post-HSCT immunisation schedule, commencing 6 months following HSCT. Children who developed any illness post-HSCT were reviewed, and investigations for infectious disease were undertaken as clinically indicated. Positive identification of vaccine-preventable disease was documented with the clinical course of the illness. RESULTS A total of 71 patients were enrolled in the study. The overall incidence of vaccine-preventable disease following HSCT was 19.7%; influenza accounted for 50% of all cases, herpes zoster for 42.9%. All episodes occurred late, beyond day 100 post-HSCT. Overall survival for matched-sibling donor transplants was 83.3 and 75.0% at 1 and 5 years, respectively, and was 72.3 and 63.3% for alternative donor transplants. Mortality due to vaccine-preventable disease was low, with one death from disseminated herpes zoster. CONCLUSIONS There is a high incidence of vaccine-preventable morbidity post-allogeneic HSCT in West Australian children. Viral aetiology constitutes the main burden, namely, influenza infection and varicella zoster virus reactivation. Further efforts are required to identify the most appropriate preventative strategies.
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Affiliation(s)
- Anne L Ryan
- Department of Haematology and Oncology, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - Fiona Kerr
- Department of Haematology and Oncology, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - Hazel Gough
- Department of Haematology and Oncology, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - Tina L Carter
- Department of Haematology and Oncology, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - Rishi S Kotecha
- Department of Haematology and Oncology, Princess Margaret Hospital for Children, Perth, Western Australia, Australia.,Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia.,Division of Paediatrics, School of Medicine, University of Western Australia, Perth, Western Australia, Australia
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31
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Febrile Neutropenia in Transplant Recipients. PRINCIPLES AND PRACTICE OF TRANSPLANT INFECTIOUS DISEASES 2019. [PMCID: PMC7122322 DOI: 10.1007/978-1-4939-9034-4_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Febrile neutropenic patients are at increased risk of developing infections. During the initial stages of neutropenia, most of these infections are bacterial. The spectrum of bacterial infections depends to some extent on whether or not patients receive antimicrobial prophylaxis when neutropenic. Since most transplant recipients do, Gram-positive organisms predominate, due to the fact prophylaxis is directed primarily against Gram-negative organisms. Staphylococcus species (often methicillin-resistant), Streptococcus species (viridans group streptococci, beta-hemolytic streptococci), and Enterococcus species (including vancomycin-resistant strains) are isolated most often. Therefore, potent empiric Gram-positive coverage is recommended by many in this setting. Escherichia coli, Pseudomonas aeruginosa, and Klebsiella species are the most common Gram-negative pathogens isolated. Non-fermentative Gram-negative bacilli (Stenotrophomonas maltophilia, Acinetobacter species) are emerging as important pathogens. Many of these organisms acquire multiple mechanisms of resistance that render them multidrug resistant. The administration of prompt, broad-spectrum, empiric, antimicrobial therapy is essential and is generally based on local epidemiology and susceptibility/resistance patterns. Response rate to the initial regimen is generally in the range of 75–85%. Fungal infections develop in patients with prolonged neutropenia (greater than 7–10 days). Candida species and Aspergillus species are the predominant fungal pathogens, although many other fungi are opportunistic pathogens in this setting. Fungal infections are seldom documented microbiologically or on histopathology, and the administration of empiric antifungal therapy, when such infections are suspected, is the norm. Therapy is often prolonged, and outcomes are still suboptimal. The importance of infection control and antimicrobial stewardship cannot be overemphasized.
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32
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Harris KM, Davila BJ, Bollard CM, Keller MD. Virus-Specific T Cells: Current and Future Use in Primary Immunodeficiency Disorders. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2018; 7:809-818. [PMID: 30581131 DOI: 10.1016/j.jaip.2018.10.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 10/31/2018] [Accepted: 10/31/2018] [Indexed: 12/28/2022]
Abstract
Viral infections are common and can be potentially fatal in patients with primary immunodeficiency disorders (PIDDs). Because viral susceptibility stems from poor to absent T-cell function in most patients with moderate to severe forms of PIDD, adoptive immunotherapy with virus-specific T cells (VSTs) has been used to combat viral infections in the setting of hematopoietic stem cell transplantation in multiple clinical trials. Most trials to date have targeted cytomegalovirus, EBV, and adenovirus either alone or in combination, although newer trials have expanded the number of targeted pathogens. Use of banked VSTs produced from third-party donors has also been studied as a method of expanding access to this therapy. Here we review the clinical experience with VST therapy for patients with PIDDs as well as future potential targets and approaches for the use of VSTs to improve clinical outcomes for this specific patient population.
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Affiliation(s)
- Katherine M Harris
- Center for Cancer and Immunology Research, Children's National Health System, Washington, DC
| | - Blachy J Davila
- Center for Cancer and Immunology Research, Children's National Health System, Washington, DC; Division of Blood and Marrow Transplantation, Children's National Health System, Washington, DC
| | - Catherine M Bollard
- Center for Cancer and Immunology Research, Children's National Health System, Washington, DC; Division of Blood and Marrow Transplantation, Children's National Health System, Washington, DC
| | - Michael D Keller
- Center for Cancer and Immunology Research, Children's National Health System, Washington, DC; Division of Allergy and Immunology, Children's National Health System, Washington, DC.
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33
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Hijano DR, Maron G, Hayden RT. Respiratory Viral Infections in Patients With Cancer or Undergoing Hematopoietic Cell Transplant. Front Microbiol 2018; 9:3097. [PMID: 30619176 PMCID: PMC6299032 DOI: 10.3389/fmicb.2018.03097] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/29/2018] [Indexed: 12/25/2022] Open
Abstract
Survival rates for pediatric cancer have steadily improved over time but it remains a significant cause of morbidity and mortality among children. Infections are a major complication of cancer and its treatment. Community acquired respiratory viral infections (CRV) in these patients increase morbidity, mortality and can lead to delay in chemotherapy. These are the result of infections with a heterogeneous group of viruses including RNA viruses, such as respiratory syncytial virus (RSV), influenza virus (IV), parainfluenza virus (PIV), metapneumovirus (HMPV), rhinovirus (RhV), and coronavirus (CoV). These infections maintain a similar seasonal pattern to those of immunocompetent patients. Clinical manifestations vary significantly depending on the type of virus and the type and degree of immunosuppression, ranging from asymptomatic or mild disease to rapidly progressive fatal pneumonia Infections in this population are characterized by a high rate of progression from upper to lower respiratory tract infection and prolonged viral shedding. Use of corticosteroids and immunosuppressive therapy are risk factors for severe disease. The clinical course is often difficult to predict, and clinical signs are unreliable. Accurate prognostic viral and immune markers, which have become part of the standard of care for systemic viral infections, are currently lacking; and management of CRV infections remains controversial. Defining effective prophylactic and therapeutic strategies is challenging, especially considering, the spectrum of immunocompromised patients, the variety of respiratory viruses, and the presence of other opportunistic infections and medical problems. Prevention remains one of the most important strategies against these viruses. Early diagnosis, supportive care and antivirals at an early stage, when available and indicated, have proven beneficial. However, with the exception of neuraminidase inhibitors for influenza infection, there are no accepted treatments. In high-risk patients, pre-emptive treatment with antivirals for upper respiratory tract infection (URTI) to decrease progression to LRTI is a common strategy. In the future, viral load and immune markers may prove beneficial in predicting severe disease, supporting decision making and monitor treatment in this population.
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Affiliation(s)
- Diego R. Hijano
- Department of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN, United States
| | - Gabriela Maron
- Department of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN, United States
| | - Randall T. Hayden
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, United States
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Fisher BT, Danziger-Isakov L, Sweet LR, Munoz FM, Maron G, Tuomanen E, Murray A, Englund JA, Dulek D, Halasa N, Green M, Michaels MG, Madan RP, Herold BC, Steinbach WJ. A Multicenter Consortium to Define the Epidemiology and Outcomes of Inpatient Respiratory Viral Infections in Pediatric Hematopoietic Stem Cell Transplant Recipients. J Pediatric Infect Dis Soc 2018; 7:275-282. [PMID: 29106589 PMCID: PMC7107490 DOI: 10.1093/jpids/pix051] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 06/01/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Respiratory virus infections (RVIs) pose a threat to children undergoing hematopoietic stem cell transplantation (HSCT). In this era of sensitive molecular diagnostics, the incidence and outcome of HSCT recipients who are hospitalized with RVI (H-RVI) are not well described. METHODS A retrospective observational cohort of pediatric HSCT recipients (between January 2010 and June 2013) was assembled from 9 US pediatric transplant centers. Their medical charts were reviewed for H-RVI events within 1 year after their transplant. An H-RVI diagnosis required respiratory signs or symptoms plus viral detection (human rhinovirus/enterovirus, human metapneumovirus, influenza, parainfluenza, coronaviruses, and/or respiratory syncytial virus). The incidence of H-RVI was calculated, and the association of baseline HSCT factors with subsequent pulmonary complications and death was assessed. RESULTS Among 1560 HSCT recipients, 259 (16.6%) acquired at least 1 H-RVI within 1 year after their transplant. The median age of the patients with an H-RVI was lower than that of patients without an H-RVI (4.8 vs 7.1 years; P < .001). Among the patients with a first H-RVI, 48% required some respiratory support, and 14% suffered significant pulmonary sequelae. The all-cause and attributable case-fatality rates within 3 months of H-RVI onset were 11% and 5.4%, respectively. Multivariate logistic regression revealed that H-RVI onset within 60 days of HSCT, steroid use in the 7 days before H-RVI onset, and the need for respiratory support at H-RVI onset were associated with subsequent morbidity or death. CONCLUSION Results of this multicenter cohort study suggest that H-RVIs are relatively common in pediatric HSCT recipients and contribute to significant morbidity and death. These data should help inform interventional studies specific to each viral pathogen.
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Affiliation(s)
- Brian T Fisher
- Division of Infectious Diseases, Department of Pediatrics, Children’s Hospital of Philadelphia, Pennsylvania,Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Pennsylvania,Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia,Correspondence: B. T. Fisher, DO, MSCE, Division of Infectious Diseases, Children’s Hospital of Philadelphia, 34th and Civic Center Boulevard, CHOP North, Suite 1515, Philadelphia, PA 19104 ()
| | - Lara Danziger-Isakov
- Division of Infectious Diseases, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Ohio
| | - Leigh R Sweet
- Department of Pediatrics, Section of Infectious Diseases, Texas Children’s Hospital, Baylor College of Medicine, Houston
| | - Flor M Munoz
- Department of Pediatrics, Section of Infectious Diseases, Texas Children’s Hospital, Baylor College of Medicine, Houston
| | - Gabriela Maron
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee
| | - Elaine Tuomanen
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee
| | - Alistair Murray
- Seattle Children’s Research Institute, Seattle Children’s Hospital,University of Washington
| | - Janet A Englund
- Seattle Children’s Research Institute, Seattle Children’s Hospital,University of Washington
| | - Daniel Dulek
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Monroe Carell Jr Children’s Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Natasha Halasa
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Monroe Carell Jr Children’s Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael Green
- Division of Infectious Diseases, Children’s Hospital of Pittsburgh of UPMC, Departments of Pediatrics and Surgery,University of Pittsburgh School of Medicine, Pennsylvania
| | - Marian G Michaels
- Division of Infectious Diseases, Children’s Hospital of Pittsburgh of UPMC, Departments of Pediatrics and Surgery,University of Pittsburgh School of Medicine, Pennsylvania
| | - Rebecca Pellett Madan
- Department of Pediatrics, Albert Einstein College of Medicine and Children’s Hospital at Montefiore, Bronx, New York
| | - Betsy C Herold
- Department of Pediatrics, Albert Einstein College of Medicine and Children’s Hospital at Montefiore, Bronx, New York
| | - William J Steinbach
- Departments of Pediatrics and Molecular Genetics and Microbiology, Duke University, Durham, North Carolina
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Versluys AB, Boelens JJ. Morbidity and Mortality Associated With Respiratory Virus Infections in Allogeneic Hematopoietic Cell Transplant: Too Little Defense or Harmful Immunity? Front Microbiol 2018; 9:2795. [PMID: 30519222 PMCID: PMC6258814 DOI: 10.3389/fmicb.2018.02795] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 10/31/2018] [Indexed: 12/29/2022] Open
Abstract
The impact on morbidity and mortality of Community Acquired Respiratory Virus (CARV) infections in patients undergoing Allogeneic Hematopoietic Cell Transplant (HCT) is widely studied. Here we give an overview of the current literature on the incidence and chance of progression to severe disease in this highly immune compromised population. We discuss the issue whether it is predominantly direct viral damage that causes clinical deterioration, or that it is in fact the allogeneic immuneresponse to the virus that is most important. This is an important question as it will guide therapeutic decision making. It asks for further collaborative studies focusing on sensitive surveillance with PCR techniques and relating clinical data with parameters of immune reconstitution.
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Affiliation(s)
- Anne Birgitta Versluys
- Blood and Marrow Transplantation Program, Princess Maxima Center for Pediatric Oncology, Utrecht, Netherlands
| | - Jaap Jan Boelens
- Stem Cell Transplant and Cellular Therapies Program, Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, United States
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Healthcare-Associated Viral Infections: Considerations for Nosocomial Transmission and Infection Control. HEALTHCARE-ASSOCIATED INFECTIONS IN CHILDREN 2018. [PMCID: PMC7121921 DOI: 10.1007/978-3-319-98122-2_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nosocomial and healthcare-associated viral infections are major contributors to patient morbidity and mortality, prolonged hospitalization, and increased healthcare costs in all pediatric age groups. Healthcare workers are also at risk of acquiring nosocomial viral infections, affecting their own health, as well as facilitating spread of the infection to other patients, their family, and the community. Healthcare-associated viral infections may occur in a variety of healthcare settings, including clinics, emergency centers, urgent care centers, procedure suites, operating rooms, hospital wards, nurseries, and intensive care units. In addition, non-patient care areas, such as the cafeteria, waiting areas, and playrooms may also be a source of viral infections that can spread in the healthcare setting. These infections may be device-related or transmitted via blood products or organ donation and respiratory droplets, through food including human milk, person to person, or via air ducts, fomites, and surfaces. They most commonly involve the respiratory and gastrointestinal tracts; however, all organ systems may potentially be involved. Both DNA and RNA viruses, either common or exotic, may contribute to healthcare-associated viral infections. Advances in molecular viral diagnostics have enabled rapid detection and routine surveillance for viral infections and now allow early identification of viruses. Prompt identification allows timely containment measures to minimize transmission to other patients or healthcare workers and avoids hospital, community, and global outbreaks.
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McLaughlin LP, Bollard CM, Keller MD. Adoptive T Cell Therapy for Epstein-Barr Virus Complications in Patients With Primary Immunodeficiency Disorders. Front Immunol 2018; 9:556. [PMID: 29616044 PMCID: PMC5867312 DOI: 10.3389/fimmu.2018.00556] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/05/2018] [Indexed: 12/28/2022] Open
Abstract
Patients with primary immunodeficiency disorders (PID) have an increased risk from acute and chronic Epstein–Barr Virus (EBV) viral infections and EBV-associated malignancies. Hematopoietic stem cell transplantation (HSCT) is a curative strategy for many patients with PID, but EBV-related complications are common in the immediate post-transplant period due to delayed reconstitution of T cell immunity. Adoptive T cell therapy with EBV-specific T cells is a promising therapeutic strategy for patients with PID both before and after HSCT. Here we review the methods used to manufacture EBV-specific T cells, the clinical outcomes, and the ongoing challenges for future development of the strategy.
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Affiliation(s)
- Lauren P McLaughlin
- Center for Cancer and Immunology Research, Children's National Health System, The George Washington University, Washington, DC, United States.,Division of Oncology, Children's National Health System, Washington, DC, United States
| | - Catherine M Bollard
- Center for Cancer and Immunology Research, Children's National Health System, The George Washington University, Washington, DC, United States.,Division of Allergy and Immunology, Children's National Health System, Washington, DC, United States.,Division of Blood and Marrow Transplantation, Children's National Health System, Washington, DC, United States
| | - Michael D Keller
- Center for Cancer and Immunology Research, Children's National Health System, The George Washington University, Washington, DC, United States.,Division of Allergy and Immunology, Children's National Health System, Washington, DC, United States
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38
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Virus-Specific T Cells for Hematopoietic Stem Cell Transplantation. CURRENT STEM CELL REPORTS 2017. [DOI: 10.1007/s40778-017-0107-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Manzoni P, Figueras-Aloy J, Simões EAF, Checchia PA, Fauroux B, Bont L, Paes B, Carbonell-Estrany X. Defining the Incidence and Associated Morbidity and Mortality of Severe Respiratory Syncytial Virus Infection Among Children with Chronic Diseases. Infect Dis Ther 2017; 6:383-411. [PMID: 28653300 PMCID: PMC5595774 DOI: 10.1007/s40121-017-0160-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION REGAL (RSV Evidence-a Geographical Archive of the Literature) has provided a comprehensive review of the published evidence in the field of respiratory syncytial virus (RSV) in Western countries over the last 20 years. This review covers the risk and burden of RSV infection in children with underlying medical conditions or chronic diseases (excluding prematurity and congenital heart disease). METHODS A systematic review of publications between January 1, 1995 and December 31, 2015 across PubMed, Embase, The Cochrane Library, and Clinicaltrials.gov was supplemented by papers identified by the authors through March 2017. Studies reporting data for hospital visits/admissions for RSV infection as well as studies reporting RSV-associated morbidity and mortality were included. Study quality and strength of evidence (SOE) were graded. RESULTS A total of 2703 studies were identified and 58 were included. Down syndrome, irrespective of prematurity and congenital heart disease (moderate SOE), immunocompromised children (low SOE), cystic fibrosis (low SOE), and neurologic conditions (low SOE) were associated with a significantly increased risk of RSV hospitalization. A number of other congenital malformations and chronic conditions were also associated with severe RSV disease (low SOE). In general, pre-existing disease was also a predisposing factor for RSV-related mortality (low SOE). CONCLUSION Severe RSV infection in infants and young children with underlying medical conditions or chronic diseases poses a significant health burden. Further studies are needed to fully quantify the epidemiology, burden and outcomes in these populations, in particular RSV-attributable mortality.
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Affiliation(s)
- Paolo Manzoni
- Neonatology and NICU, Sant'Anna Hospital, Turin, Italy
- ReSViNET (Respiratory Syncytial Virus Network), Málaga, Spain
| | - Josep Figueras-Aloy
- Hospital Clínic, Catedràtic de Pediatria, Universitat de Barcelona, Barcelona, Spain
| | - Eric A F Simões
- Center for Global Health, University of Colorado School of Medicine, Colorado School of Public Health, Aurora, CO, USA
| | - Paul A Checchia
- Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Brigitte Fauroux
- Necker University Hospital and Paris 5 University, Paris, France
| | - Louis Bont
- ReSViNET (Respiratory Syncytial Virus Network), Málaga, Spain
- University Medical Center Utrecht, Utrecht, The Netherlands
| | - Bosco Paes
- Department of Paediatrics (Neonatal Division), McMaster University, Hamilton, Canada
| | - Xavier Carbonell-Estrany
- Hospital Clinic, Institut d'Investigacions Biomediques August Pi Suñer (IDIBAPS), Barcelona, Spain.
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Adoptive T Cell Immunotherapy for Patients with Primary Immunodeficiency Disorders. Curr Allergy Asthma Rep 2017; 17:3. [PMID: 28116637 DOI: 10.1007/s11882-017-0669-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Primary immunodeficiency disorders (PID) are a group of inborn errors of immunity with a broad range of clinical severity but often associated with recurrent and serious infections. While hematopoietic stem cell transplantation (HSCT) can be curative for some forms of PID, chronic and/or refractory viral infections remain a cause of morbidity and mortality both before and after HSCT. Although antiviral pharmacologic agents exist for many viral pathogens, these are associated with significant costs and toxicities and may not be effective for increasingly drug-resistant pathogens. Thus, the emergence of adoptive immunotherapy with virus-specific T lymphocytes (VSTs) is an attractive option for addressing the underlying impaired T cell immunity in many PID patients. VSTs have been utilized for PID patients following HSCT in many prior phase I trials, and may potentially be beneficial before HSCT in patients with chronic viral infections. We review the various methods of generating VSTs, clinical experience using VSTs for PID patients, and current limitations as well as potential ways to broaden the clinical applicability of adoptive immunotherapy for PID patients.
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Versluys B, Bierings M, Murk JL, Wolfs T, Lindemans C, Vd Ent K, Boelens JJ. Infection with a respiratory virus before hematopoietic cell transplantation is associated with alloimmune-mediated lung syndromes. J Allergy Clin Immunol 2017; 141:697-703.e8. [PMID: 28716387 PMCID: PMC7125836 DOI: 10.1016/j.jaci.2017.03.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 03/11/2017] [Accepted: 03/29/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Alloimmune-mediated lung syndromes (allo-LSs) are life-threatening complications after hematopoietic cell transplantation (HCT). Respiratory virus (RV) has been suggested to play a role in the pathogenesis. OBJECTIVE We studied the relation between RV DNA/RNA detection in the upper/lower airways before HCT and the occurrence of allo-LSs. METHODS We retrospectively analyzed all HCT recipients between 2004 and 2014, in whom real-time PCR for RV was performed in nasopharyngeal aspirates (NPAs) and bronchoalveolar lavage (BAL) fluid before HCT. The main outcome of interest was the presence of an allo-LS, which was defined as idiopathic pneumonia syndrome or bronchiolitis obliterans syndrome. Other outcomes were overall survival and treatment-related mortality. We used Cox proportional hazard models, logistic regression models, and Fine-Gray competing risk regression for analyses. RESULTS One hundred seventy-nine children (median age, 6.8 years) were included. RVs were found in 61% (41% in BAL fluid/NPAs and 20% in NPAs only). Rhinovirus was the most frequently detected RV (42%). Allo-LSs occurred in 13%. RV positivity in BAL fluid was a predictor for allo-LSs (hazard ratio, 3.8; 95% CI, 1.4-10.7; P = .01), whereas RV positivity in NPAs only was not. No other predictors were found. Grade II to IV acute graft-versus-host disease related to steroid treatment shows a trend toward a protective effect (odds ratio, 0.16; 95% CI, 0.0-1.3; P = .08). Allo-LSs significantly increased treatment-related mortality (52% ± 10% in allo-LSs and 20% ± 4% in non-allo-LSs, P = .007). CONCLUSIONS These results show that pre-HCT BAL fluid RV positivity was a predictor for allo-LSs. Screening for RVs before HCT might identify patients at risk for allo-LSs. This could have implications for prevention and treatment and might subsequently influence the outcomes of HCT.
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Affiliation(s)
- Birgitta Versluys
- Blood and Marrow Transplantation Program, Department of Pediatrics, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Marc Bierings
- Blood and Marrow Transplantation Program, Department of Pediatrics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jean Luc Murk
- Department of Virology and Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tom Wolfs
- Department of Pediatric Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Caroline Lindemans
- Blood and Marrow Transplantation Program, Department of Pediatrics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kors Vd Ent
- Department of Pediatric Pulmonology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jaap Jan Boelens
- Blood and Marrow Transplantation Program, Department of Pediatrics, University Medical Center Utrecht, Utrecht, The Netherlands; U-DANCE Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
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Abstract
Acute upper and lower respiratory infections are a major public health problem and a leading cause of morbidity and mortality worldwide. At greatest risk are young children, the elderly, the chronically ill, and those with suppressed or compromised immune systems. Viruses are the predominant cause of respiratory tract illnesses and include RNA viruses such as respiratory syncytial virus, influenza virus, parainfluenza virus, metapneumovirus, rhinovirus, and coronavirus. Laboratory testing is required for a reliable diagnosis of viral respiratory infections, as a clinical diagnosis can be difficult since signs and symptoms are often overlapping and not specific for any one virus. Recent advances in technology have resulted in the development of newer diagnostic assays that offer great promise for rapid and accurate detection of respiratory viral infections. This chapter emphasizes the fundamental characteristics and clinical importance of the various RNA viruses that cause upper and lower respiratory tract diseases in the immunocompromised host. It highlights the laboratory methods that can be used to make a rapid and definitive diagnosis for the greatest impact on the care and management of ill patients, and the prevention and control of hospital-acquired infections and community outbreaks.
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Analysis of allogeneic hematopoietic stem cell transplantation with high-dose cyclophosphamide-induced immune tolerance for severe aplastic anemia. Int J Hematol 2016; 104:720-728. [PMID: 27709450 DOI: 10.1007/s12185-016-2106-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 09/27/2016] [Accepted: 09/27/2016] [Indexed: 01/26/2023]
Abstract
The study was aimed to explore the efficacy and safety of allo-HSCT with high-dose cyclophosphamide-induced immune tolerance for SAA. In the present study, 20 cases (12 male, 8 female; average age = 17.8 years) received reduced-intensity conditioning allo-HSCT from August 2012 to August 2014 in the Beijing Military Region General Hospital. All were HLA mismatched and received CSA; 11 received ATG-intensive immune therapy. Donors underwent mobilization with cell colony-stimulating factor. The modified preconditioning regimen included reduced-strength fludarabine combined with Busulfex and cytarabine, cyclophosphamide. Cyclophosphamide (50 mg/kg/d) induced immune tolerance 3 days after transplantation and was combined with immunosuppressive agents, including CSA, MTX, and FK506, for GVHD prophylaxis and the management of observed toxicity, GVHD and DFS. Hematopoietic reconstitution was achieved in 17 cases and engraftment after a second transplantation in an additional three cases. The average times to engraftment were 17.4 and 21.3 days, respectively, with neutrophils ≥0.5 × 109/L and platelets ≥20 × 109/L. Engraftment was confirmed by the evidence of 100 % donor hematopoiesis; T lymphocyte subset counts also increased significantly after transplantation. During follow-up monitoring to April 2015 (median duration = 17.7 months), three patients died of complications, while the other 17 showed disease-free survival (DFS rate = 85 %; longest DFS period = 32 months). Reduced-intensity allo-HSCT with high-dose cyclophosphamide-induced immune tolerance treatment is effective for SAA and can be the key technology extensively used in clinic, but its efficacy needs to be confirmed further with prospective randomized study with increased sample size.
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Human parainfluenza virus-3 can be targeted by rapidly ex vivo expanded T lymphocytes. Cytotherapy 2016; 18:1515-1524. [PMID: 27692559 DOI: 10.1016/j.jcyt.2016.08.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/05/2016] [Accepted: 08/30/2016] [Indexed: 11/21/2022]
Abstract
BACKGROUND AIMS Human parainfluenza virus-3 (HPIV) is a common cause of respiratory infection in immunocompromised patients and currently has no effective therapies. Virus-specific T-cell therapy has been successful for the treatment or prevention of viral infections in immunocompromised patients but requires determination of T-cell antigens on targeted viruses. METHODS HPIV3-specific T cells were expanded from peripheral blood of healthy donors using a rapid generation protocol targeting four HPIV3 proteins. Immunophenotyping was performed by flow cytometry. Viral specificity was determined by interferon (IFN)-γ ELISpot, intracellular cytokine staining and cytokine measurements from culture supernatants by Luminex assay. Cytotoxic activity was tested by 51Cr release and CD107a mobilization assays. Virus-specific T cells targeting six viruses were then produced by rapid protocol, and the phenotype of HPIV3-specific T cells was determined by immunomagnetic sorting for IFN-γ-producing cells. RESULTS HPIV3-specific T cells were expanded from 13 healthy donors. HPIV3-specific T cells showed a CD4+ predominance (mean CD4:CD8 ratio 2.89) and demonstrated specificity for multiple HPIV3 antigens. The expanded T cells were polyfunctional based on cytokine production but only had a minor cytotoxic component. T cells targeting six viruses in a single product similarly showed HPIV3 specificity, with a predominant effector memory phenotype (CD3+/CD45RA-/CCR7-) in responder cells. DISCUSSION HPIV3-specific T cells can be produced using a rapid ex vivo protocol from healthy donors and are predominantly CD4+ T cells with Th1 activity. HPIV3 epitopes can also be successfully targeted alongside multiple other viral epitopes in production of six-virus T cells, without loss of HPIV3 specificity. These products may be clinically beneficial to combat HPIV3 infections by adoptive T-cell therapy in immune-compromised patients.
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Dropulic LK, Lederman HM. Overview of Infections in the Immunocompromised Host. Microbiol Spectr 2016; 4:10.1128/microbiolspec.DMIH2-0026-2016. [PMID: 27726779 PMCID: PMC8428766 DOI: 10.1128/microbiolspec.dmih2-0026-2016] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 12/12/2022] Open
Abstract
Understanding the components of the immune system that contribute to host defense against infection is key to recognizing infections that are more likely to occur in an immunocompromised patient. In this review, we discuss the integrated system of physical barriers and of innate and adaptive immunity that contributes to host defense. Specific defects in the components of this system that predispose to particular infections are presented. This is followed by a review of primary immunodeficiency diseases and secondary immunodeficiencies, the latter of which develop because of a specific illness or condition or are treatment-related. The effects of treatment for neoplasia, autoimmune diseases, solid organ and stem cell transplants on host defenses are reviewed and associated with susceptibility to particular infections. In conclusion, an approach to laboratory screening for a suspected immunodeficiency is presented. Knowledge of which host defects predispose to specific infections allows clinicians to prevent, diagnose, and manage infections in their immunocompromised patients most effectively.
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Affiliation(s)
- Lesia K Dropulic
- The National Institutes of Health, National Institute of Allergy and Infectious Diseases, Division of Intramural Research, Bethesda, MD 20892
| | - Howard M Lederman
- Departments of Pediatrics, Medicine, and Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287
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