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Asimakopoulos JV, Lalou E, Seferlis G, Malliarou M, Konstantinou E, Drandakis I, Vasilopoulos I, Georgopoulou AN, Kopsaftopoulou A, Machairas A, Piperidou A, Karapaschalidis A, Lefaki ME, Galopoulos D, Arapaki MP, Petsa P, Benekou E, Siakantaris MP, Papavassiliou AG, Tsaftaridis P, Panayiotidis P, Vassilakopoulos TP, Papapanagiotou A, Angelopoulou MK. Monitoring Humoral Response Following BNT162b2 mRNA Vaccination against SARS-CoV-2 in Hematopoietic Stem-Cell Transplantation Patients: A Single-Center Prospective Study along with a Brief Review of Current Literature. Hematol Rep 2024; 16:220-233. [PMID: 38651451 PMCID: PMC11036264 DOI: 10.3390/hematolrep16020022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/25/2024] Open
Abstract
Data on antibody response (AR) after vaccination against SARS-CoV2 in hematopoietic stem-cell transplantation setting (HSCT) were initially scarce, mainly due to the exclusion of such patients from approval studies. Shortly after the worldwide application of vaccination against SARS-CoV-2 in vulnerable populations such as patients with hematologic malignancies, limited single-center trials, including HSCT patients, were published. However, there was a great heterogeneity between them regarding the type of underlying malignancy, co-current treatment, type of vaccine, method of AR measurement, and time point of AR measurement. Herein, we present the results of a prospective study on AR after vaccination for SARS-CoV-2 using the BNT162b2 vaccine in a cohort of 54 HSCT recipients-mostly autologous from a single Unit-along with a broad review of the current literature. In our cohort, the AR positivity rate at 1 month was 80.8% and remained positive in 85.7% of patients at 3 months after vaccination. There were only nine non-responders, who were more heavily pretreated and more frequently hypogammaglobulinemic compared to responders. High antibody titers (AT), [AT ≥ 1000 U/mL], were detected in 38.5% and 30.6% of the patients at m1 and m3, respectively. A significant decline in AT between m1 and m3 was demonstrated-p < 0.0001; median AT1 and AT3 were 480.5 and 293 U/mL, respectively. A novel finding of our study was the negative impact of IgA hypogammaglobulinemia on response to vaccination. Other negative significant factors were treatment with anti-CD20 antibody at vaccination and vaccination within 18 months from HSCT. Our data indicate that HSCT recipients elicit a positive response to the BNT162b2 vaccine against SARS-CoV-2 when vaccinated at 6 months post-transplant, and vaccination should be offered to this patient population even within the post-pandemic COVID-19 era.
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Affiliation(s)
- John V. Asimakopoulos
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Eleni Lalou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - George Seferlis
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Maria Malliarou
- Department of Biological Chemistry, National and Kapodistrian University of Athens, Biochemistry Laboratory, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (M.M.); (A.G.P.); (A.P.)
| | - Eliana Konstantinou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Ioannis Drandakis
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Ioannis Vasilopoulos
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Angeliki N. Georgopoulou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Anastasia Kopsaftopoulou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Alexandros Machairas
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Alexia Piperidou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Anestis Karapaschalidis
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Maria-Ekaterini Lefaki
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Dimitrios Galopoulos
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Maria-Panagiota Arapaki
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Panagiota Petsa
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Ekaterini Benekou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Marina P. Siakantaris
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Athanasios G. Papavassiliou
- Department of Biological Chemistry, National and Kapodistrian University of Athens, Biochemistry Laboratory, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (M.M.); (A.G.P.); (A.P.)
| | - Panagiotis Tsaftaridis
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Panayiotis Panayiotidis
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Theodoros P. Vassilakopoulos
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
| | - Angeliki Papapanagiotou
- Department of Biological Chemistry, National and Kapodistrian University of Athens, Biochemistry Laboratory, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (M.M.); (A.G.P.); (A.P.)
| | - Maria K. Angelopoulou
- Department of Hematology and Bone Marrow Transplantation, National and Kapodistrian University of Athens, Laikon General Hospital, Aghiou Thoma 17 str, 11527 Athens, Attica, Greece; (E.L.); (G.S.); (E.K.); (I.D.); (I.V.); (A.N.G.); (A.K.); (A.M.); (A.P.); (A.K.); (M.-E.L.); (M.-P.A.); (P.P.); (E.B.); (M.P.S.); (P.T.); (P.P.); (T.P.V.)
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Thole LML, Tóth L, Proß V, Siegle J, Stahl C, Hermsdorf G, Knabe A, Winkler A, Schrezenmeier E, Ludwig C, Eckert C, Eggert A, Schrezenmeier H, Sattler A, Schulte JH, Kotsch K. Impact of a booster dose on SARS-CoV2 mRNA vaccine-specific humoral-, B- and T cell immunity in pediatric stem cell transplant recipients. Front Immunol 2023; 14:1239519. [PMID: 37942315 PMCID: PMC10628529 DOI: 10.3389/fimmu.2023.1239519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/09/2023] [Indexed: 11/10/2023] Open
Abstract
Stem cell transplant recipients (SCTR) are imperiled to increased risks after SARS-CoV2 infection, supporting the need for effective vaccination strategies for this vulnerable group. With respect to pediatric patients, data on immunogenicity of SARS-CoV2 mRNA-based vaccination is limited. We therefore comprehensively examined specific humoral, B- and T cell responses in a cohort of 2-19 year old SCTR after the second and third vaccine dose. Only after booster vaccination, transplant recipients reached similar levels of vaccine-specific IgG, IgA and neutralizing antibodies against omicron variant as age-matched controls. Although frequencies of SARS-CoV2 specific B cells increased after the third dose, they were still fourfold reduced in patients compared to controls. Overall, the majority of individuals enrolled mounted SARS-CoV2 Spike protein-specific CD4+ T helper cell responses with patients showing significantly higher portions than controls after the third dose. With respect to functionality, however, SCTR were characterized by reduced frequencies of specific interferon gamma producing CD4+ T cells, along with an increase in IL-2 producers. In summary, our data identify distinct quantitative and qualitative impairments within the SARS-CoV2 vaccination specific B- and CD4+ T cell compartments. More importantly, humoral analyses highlight the need for a booster vaccination of SCTR particularly for development of neutralizing antibodies.
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Affiliation(s)
- Linda Marie Laura Thole
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Laura Tóth
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Vanessa Proß
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Janine Siegle
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Carolin Stahl
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Georg Hermsdorf
- Department of Pediatric Oncology and Hematology, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Annette Knabe
- Department of Pediatric Oncology and Hematology, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Annika Winkler
- Department of Pediatric Oncology and Hematology, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Eva Schrezenmeier
- Department of Nephrology and Medical Intensive Care, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin Institute of Health (BIH) Academy, Clinician Scientist Program Universitätsmedizin Berlin, Berlin, Germany
| | - Carolin Ludwig
- Institute of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Cornelia Eckert
- Department of Pediatric Oncology and Hematology, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Angelika Eggert
- Department of Pediatric Oncology and Hematology, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Hubert Schrezenmeier
- Institute of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Arne Sattler
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Johannes H. Schulte
- Department of Pediatric Hematology and Oncology, University Children’s Hospital, Eberhard Karls University Tuebingen, Tuebingen, Germany
| | - Katja Kotsch
- Department of General and Visceral Surgery, Charite-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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Meejun T, Srisurapanont K, Manothummetha K, Thongkam A, Mejun N, Chuleerarux N, Sanguankeo A, Phongkhun K, Leksuwankun S, Thanakitcharu J, Lerttiendamrong B, Langsiri N, Torvorapanit P, Worasilchai N, Plongla R, Hirankarn N, Nematollahi S, Permpalung N, Moonla C, Kates OS. Attenuated immunogenicity of SARS-CoV-2 vaccines and risk factors in stem cell transplant recipients: a meta-analysis. Blood Adv 2023; 7:5624-5636. [PMID: 37389818 PMCID: PMC10514108 DOI: 10.1182/bloodadvances.2023010349] [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: 04/03/2023] [Revised: 06/05/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023] Open
Abstract
Immunogenicity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination is diminished in hematopoietic stem cell transplant (HSCT) recipients. To summarize current evidence and identify risk factors for attenuated responses, 5 electronic databases were searched since database inceptions through 12 January 2023 for studies reporting humoral and/or cellular immunogenicity of SARS-CoV-2 vaccination in the HSCT population. Using descriptive statistics and random-effects models, extracted numbers of responders and pooled odds ratios (pORs) with 95% confidence intervals (CIs) for risk factors of negative immune responses were analyzed (PROSPERO: CRD42021277109). From 61 studies with 5906 HSCT recipients, after 1, 2, and 3 doses of messenger RNA (mRNA) SARS-CoV-2 vaccines, the mean antispike antibody seropositivity rates (95% CI) were 38% (19-62), 81% (77-84), and 80% (75-84); neutralizing antibody seropositivity rates were 52% (40-64), 71% (54-83), and 78% (61-89); and cellular immune response rates were 52% (39-64), 66% (51-79), and 72% (52-86). After 2 vaccine doses, risk factors (pOR; 95% CI) associated with antispike seronegativity were male recipients (0.63; 0.49-0.83), recent rituximab exposure (0.09; 0.03-0.21), haploidentical allografts (0.46; 0.22-0.95), <24 months from HSCT (0.25; 0.07-0.89), lymphopenia (0.18; 0.13-0.24), hypogammaglobulinemia (0.23; 0.10-0.55), concomitant chemotherapy (0.48; 0.29-0.78) and immunosuppression (0.18; 0.13-0.25). Complete remission of underlying hematologic malignancy (2.55; 1.05-6.17) and myeloablative conditioning (1.72; 1.30-2.28) compared with reduced-intensity conditioning were associated with antispike seropositivity. Ongoing immunosuppression (0.31; 0.10-0.99) was associated with poor cellular immunogenicity. In conclusion, attenuated humoral and cellular immune responses to mRNA SARS-CoV-2 vaccination are associated with several risk factors among HSCT recipients. Optimizing individualized vaccination and developing alternative COVID-19 prevention strategies are warranted.
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Affiliation(s)
- Tanaporn Meejun
- Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Kasama Manothummetha
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Achitpol Thongkam
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nuthchaya Mejun
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nipat Chuleerarux
- Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL
| | - Anawin Sanguankeo
- Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kasidis Phongkhun
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Surachai Leksuwankun
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | | | | | - Nattapong Langsiri
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Pattama Torvorapanit
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | | | - Rongpong Plongla
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Nattiya Hirankarn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Saman Nematollahi
- Department of Medicine, University of Arizona College of Medicine, Tucson, AZ
| | - Nitipong Permpalung
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chatphatai Moonla
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Center of Excellence in Translational Hematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Olivia S. Kates
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
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