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Harboe ZB, Modin D, Gustafsson F, Perch M, Gislason G, Sørensen SS, Rasmussen A, Biering‐Sørensen T, Nielsen SD. Effect of influenza vaccination in solid organ transplant recipients: A nationwide population-based cohort study. Am J Transplant 2022; 22:2409-2417. [PMID: 35384275 PMCID: PMC9790571 DOI: 10.1111/ajt.17055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/25/2023]
Abstract
Vaccination can prevent influenza in solid organ transplant (SOT) recipients. Using a modified season-specific approach over nine consecutive influenza seasons, we investigated influenza vaccination coverage and effectiveness in a population-based nationwide cohort study that included all SOT recipients aged ≥18 years who were living in Denmark from December 1, 2007 to April 1, 2016. The primary outcome was the season-specific risk of all-cause pneumonia admission. Secondary outcomes were season-specific influenza-related admission, intensive care unit (ICU) admission, and all-cause mortality. Crude and adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs) were estimated using Cox proportional hazards regression models. In total, 11 381 person-years of follow-up data were collected from 5745 SOT recipients, 48% of whom were vaccinated. Influenza vaccination was associated with a reduced risk of all-cause pneumonia admission (aHR, 0.83; 95% CI, 0.69-0.99; p = .035) and all-cause mortality (aHR, 0.60; 95% CI, 0.47-0.76; p = .001), but not influenza-related admission (aHR, 0.75; 95% CI, 0.46-1.22; p = .24) or ICU admission (aHR, 0.84; 95% CI, 0.67-1.06; p = .14) during the same season. Despite these benefits, uptake of influenza vaccination among SOT recipients was low. Therefore, annual influenza vaccination needs to be prioritized.
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Affiliation(s)
- Zitta Barrella Harboe
- Department of Infectious DiseasesVaccination Clinic for ImmunocompromisedUniversity Hospital of CopenhagenCopenhagenDenmark,Department of Pulmonary and Infectious DiseasesUniversity Hospital of CopenhagenCopenhagenDenmark,Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark
| | - Daniel Modin
- Department of CardiologyUniversity of CopenhagenHerlev & Gentofte HospitalCopenhagenDenmark
| | - Finn Gustafsson
- Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark,Department of Cardiology, Heart and Lung Transplant UnitUniversity Hospital of CopenhagenCopenhagenDenmark
| | - Michael Perch
- Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark,Department of Cardiology, Heart and Lung Transplant UnitUniversity Hospital of CopenhagenCopenhagenDenmark
| | - Gunnar Gislason
- Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark,Department of CardiologyUniversity of CopenhagenHerlev & Gentofte HospitalCopenhagenDenmark
| | - Søren Schwartz Sørensen
- Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark,Department of NephrologyKidney Transplant UnitUniversity Hospital of CopenhagenCopenhagenDenmark
| | - Allan Rasmussen
- Department of Surgical GastroenterologyLiver Transplant UnitUniversity Hospital of CopenhagenCopenhagenDenmark
| | - Tor Biering‐Sørensen
- Department of CardiologyUniversity of CopenhagenHerlev & Gentofte HospitalCopenhagenDenmark,Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Susanne Dam Nielsen
- Department of Infectious DiseasesVaccination Clinic for ImmunocompromisedUniversity Hospital of CopenhagenCopenhagenDenmark,Department of Clinical MedicineFaculty of Health and Medical ScienceUniversity of CopenhagenCopenhagenDenmark
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2
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Giannella M, Pierrotti LC, Helanterä I, Manuel O. SARS-CoV-2 vaccination in solid-organ transplant recipients: What the clinician needs to know. Transpl Int 2021; 34:1776-1788. [PMID: 34450686 PMCID: PMC8646251 DOI: 10.1111/tri.14029] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/30/2021] [Accepted: 08/20/2021] [Indexed: 12/21/2022]
Abstract
In response to the COVID-19 pandemic, SARS-CoV-2 vaccines have been developed at an unparalleled speed, with 14 SARS-CoV-2 vaccines currently authorized. Solid-organ transplant (SOT) recipients are at risk for developing a higher rate of COVID-19-related complications and therefore they are at priority for immunization against SARS-CoV-2. Preliminary data suggest that although SARS-CoV-2 vaccines are safe in SOT recipients (with similar rate of adverse events than in the general population), the antibody responses are decreased in this population. Risk factors for poor vaccine immunogenicity include older age, shorter time from transplantation, use of mycophenolate and belatacept, and worse allograft function. SOT recipients should continue to be advised to maintain hand hygiene, use of facemasks, and social distancing after SARS-CoV-2 vaccine. Vaccination of household contacts should be also prioritized. Although highly encouraged for research purposes, systematic assessment in clinical practice of humoral and cellular immune responses after SARS-CoV-2 vaccination is controversial, since correlation between immunological findings and clinical protection from severe COVID-19, and cutoffs for protection are currently unknown in SOT recipients. Alternative immunization schemes, including a booster dose, higher doses, and modulation of immunosuppression during vaccination, need to be assessed in the context of well-designed clinical trials.
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Affiliation(s)
- Maddalena Giannella
- Infectious Diseases UnitDepartment of Medical and Surgical SciencesIRCCS Azienda Ospedaliero‐Universitaria di Bologna, Policlinico di Sant’OrsolaAlma Mater Studiorum University of BolognaBolognaItaly
| | - Lígia C. Pierrotti
- Department of Infectious DiseasesUniversity of São Paulo School of Medicine Hospital das ClínicasSão PauloBrazil
| | - Ilkka Helanterä
- Transplantation and Liver SurgeryHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Oriol Manuel
- Infectious Diseases Service and Transplantation CenterLausanne University HospitalLausanneSwitzerland
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3
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Spadaccini M, Canziani L, Aghemo A, Lleo A, Maselli R, Anderloni A, Carrara S, Fugazza A, Pellegatta G, Galtieri PA, Hassan C, Greenwald D, Pochapin M, Wallace M, Sharma P, Roesch T, Bhandari P, Emura F, Raju GS, Repici A. What gastroenterologists should know about SARS-CoV 2 vaccine: World Endoscopy Organization perspective. United European Gastroenterol J 2021; 9:787-796. [PMID: 34102015 PMCID: PMC8242672 DOI: 10.1002/ueg2.12103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/01/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The novel Coronavirus (SARS-CoV-2) has caused almost 2 million deaths worldwide. Both Food and Drug Administration and European Medicines Agency have recently approved the first COVID-19 vaccines, and a few more are going to be approved soon. METHODS Several different approaches have been used to stimulate the immune system in mounting a humoral response. As more traditional approaches are under investigation (inactivated virus vaccines, protein subunit vaccines, recombinant virus vaccines), more recent and innovative strategies have been tried (non-replicating viral vector vaccines, RNA based vaccines, DNA based vaccines). RESULTS Since vaccinations campaigns started in December 2020 in both the US and Europe, gastroenterologists will be one of the main sources of information regarding SARS-CoV 2 vaccination for patients in their practice, including vulnerable patients such as those with Inflammatory Bowel Disease (IBD), patients with chronic liver disease, and GI cancer patients. CONCLUSIONS Thus, we must ourselves be well educated and updated in order to provide unambiguous counseling to these categories of vulnerable patients. In this commentary, we aim to provide a comprehensive review of both approved COVID-19 vaccines and the ones still under development, and explore potential risks, benefits and prioritization of vaccination.
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Affiliation(s)
- Marco Spadaccini
- Department of Biomedical SciencesHumanitas UniversityRozzanoItaly
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Lorenzo Canziani
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
- Department of Internal MedicineHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Alessio Aghemo
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
- Department of GastroenterologyDivision of Internal Medicine and HepatologyHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Ana Lleo
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
- Department of GastroenterologyDivision of Internal Medicine and HepatologyHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Roberta Maselli
- Department of Biomedical SciencesHumanitas UniversityRozzanoItaly
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Andrea Anderloni
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Silvia Carrara
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Alessandro Fugazza
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Gaia Pellegatta
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Piera Alessia Galtieri
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
| | - Cesare Hassan
- Digestive Endoscopy UnitNuovo Regina MargheritaRomeItaly
| | - David Greenwald
- Division of GastroenterologyIcahn School of Medicine at Mount SinaiMount Sinai HospitalNew YorkNew YorkUSA
| | - Mark Pochapin
- Division of Gastroenterology and HepatologyNYU Langone HealthNew YorkNew YorkUSA
| | - Michael Wallace
- Division of Gastroenterology and HepatologyMayo ClinicJacksonvilleFloridaUSA
| | - Prateek Sharma
- Digestive Endoscopy UnitKansas City VA Medical CenterKansas CityMissouriUSA
| | - Thomas Roesch
- Division of Gastroenterology & HepatologyUniversity Medical Center Hamburg ‐ EppendorfHamburgGermany
| | - Pradeep Bhandari
- Division of Gastroenterology and HepatologyQueen Alexandra HospitalPortsmouthUK
| | - Fabian Emura
- Division of GastroenterologyUniversidad de La SabanaChíaColombia
| | - Gottumukkala S Raju
- Department of Gastroenterology, Hepatology, and NutritionThe University of TexasMD Anderson Cancer CenterHoustonTexasUSA
| | - Alessandro Repici
- Department of Biomedical SciencesHumanitas UniversityRozzanoItaly
- Department of GastroenterologyEndoscopy UnitHumanitas Clinical and Research Center IRCCSRozzanoItaly
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4
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Helanterä I, Gissler M, Rimhanen-Finne R, Ikonen N, Kanerva M, Lempinen M, Finne P. Epidemiology of laboratory-confirmed influenza among kidney transplant recipients compared to the general population-A nationwide cohort study. Am J Transplant 2021; 21:1848-1856. [PMID: 33252189 DOI: 10.1111/ajt.16421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/19/2020] [Accepted: 11/19/2020] [Indexed: 01/25/2023]
Abstract
Seasonal influenza causes morbidity and mortality after organ transplantation. We quantified the detection of laboratory-confirmed influenza among kidney transplant recipients compared to the general population in a nationwide cohort. All laboratory-confirmed cases of influenza and hospitalizations due to influenza among all kidney transplant recipients in our country between 1995 and 2017 were captured with database linkage from statutory national registries. Data from the general population of Finland, population 5.5 million, were used for comparisons. Annual incidences of influenza and hospitalizations due to influenza, and standardized incidence ratios (SIR) were calculated. Altogether 3904 kidney transplant recipients with a total follow-up of 37 175 patient-years were included. Incidence of laboratory-confirmed influenza was 9.0 per 1000 patient years in 2003-2019, and 18.0 per 1000 patient years during 2015-2019. The risk of laboratory-confirmed influenza was significantly higher among kidney transplant recipients compared to the general population (SIR 5.1, 95% CI 4.5-5.7). SIR for hospitalization due to influenza was 4.4 (95% CI 3.4-4.7). Mortality of the hospitalized patients was 9%, and 5% of the patients with laboratory-confirmed influenza. Detection of laboratory-confirmed influenza is increased fivefold and risk of hospitalization due to influenza more than fourfold among kidney transplant recipients compared to the general population.
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Affiliation(s)
- Ilkka Helanterä
- Abdominal Center, Transplantation and Liver Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mika Gissler
- Finnish Institute for Health and Welfare, Helsinki, Finland.,Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Stockholm, Sweden
| | | | - Niina Ikonen
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Mari Kanerva
- Department of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Marko Lempinen
- Abdominal Center, Transplantation and Liver Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Patrik Finne
- Abdominal Center, Nephrology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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5
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Hughes K, Middleton DB, Nowalk MP, Balasubramani GK, Martin ET, Gaglani M, Talbot HK, Patel MM, Ferdinands JM, Zimmerman RK, Silveira FP. Effectiveness of Influenza Vaccine for Preventing Laboratory-Confirmed Influenza Hospitalizations in Immunocompromised Adults. Clin Infect Dis 2021; 73:e4353-e4360. [PMID: 33388741 DOI: 10.1093/cid/ciaa1927] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Yearly influenza immunization is recommended for immunocompromised (IC) individuals, although immune responses are lower than that for the non-immunocompromised and the data on vaccine effectiveness (VE) in the IC is scarce. We evaluated VE against influenza-associated hospitalization among IC adults. METHODS We analyzed data from adults ≥ 18 years hospitalized with acute respiratory illness (ARI) during the 2017-2018 influenza season at 10 hospitals in the United States. IC adults were identified using pre-specified case-definitions, utilizing electronic medical record data. VE was evaluated with a test-negative case-control design using multivariable logistic regression with PCR-confirmed influenza as the outcome and vaccination status as the exposure, adjusting for age, enrolling site, illness onset date, race, days from onset to specimen collection, self-reported health, and self-reported hospitalizations. RESULTS Of 3,524 adults hospitalized with ARI, 1,210 (34.3%) had an immunocompromising condition. IC adults were more likely to be vaccinated than non-IC (69.5% vs 65.2%), and less likely to have influenza (22% vs 27.8%). The mean age did not differ among IC and non-IC (61.4 vs 60.8 years old). The overall VE against influenza hospitalization, including immunocompetent adults, was 33% (95% CI, 21% to 44%). VE among IC vs non-IC adults was lower at 5% (-29% to 31%) vs. 41% (27% to 52%) (p<0.05 for interaction term). CONCLUSIONS VE in one influenza season was very low among IC individuals. Future efforts should include evaluation of VE among the different immunocompromising conditions and whether enhanced vaccines improve the suboptimal effectiveness among the immunocompromised.
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Affiliation(s)
- Kailey Hughes
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Donald B Middleton
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | - Emily T Martin
- University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Manjusha Gaglani
- Baylor Scott & White Health, Texas A&M University College of Medicine, Temple, TX, USA
| | - H Keipp Talbot
- Vanderbilt University Medical Center, Nashville, TN, USA
| | - Manish M Patel
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jill M Ferdinands
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Richard K Zimmerman
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,University of Pittsburgh, Pittsburgh, PA, USA
| | - Fernanda P Silveira
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,University of Pittsburgh, Pittsburgh, PA, USA
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6
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González-Montero J, Valenzuela G, Ahumada M, Barajas O, Villanueva L. Management of cancer patients during COVID-19 pandemic at developing countries. World J Clin Cases 2020; 8:3390-3404. [PMID: 32913846 PMCID: PMC7457113 DOI: 10.12998/wjcc.v8.i16.3390] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/09/2020] [Accepted: 08/12/2020] [Indexed: 02/05/2023] Open
Abstract
Cancer patient care requires a multi-disciplinary approach and multiple medical and ethical considerations. Clinical care during a pandemic health crisis requires prioritising the use of resources for patients with a greater chance of survival, especially in developing countries. The coronavirus disease 2019 crisis has generated new challenges given that cancer patients are normally not prioritised for admission in critical care units. Nevertheless, the development of new cancer drugs and novel adjuvant/neoadjuvant protocols has dramatically improved the prognosis of cancer patients, resulting in a more complex decision-making when prioritising intensive care in pandemic times. In this context, it is essential to establish an effective and transparent communication between the oncology team, critical care, and emergency units to make the best decisions, considering the principles of justice and charity. Concurrently, cancer treatment protocols must be adapted to prioritise according to oncologic response and prognosis. Communication technologies are powerful tools to optimise cancer care during pandemics, and we must adapt quickly to this new scenario of clinical care and teaching. In this new challenging pandemic scenario, multi-disciplinary work and effective communication between clinics, technology, science, and ethics is the key to optimising clinical care of cancer patients.
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Affiliation(s)
- Jaime González-Montero
- Basic and Clinical Oncology Department, Faculty of Medicine, University of Chile, Santiago 70058, Chile
| | - Guillermo Valenzuela
- Basic and Clinical Oncology Department, Faculty of Medicine, University of Chile, Santiago 70058, Chile
| | - Mónica Ahumada
- Basic and Clinical Oncology Department, Faculty of Medicine, University of Chile, Santiago 70058, Chile
- Basic and Clinical Oncology Department, Hospital Clinico Universidad de Chile and Clínica Dávila, Chile
| | - Olga Barajas
- Basic and Clinical Oncology Department, Faculty of Medicine, University of Chile, Santiago 70058, Chile
- Basic and Clinical Oncology Department, Hospital Clinico Universidad de Chile and Fundación Arturo López-Pérez, Chile
| | - Luis Villanueva
- Oncology Department, Hospital Clínico Universidad de Chile and Fundación Arturo López-Perez, Chile
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7
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Hussain M, Nasir N, Irfan M, Hasan Z. Clinical characteristics and outcomes of patients with H1N1 influenza pneumonia admitted at a tertiary care hospital in Karachi, Pakistan. Pneumonia (Nathan) 2020; 12:5. [PMID: 32637295 PMCID: PMC7335362 DOI: 10.1186/s41479-020-00070-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/08/2020] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Influenza viruses specifically, A and B mainly contribute to seasonal outbreaks that occur globally. However, due to limited diagnostics for influenza there is little data regarding clinical outcomes of patients with H1N1 pneumonia in our region. Our objective was to determine the clinical characteristics and outcomes of patients hospitalized with H1N1 pneumonia at a tertiary care facility in Karachi, Pakistan. METHODS A retrospective study of adult patients admitted with influenza pneumonia from November 2017 to February 2018 at a tertiary care hospital in Karachi, Pakistan. Patient characteristics were compared between influenza A H1N1 and other types of influenza using multivariable logistic regression analysis and subgroup analysis for factors associated with mortality in H1N1 Pneumonia was performed. RESULTS Out of 497 adult patients with community acquired pneumonia (CAP), 172 fulfilled the criteria for Influenza like illness (ILI). 88 patients had PCR confirmed Influenza pneumonia of whom n = 57 (65%) had Influenza A H1N1. The mean age of patients 53.5 years (SD: 17.3) and 60% were male. The overall mortality from Influenza in this study was 15.9% (n = 14); out of these 11 (78.5%) had Influenza A H1N1. Multivariable analysis showed that the increase in length of hospital admission was significantly associated with H1N1 Influenza A infection (OR: 1.47 CI: 1.2-1.8). Factors associated with mortality showed that presence of ARDS, Septic shock and multi-organ failure was highly significantly associated with death (p-value < 0.001) along with deranged liver function tests (p-value 0.01) and presence of nosocomial infection (p-value 0.027). CONCLUSION Influenza A H1N1 is associated with greater length of stay compared with infection due to other types of Influenza and mortality in H1N1 Pneumonia was found to be associated with presence of nosocomial infection among several other factors which may have implications given higher rates in a low-middle income country.
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Affiliation(s)
- Mujahid Hussain
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, Aga Khan University, Karachi, Pakistan
| | - Nosheen Nasir
- Department of Medicine, Section of Infectious Diseases, Aga Khan University, Karachi, Pakistan
| | - Muhammad Irfan
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, Aga Khan University, Karachi, Pakistan
| | - Zahra Hasan
- Department of Pathology and Laboratory Medicine, Section of Molecular Pathology, Aga Khan University, Karachi, Pakistan
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8
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Li W, Liu LF, Xu JL, Shang SQ. Epidemiological and Immunological Features of Influenza Viruses in Hospitalized Children with Influenza Illness in Hangzhou. Fetal Pediatr Pathol 2020; 39:21-28. [PMID: 31268384 DOI: 10.1080/15513815.2019.1636429] [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] [Indexed: 10/26/2022]
Abstract
Objectives: We evaluated the epidemiological features and various inflammatory markers in hospitalized children with influenza virus infection in China. Methods: The real-time RT-PCR assay was performed for detection and genotyping of influenza A and B virus. Th1/Th2 cytokines, WBC, and CRP were determined in influenza virus positive children. Results: H1N1 and Yamagata were the prevalent genotypes of influenza A and B virus in Hangzhou, respectively. IL-2, IL-10, and CRP were significantly increased and IFN-γ was decreased in children with severe Influenza A virus infection, and TNF-α and IFN-γ levels were found to be significantly lower in children with severe Influenza B virus infection. Conclusion: Increased IL-2, IL-10, and CRP with decreased IFN-γ may indicate a severe influenza A virus infection, and decreased TNF-α and IFN-γ may indicate a severe influenza B virus infection in children.
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Affiliation(s)
- Wei Li
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Li-Fang Liu
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Jia-Lu Xu
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Shi-Qiang Shang
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
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