Search results for "Influenza Virus"

showing 9 items of 29 documents

An international perspective on hospitalized patients with viral community-acquired pneumonia

2019

Background Who should be tested for viruses in patients with community acquired pneumonia (CAP), prevalence and risk factors for viral CAP are still debated. We evaluated the frequency of viral testing, virus prevalence, risk factors and treatment coverage with oseltamivir in patients admitted for CAP. Methods Secondary analysis of GLIMP, an international, multicenter, point-prevalence study of hospitalized adults with CAP. Testing frequency, prevalence of viral CAP and treatment with oseltamivir were assessed among patients who underwent a viral swab. Univariate and multivariate analysis was used to evaluate risk factors. Results 553 (14.9%) patients with CAP underwent nasal swab. Viral CA…

PNEUMONIAMaleMultivariate analysisInternationalityPCV13 pneumococcal conjugate vaccineDatabases FactualHospitalized patientsmedicine.medical_treatmentvirusesCAD coronary artery diseaseTesting030204 cardiovascular system & hematologyMRSA methicillin resistant Staphylococcus aureusPneumònia adquirida a la comunitatRT-PCR reverse transcriptase polymerase chain reactionchemistry.chemical_compound0302 clinical medicineCommunity-acquired pneumoniaTaverne80 and overCommunity-Acquired InfectionViral030212 general & internal medicineProspective StudiesAged 80 and overRIDT rapid influenza diagnostic testCAP community-acquired pneumoniaRSV Respiratory Syncytial virusMiddle AgedICU intensive care unitCommunity-Acquired InfectionsHospitalizationNasal SwabInfectious diseasesFemaleViral swabHumanOseltamivirmedicine.medical_specialtyLogistic ModelCommunity-acquired pneumoniaViral pneumoniaCommunity acquired pneumonia; Influenza; Oseltamivir; Testing; Viral pneumonia; Viral swab; Aged; Aged 80 and over; Antiviral Agents; Community-Acquired Infections; Cross-Sectional Studies; Databases Factual; Female; Hospitalization; Humans; Influenza Human; Internationality; Logistic Models; Male; Medication Adherence; Middle Aged; Oseltamivir; Pneumonia Viral; Prospective StudiesPneumonia ViralAdmissionSettore MED/10 - Malattie Dell'Apparato RespiratorioInfluenzavirusAntiviral AgentsVirusArticleMedication AdherenceHMPV human MetapneumovirusDatabases03 medical and health sciencesLRTI lower respiratory tract infectionOseltamivirInternal medicineInfluenza HumanInternal MedicinemedicineInfluenza virusesHumansHIV Human Immunodeficiency virusPPSV23 pneumococcal polysaccharide vaccineIn patientFactualAgedMechanical ventilationAntiviral AgentCross-Sectional Studiebusiness.industryFEV1 forced expiratory volume in one secondGLIMP global initiative for methicillin-resistant Staphylococcus aureus pneumoniaESBL extended-spectrum beta-lactamasesPneumoniamedicine.diseaseInfluenzaCommunity acquired pneumoniaCI confidence intervalOR odds ratioCross-Sectional StudiesLogistic ModelschemistryCOPD chronic obstructive pulmonary diseasebusinessCommunity acquired pneumonia ; Influenza ; Oseltamivir ; Testing ; Viral pneumonia ; Viral swab
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Seasonal Human Coronavirus Respiratory Tract Infection in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

2021

Abstract Background Little is known about characteristics of seasonal human coronaviruses (HCoVs) (NL63, 229E, OC43, and HKU1) after allogeneic stem cell transplantation (allo-HSCT). Methods This was a collaborative Spanish and European bone marrow transplantation retrospective multicenter study, which included allo-HSCT recipients (adults and children) with upper respiratory tract disease (URTD) and/or lower respiratory tract disease (LRTD) caused by seasonal HCoV diagnosed through multiplex polymerase chain reaction assays from January 2012 to January 2019. Results We included 402 allo-HSCT recipients who developed 449 HCoV URTD/LRTD episodes. Median age of recipients was 46 years (range,…

PNEUMONIAMalevirusesmedicine.medical_treatmentseasonal human coronavirusHematopoietic stem cell transplantationmedicine.disease_causeDISEASElaw.inventionCoronavirus OC43 HumanCLINICAL CHARACTERISTICSlawCoronavirus 229E HumanRisk FactorsImmunology and AllergyChildRespiratory Tract InfectionsNL63 INFECTIONSCoronavirusOUTCOMESRespiratory tract infectionsSYNCYTIAL VIRUSHazard ratioHematopoietic Stem Cell Transplantationvirus diseasesupper and lower respiratory tract diseaseHCoV-NL63HCoV-229Erespiratory systemMiddle AgedIntensive care unitHospitalizationimmunocompromisedsurgical procedures operativeInfectious Diseasesmedicine.anatomical_structureAcademicSubjects/MED00290Child PreschoolCohortFemaleSeasonsCoronavirus InfectionsRare cancers Radboud Institute for Health Sciences [Radboudumc 9]allogeneic hematopoietic stem cell transplantation; community-acquired respiratory virus; HCoV-229E; HCoV-HKU1; HCoV-NL63; HCoV-OC43; immunocompromised; immunodeficiency score index; multiplex PCR assay; seasonal human coronavirus; upper and lower respiratory tract diseaseAdultmedicine.medical_specialtyHCoV-OC43AdolescentDIAGNOSISCHINAHCoV-HKU1BetacoronavirusAll institutes and research themes of the Radboud University Medical Centerstomatognathic systemInternal medicinemedicineMajor ArticleRHINOVIRUSHumansallogeneic hematopoietic stem cell transplantationAgedRetrospective Studiescommunity-acquired respiratory virusbusiness.industryInfantmultiplex PCR assayTransplantationCoronavirus NL63 HumanPARAINFLUENZA VIRUSbusinessimmunodeficiency score indexRespiratory tract
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Traditional Chinese herbal medicine at the forefront battle against COVID-19: Clinical experience and scientific basis.

2020

Abstract Background Throughout the 5000-year history of China, more than 300 epidemics were recorded. Traditional Chinese herbal medicine (TCM) has been used effectively to combat each of these epidemics’ infections, and saved many lives. To date, there are hundreds of herbal TCM formulae developed for the purpose of prevention and treatment during epidemic infections. When COVID-19 ravaged the Wuhan district in China in early January 2020, without a deep understanding about the nature of COVID-19, patients admitted to the TCM Hospital in Wuhan were immediately treated with TCM and reported later with >90% efficacy. Approach We conducted conduct a systematic survey of various TCM herbal pre…

PTGS2 Prostaglandin-endoperoxide synthase 2BattleAIV avian influenza virusCoV coronavirusPharmaceutical ScienceiNOS nitric oxide synthaseViral infection0302 clinical medicinePA patchouli alcoholSARS Severe Acute Respiratory SyndromeSMD Sheganmahuang decoctionDrug DiscoveryPandemicIL InterleukinMedicine Chinese TraditionalALI acute lung injuriesmedia_commonCOVID-19 coronavirus disease 2019MXSG Ma xing shi gan decoction0303 health sciencesTNF tumor necrosis factorClinical Trials as TopicCCL2 CC chemokine ligand 2FM1 FM1 coronavirusICU intensive care unitc-AMP cyclic adenosine phosphateHIV human immunodeficiency virus030220 oncology & carcinogenesisCOX-2 cyclooxygenase-2Molecular MedicineHerbal preparationsMedicinal herbsAbbreviations: ACE2 angiotensin-converting enzyme IITCM traditional Chinese medicineHSV-1 herpes simplex virus 1CASP3 caspase 3medicine.medical_specialtyChinaCoronavirus disease 2019 (COVID-19)Systematic surveymedia_common.quotation_subjectJEV Japanese encephalitis virusNF-κB nuclear factor kappa B cellsAntiviral AgentsArticleWHO World Health Organization03 medical and health sciencesIEC-6 rat intestinal epithelial cell line 6SOD superoxide dismutaseCDC Center for Disease Control and PreventionmedicineAVP arginine vasopressinPGE2 prostaglandin E2HumansIntensive care medicineLH Lianhuaqingwen capsule030304 developmental biologyPharmacologyMedicinal herbMDA malondialdehydeGCGJ Gancao ganjiang decoctionNO nitric oxidePlants Medicinalbusiness.industrySARS-CoV-2COVID-19CXCL C-X-C- motif chemokineMDCK Madin-Darby Canine Kidney cellsTLR-4 Toll-like receptor-4COVID-19 Drug TreatmentComplementary and alternative medicineViral infectionLPS lipopolysaccharidesRSV respiratory syncytial virusQFPD Qingfeipaidu decoctionbusinessLung congestionECMO extracorporeal membrane oxygenationMAPK mitogen-activated protein kinasePhytotherapyDrugs Chinese HerbalPhytomedicine : international journal of phytotherapy and phytopharmacology
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The clinical benefit of instituting a prospective clinical community-acquired respiratory virus surveillance program in allogeneic hematopoietic stem…

2019

Highlights • Rapid detection methods used as first diagnostic test for CARVs may delayed the start of antiviral therapy in a significant number of influenza and RSV cases. • Syndromic multiplex RT-PCR-based prospective clinical CARV survey in allo-HCT recipients translates into a lower mortality rate as compared to standard clinical practice based on RSV and influenza virus rapid detection test. • We found that donor/recipient HLA mismatch, CARV LRTD and high-risk ISI were also associated with higher mortality.

Prospective respiratory virus surveillance program0301 basic medicineMicrobiology (medical)medicine.medical_specialtymedicine.medical_treatment030106 microbiologyHematopoietic stem cell transplantationRespiratory syncytial virusArticleParainfluenza virus03 medical and health sciences0302 clinical medicineStudy reportCommunity-acquired respiratory virusInternal medicinemedicineHumansProspective Studies030212 general & internal medicineStage (cooking)Prospective cohort studyRespiratory Tract InfectionsRetrospective Studiesbusiness.industryHematopoietic Stem Cell TransplantationRetrospective cohort studyInfluenzaInfectious Diseasesmedicine.anatomical_structureRespiratory virus infectionVirusesAllogeneic hematopoietic stem cell transplantationRespiratory virusbusinessLower mortalityImmunodeficiency score indexRespiratory tractJournal of Infection
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Factors associated with influenza vaccination of hospitalized elderly patients in Spain

2016

Vaccination of the elderly is an important factor in limiting the impact of influenza in the com- munity. The aim of this study was to investigate the factors associated with influenza vacci- nation coverage in hospitalized patients aged 65 years hospitalized due to causes unrelated to influenza in Spain. We carried out a cross-sectional study. Bivariate analysis was performed comparing vaccinated and unvaccinated patients, taking in to account sociodemographic variables and medical risk conditions. Multivariate analysis was per- formed using multilevel regression models. We included 1038 patients: 602 (58%) had received the influenza vaccine in the 2013 - 14 season. Three or more general p…

RNA virusesMaleViral Diseaseslcsh:MedicineGlobal HealthPersones gransGeographical LocationsPneumococcal VaccinesElderlyMedicine and Health SciencesPublic and Occupational HealthVacunaciólcsh:SciencePathology and laboratory medicineAged 80 and overVaccinesVaccinationMedical microbiologyVaccination and ImmunizationEuropeInfectious DiseasesStreptococcus pneumoniaeInfluenza A virusInfluenza VaccinesVirusesFemalePathogensAssistència hospitalàriaResearch ArticleImmunologyMicrobiologyInfluenzavirusPatient Education as TopicInfluenza HumanHumansInfluenza virusesEspanyaAgedInpatientsHospital careMarital Statuslcsh:ROrganismsViral pathogensBiology and Life SciencesPneumonia PneumococcalInfluenzaMicrobial pathogensCross-Sectional StudiesSocial ClassAge GroupsSpainPeople and PlacesPopulation Groupingslcsh:QPreventive MedicineOlder peopleOrthomyxoviruses
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Shared determinants between virus-infected and trinitrophenyl-conjugated H-2-identical target cells detected in cell-mediated lympholysis

1976

Infection of H-2-identical mice with either lymphocytic choriomeningitis (LCM) virus, vaccinia virus, or paramyxo (Sendai) virus resulted in the generation of specifically sensitized cytotoxic T lymphocytes (CTL). CTL generated in vitro against 2,4,6-trinitrophenyl (TNP)-conjugated syngeneic stimulator cells were specifically cytotoxic for TNP-conjugated H-2K (D) region identical targets. Both LCM and vaccinia-induced CTL, however, were found to be strongly cytotoxic towards TNP-conjugated, H-2K(D) region-identical target cells. In contrast, Sendai virus-induced CTL did not lyse TNP-conjugated, syngeneic target cells. Inhibition experiments using cold targets suggested that shared antigenic…

T-LymphocytesvirusesImmunologyMice Inbred StrainsVaccinia viruschemical and pharmacologic phenomenaCross ReactionsBiologyLymphocytic choriomeningitisVirusEpitopeEpitopesMicechemistry.chemical_compoundAntigenHistocompatibility AntigensmedicineAnimalsLymphocytic choriomeningitis virusImmunology and AllergyCytotoxic T cellCells CulturedNitrobenzeneshemic and immune systemsCytotoxicity Tests Immunologicmedicine.diseaseVirologyIn vitroParainfluenza Virus 1 HumanCold TemperatureCTL*chemistryTrinitrobenzenesVacciniaEuropean Journal of Immunology
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A mid-term estimate of 2018/2019 vaccine effectiveness to prevent laboratory confirmed A(H1N1)pdm09 and A(H3N2) influenza cases in Sicily (Italy)

2019

Abstract Influenza season started in Italy during the month of October 2018, approaching the epidemic peak in January 2019. This report aim to explore the mid-term virologic surveillance data of the 2018–2019 influenza season in Sicily and to estimate the effectiveness of seasonal influenza vaccine (VE) against A(H1N1)pdm09 and A(H3N2) influenza viruses. A test-negative design was used to evaluate influenza VE. In Sicily, almost all influenza infections were sustained by influenza type A viruses, of which 62.3% were A(H3N2) and 36.3% A(H1N1)pdm09. A reduction of laboratory confirmed influenza cases in Sicilian population immunized against influenza were observed. In particular, an overall s…

Test-negative designAdultMaleVeterinary medicineSurveillance dataAdolescent030231 tropical medicinePopulationInfluenza seasonSurveillance networkSeasonal influenzaYoung Adult03 medical and health sciencesInfluenza A Virus H1N1 Subtype0302 clinical medicineInfluenza vaccine effectiveneInfluenza HumanHumansMedicine030212 general & internal medicineChildeducationSicilyVaccine PotencyAgededucation.field_of_studyGeneral VeterinaryGeneral Immunology and Microbiologybusiness.industryInfluenza A Virus H3N2 SubtypeInfluenza epidemicVaccinationPublic Health Environmental and Occupational HealthInfantvirus diseasesInfluenza aLaboratory confirmed caseMiddle AgedA h1n1 pdm09Infectious DiseasesInfluenza viruseInfluenza VaccinesCase-Control StudiesChild PreschoolMolecular MedicineFemaleImmunizationbusinessVaccine
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A Trans-amplifying RNA Vaccine Strategy for Induction of Potent Protective Immunity

2019

Here, we present a potent RNA vaccine approach based on a novel bipartite vector system using trans-amplifying RNA (taRNA). The vector cassette encoding the vaccine antigen originates from an alphaviral self-amplifying RNA (saRNA), from which the replicase was deleted to form a transreplicon. Replicase activity is provided in trans by a second molecule, either by a standard saRNA or an optimized non-replicating mRNA (nrRNA). The latter delivered 10- to 100-fold higher transreplicon expression than the former. Moreover, expression driven by the nrRNA-encoded replicase in the taRNA system was as efficient as in a conventional monopartite saRNA system. We show that the superiority of nrRNA- ov…

Translational efficiencyGenetic VectorsRNA-dependent RNA polymeraseHemagglutinin (influenza)Hemagglutinin Glycoproteins Influenza VirusBiologyAntibodies ViralMadin Darby Canine Kidney CellsMice03 medical and health sciencesDogsImmunogenicity VaccineInfluenza A Virus H1N1 Subtype0302 clinical medicineOrthomyxoviridae InfectionsCricetinaeInfluenza HumanDrug DiscoveryGeneticsAnimalsHumansViral Replicase Complex ProteinsRepliconMolecular BiologyGene030304 developmental biologyPharmacologyMice Inbred BALB C0303 health sciencesMessenger RNAVaccinationRNATranslation (biology)Antibodies NeutralizingSemliki forest virusVirologyHEK293 CellsInfluenza Vaccines030220 oncology & carcinogenesisbiology.proteinRNA ViralMolecular MedicineFemaleOriginal ArticleMolecular Therapy
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The relevance for Public Health of the mid-term and interim analyses of seasonal influenza vaccination effectiveness

2019

Worldwide, influenza is commonly recognized as a respiratory virus that causes a high number of deaths every year, especially among elderly adults and people with chronic illnesses. In order to reduce morbidity and mortality, many countries have implemented, in the last decades, universal influenza vaccination programs with special attention on groups at increased risk of developing the disease, such as pregnant women, children aged 6–59 months, elderly adults and individuals with specific chronic medical conditions. In real-world conditions, observational (nonrandomized) studies on vaccine effectiveness (VE) could measure,the risk reduction of contracting a disease and are considered the g…

medicine.medical_specialtybusiness.industryPublic healthsurveillance networktest-negative designinfluenza vaccine effectiveneSettore MED/42 - Igiene Generale E ApplicataTerm (time)VaccinationSeasonal influenzaVirologyEnvironmental healthInterimmedicineinfluenza viruseRelevance (information retrieval)influenza epidemicbusinesslaboratory confirmed case
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