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Ásgeir Haraldsson - Prófessor

Mynd af gervimanni

–

Heilbrigðisvísindasvið

Ásgeir Haraldsson

Prófessor

Prófessorí barnalækningum, yfirlæknir á Barnaspítala Hringsins

Aðsetur
LSH - Hringbraut
Sími
5431000 8245270
Tölvupóstur
asgeirh [hjá] hi.is

Starfseining
Læknadeild
Vefsíða
http://quickplace.landspitali.is/QuickPlace/ah/PageLibrary00256D8200653D8D.nsf/h_Toc/73c19a9d0a8a02da00256d82006691eb/?OpenDocument

ORCID vefsíða
https://orcid.org/0000-0001-5364-7877
Rannsóknagátt – Ásgeir Haraldsson

Show Útgefið efni

2025

A Striking Increase in Carriage Among Young Children in Iceland Paralleled the Unprecedented Increase of Invasive Group A Streptococcal Infection From 2022 to 2023The Pediatric infectious disease journal
Genome-wide analyses identify 25 infertility loci and relationships with reproductive traits across the allele frequency spectrumNature Genetics
Influenza vaccine effectiveness in Iceland 2014-2022Vaccine

2023

Adequate immune responses to vaccines after chemotherapy for leukaemia diagnosed in childhoodActa Paediatrica, International Journal of Paediatrics
Long COVID in Icelandic ChildrenThe Pediatric infectious disease journal
Deficit of homozygosity among 1.52 million individuals and genetic causes of recessive lethalityNature Communications
Febrile Children with Pneumonia Have Higher Nasopharyngeal Bacterial Load Than Other Children with FeverPathogens
Meningococcal carriage in children and young adultsEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Nasopharyngeal competition dynamics are likely to be altered following vaccine introductionMicrobial genomics
Obesity in adolescents does not influence early immune responses to influenza vaccinationInfectious diseases (London, England)
Publisher Correction: Deficit of homozygosity among 1.52 million individuals and genetic causes of recessive lethalityNature Communications
Rannsóknir – þekking – þjónustaLæknablaðið

2024

Early-onset group B streptococcal infections in five Nordic countries with different prevention policies, 1995 to 2019Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Genome-wide analyses identify 21 infertility loci and over 400 reproductive hormone loci across the allele frequency spectrummedRxiv : the preprint server for health sciences
Improved use of antibiotics following implementation of antimicrobial stewardship in a neonatal intensive care unitInfection Control and Hospital Epidemiology
Influenza vaccination in pregnant women in Iceland 2010-2020 and the burden of influenza in pregnant women and their infantsVaccine
Tonsillectomies are associated with an increased risk of meningococcal carriageInfectious Diseases
Variant in the synaptonemal complex protein SYCE2 associates with pregnancy loss through effect on recombinationNature Structural and Molecular Biology

2022

Clinical and Socioeconomic Burden of Respiratory Syncytial Virus in IcelandPediatric Infectious Disease Journal
Continuous increase of immunoglobulin therapy in IcelandClinical Immunology Communications
Nasopharyngeal competition dynamics are likely to be altered following vaccine introduction: bacteriocin prevalence and diversity among Icelandic and Kenyan pneumococcibioRxiv
Proteomic profiles in cerebrospinal fluid predicted death and disability in term infants with perinatal asphyxia: A pilot studyActa Paediatrica, International Journal of Paediatrics
SARS-CoV-2 Infections in Icelandic ChildrenPediatric Infectious Disease Journal
Simplified antibiotic treatment for paediatric osteoarticular infections achieved good outcomesActa Paediatrica, International Journal of Paediatrics
The cerebrospinal fluid proteome of preterm infants predicts neurodevelopmental outcomeFrontiers in Pediatrics

2021

Longitudinal asthma and allergy study showed that childhood symptoms frequently persisted into adulthoodActa Paediatrica, International Journal of Paediatrics
Burden of rotavirus disease in young children in Iceland – Time to vaccinate?Vaccine
Children may need higher vancomycin doses to achieve therapeutic levelsActa Paediatrica, International Journal of Paediatrics
Decreasing death rates and causes of death in Icelandic children-A longitudinal analysisPLoS ONE
Group B streptococcal infections in infants in IcelandJournal of Medical Microbiology
Hematopoietic Stem Cell Transplantation Resolves the Immune Deficit Associated with STAT3-Dominant-Negative Hyper-IgE SyndromeJournal of Clinical Immunology
HSCT in two brothers with CGD arising from mutations in CYBC1 corrects the defect in neutrophil functionClinical Immunology
Low Risk of Central Line-associated Bloodstream Infections in Pediatric Hematology/Oncology PatientsPediatric Infectious Disease Journal
No One Will be Safe until Our Children are SafePediatric Infectious Disease Journal
The impact and cost-effectiveness of introducing the 10-valent pneumococcal conjugate vaccine into the paediatric immunisation programme in Iceland-A population-based time series analysisPLoS ONE
Using symptom-based case predictions to identify host genetic factors that contribute to COVID-19 susceptibilityPLoS ONE

2020

Impact of the 10-valent pneumococcal conjugate vaccine on hospital admissions in children under three years of age in IcelandVaccine
Reduction of antimicrobial resistant pneumococci seven years after introduction of pneumococcal vaccine in IcelandPLoS ONE

2019

Abdominal pain is a common and recurring problem in paediatric emergency departmentsActa Paediatrica, International Journal of Paediatrics
Genomic Analyses of >3,100 Nasopharyngeal Pneumococci Revealed Significant Differences Between Pneumococci Recovered in Four Different Geographical RegionsFrontiers in Microbiology
Increase in tympanostomy tube placements despite pneumococcal vaccination, a population-based studyActa Paediatrica, International Journal of Paediatrics
MRSA outbreak in a tertiary neonatal intensive care unit in IcelandInfectious Diseases
Tardy development of safe medicines for childrenActa Paediatrica, International Journal of Paediatrics
The Effect of the 10-Valent Pneumococcal Nontypeable Haemophilus influenzae Protein D Conjugate Vaccine on H. influenzae in Healthy Carriers and Middle Ear Infections in IcelandJournal of Clinical Microbiology

2018

A homozygous loss-of-function mutation leading to CYBC1 deficiency causes chronic granulomatous diseaseNature Communications
Decreased Acute Otitis Media with Treatment Failure after Introduction of the Ten-valent Pneumococcal Haemophilus influenzae Protein D Conjugate VaccinePediatric Infectious Disease Journal
Effect of Vaccination on Pneumococci Isolated from the Nasopharynx of Healthy Children and the Middle Ear of Children with Otitis Media in IcelandJournal of Clinical Microbiology
Impact of the 10-valent pneumococcal conjugate vaccine on antimicrobial prescriptions in young children: a whole population studyBMC Infectious Diseases
Reduction in All-Cause Acute Otitis Media in Children <3 Years of Age in Primary Care Following Vaccination with 10-Valent Pneumococcal Haemophilus influenzae Protein-D Conjugate VaccineClinical Infectious Diseases
Vaccination of icelandic children with the 10-valent pneumococcal vaccine leads to a significant herd effect among adults in IcelandJournal of Clinical Microbiology
Vaccine implementation reduces inequityThe Lancet Global Health

2017

Ataxia-telangiectasiaClinical Immunology
Comparison of Serotype Prevalence of Pneumococci Isolated from Middle Ear, Lower Respiratory Tract and Invasive Disease Prior to Vaccination in IcelandPLoS ONE
Pneumococcal vaccination: Direct and herd effect on carriage of vaccine types and antibiotic resistance in Icelandic childrenVaccine

2016

Breytt viðhorf til sýklalyfjaávísana hjá íslenskum heimilis-og heilsugæslulæknumLæknablaðið
ErratumJournal of Clinical Microbiology
Putatively novel serotypes and the potential for reduced vaccine effectivenessMicrobial genomics

2015

Decreased incidence of respiratory infections in children after vaccination with ten-valent pneumococcal vaccinePediatric Infectious Disease Journal
Decreased postural control in adolescents born with extremely low birth weightExperimental Brain Research
Epidemiology of Primary Immunodeficiency in IcelandJournal of Clinical Immunology
Genomics reveals the worldwide distribution of multidrug-resistant serotype 6E pneumococciJournal of Clinical Microbiology
Loss-of-function variants in ATM confer risk of gastric cancerNature Genetics
Low mortality of Staphylococcus aureus bacteremia in icelandic children nationwide study on incidence and outcomeJournal of Pediatric Infectious Diseases
Nationwide Incidence of Acquired Central Nervous System Demyelination in Icelandic ChildrenPediatric Neurology
Public opinion on childhood immunisations in IcelandVaccine

2014

Long-term effects from bacterial meningitis in childhood and adolescence on postural controlPLoS ONE

2013

Antibody deficiency in patients with ataxia telangiectasia is caused by disturbed B- and T-cell homeostasis and reduced immune repertoire diversityJournal of Allergy and Clinical Immunology
Approved and unapproved use of immunoglobulins in IcelandJournal of Allergy and Clinical Immunology
Bacterial meningitis in children in Iceland, 1975-2010Scandinavian Journal of Infectious Diseases
Behavior and well-being of extremely low birth weight teenagers in IcelandEarly Human Development

2012

A long-term follow-up of allergic diseases in IcelandPediatric Allergy and Immunology
Disabilities and health of extremely low-birthweight teenagersActa Paediatrica, International Journal of Paediatrics
Kawasaki-sjúkdómur á Íslandi 1996-2005, faraldsfræði og fylgikvillarLaeknabladid
Survival and neurodevelopmental outcome of ELBW children at 5 years of ageActa Paediatrica, International Journal of Paediatrics

2011

Beina- og liðasýkingar barna á Íslandi af völdum baktería á tímabilinu 1996-2005Laeknabladid
Cutaneous granulomas in ataxia telangiectasia and other primary immunodeficienciesDermatology
Increasing incidence of late-onset neonatal invasive group B streptococcal infections in IcelandPediatric Infectious Disease Journal
Úlfur, úlfurLaeknabladid

2010

Bacteraemia in children in Iceland 1994-2005Acta Paediatrica, International Journal of Paediatrics
Krabbamein hjá börnum á Íslandi árin 1981-2006Læknablaðið
Lifun og dánarorsakir barna sem greindust með krabbamein á Íslandi 1981-2006Læknablaðið

2009

An increasing incidence of mastoiditis in children in IcelandScandinavian Journal of Infectious Diseases
Ataxia-telangiectasia patients presenting with hyper-IgM syndromeArchives of Disease in Childhood
Hlaupabóla hjá börnum á Íslandi - Faraldsfræði og fylgikvillarLaeknabladid
Suspected infections in children treated for ALLActa Paediatrica, International Journal of Paediatrics
Vβ usage and T regulatory cells in children following partial or total thymectomy after open heart surgery in infancyScandinavian Journal of Immunology

2008

Áhrif eðlilegrar fæðingar á súrefnisflutning til fóstursLaeknabladid
Blóðsýkingar barna á Íslandi 1994-2005Laeknabladid
Blóðsýkingar barna með æxli og illkynja sjúkdóma 1991-2000Laeknabladid
Botnlangabólga og botnlangataka hjá bönum á sjúrahúsum í Reykjavík? 1996 og 2006Laeknabladid
High prevalence of allergic diseases and sensitization in a low allergen countryActa Paediatrica, International Journal of Paediatrics
Lág þéttni natríums í sermi fyrirburaLaeknabladid

2007

Öndunarerfiðleikar hjá nýburum sem fæðast með valkeisaraskurðiLæknabladid
Stikilbólga hjá börnum á Islandi.Læknabladid
The effects of smoking in pregnancy on factors influencing fetal growthActa Paediatrica, International Journal of Paediatrics

2006

Evidence for extrathymic T cell maturation after thymectomy in infancyClinical and Experimental Immunology
Proteome analysis of vernix caseosaPediatric Research
Samráð með fjarlækningum á ÍslandiLæknabladid

2005

Increased frequency of C4B*Q0 alleles in patients with Henoch-Schönlein purpuraScandinavian Journal of Immunology
Meðfædd vélindalokun á Íslandi 1063-2002Læknablaðið
Respiratory syncytial virus and other respiratory viruses during the first 3 months of life promote a local T_H2-like responseJournal of Allergy and Clinical Immunology
Vernix caseosa as a multi-component defence system based on polypeptides, lipids and their interactionsCellular and Molecular Life Sciences
Þekjun bólusetningar barna við Monkey Bay, MalavíLæknablaðið

2004

30 antimicrobial components of vernix caseosaPediatric Research
Congenital cardiac malformations in Iceland from 1990 through 1999Cardiology in the Young
Meðfædd vélindalokun á Íslandi 1963-2002Læknablaðið
The effect of dietary fish oil on survival after infection with Klebsiella pneumoniae or Streptococcus pneumoniaeScandinavian Journal of Infectious Diseases
The improved survival of experimental animals fed with fish oil is suppressed by a leukotriene inhibitorScandinavian Journal of Immunology
The influence of partial or total thymectomy during open heart surgery in infants on the immune function later in lifeClinical and Experimental Immunology

2003

Development of Immunoglobulin a in Infancy and ChildhoodScandinavian Journal of Immunology
Resistance in respiratory tract pathogens and antimicrobial use in Icelandic and Lithuanian childrenScandinavian Journal of Infectious Diseases

2002

Áhrif lýsisríks fæðis á lifun músa eftir sýkingu með Klebsiella pneumoniae eða Streptococcus pneumoniaeLæknablaðið
ErratumClinical and Experimental Immunology
Familial predisposition and cosegregation analysis of adult obstructive sleep apnea and the sudden infant death syndromeAmerican Journal of Respiratory and Critical Care Medicine
Findings in familial haemophagocytic lymphohistiocytosis prior to symptomatic presentationActa Paediatrica, International Journal of Paediatrics
Greining, árangur meðferðar og síðkomnar aukaverkanir æxla í miðtaugakerfi í æskuLæknablaðið
Heilahimnubólga af völdum baktería hjá eins mánaðar til 16 ára gömlum börnum á þremur barnadeildum á ÍslandiLæknablaðið
Henoch-Schönlein purpura : innlagnir á LSH 1984-2000Læknablaðið
Increased expression of interleukin-13 but not interleukin-4 in CD4⁺ cells from patients with the hyper-IgE syndromeClinical and Experimental Immunology
Nýgengi og greining meðfæddra hjartagalla á Íslandi 1990-1999Læknablaðið
Síðkomnar og langvinnar aukaverkanir eftir hvítblæðismeðferð í æskuLæknablaðið
Verndandi áhrif lýsisríks fæðis eftir sýkingar eru óháð íkomustað bakteríannaLæknablaðið

2001

Áhrif lýsisneyslu á bakteríuvöxt in vivoLæknablaðið
Immunoglobulin class and subclass concentrations after treatment of childhood leukemiaPediatric Hematology and Oncology
Spectrum of perforin gene mutations in familial hemophagocytic lymphohistiocytosisAmerican Journal of Human Genetics

2000

Ofnæmi og astmi hjá íslenskum börnumLæknablaðið
Serum immunoglobulinD in infants and childrenScandinavian Journal of Immunology
Þegar þú ert orðinn stórLæknablaðið

1999

Immunoglobulin-secreting cells in cord bloodScandinavian Journal of Immunology
Íslenskur drengur með Lyme-sjúkdómLæknablaðið
Paediatric burns in Iceland. Hospital admissions 1982-1995, a populations based studyBurns

1998

Stofnfrumugræðlingar blóðmyndandi vefsLæknablaðið

1997

Brunaslys barna á ÍslandiLæknablaðið
Dieatry fish-oil supple-mentation increases survival in mice following Klebsiella Pneumoniae infectionScandinavian Journal of Infectious Diseases
Lýsisneysla eykur lifun músa eftir sýkingu með Klebsiella pneumoniaeLæknablaðið
T cell subsets and T cell function in cartilage-hair hypoplasiaScandinavian Journal of Immunology

1996

Busulphan kinetics and limited sampling model in children with leukemia and inherited disordersBone Marrow Transplantation
CD4 deficiency in myelodysplastic syndrome with monosomy 7European Journal of Pediatrics
Follow-up of leucocyte and reticulocyte counts for the prediction of early graft failure after non-HLA-identical BMT in childrenBone Marrow Transplantation
Identification of an unusual Fcγ receptor IIIa (CD16) on natural killer cells in a patient with recurrent infectionsBlood
Kostnaður sparnaðarLæknablaðið
Risk factors for developing EBV-related B cell lymphoproliferative disorders (BLPD) after non-HLA-identical BMT in childrenBone Marrow Transplantation

1995

Altered immunoglobulin concentrations and light chain ratios in juvenile onset mixed connective tissue diseaseClinical Rheumatology

1994

Light chain ratios and concentrations of immunoglobulins g, a, and m in childhood common acute lymphoblastic leukemiaPediatric Hematology and Oncology
Postmortem findings in the Nijmegen breakage syndromeFetal and Pediatric Pathology
Relationship between patterns of engraftment in peripheral blood and immune reconstitution after allogeneic bone marrow transplantation for (severe) combined immunodeficiencyBlood

1993

Antibody deficiency and isolated growth hormone deficiency in a girl with Mulibrey nanismEuropean Journal of Pediatrics
Changes in cell and protein content of cerebrospinal fluid in children with acute lymphoblastic leukaemia after allogeneic bone marrow transplantationBone Marrow Transplantation
Chimerism and immune reconstitution following allogeneic bone marrow transplantation for severe combined immunodeficiency diseaseImmunodeficiency
Clinical and immunological follow-up in children with hyper-IgD syndromeImmunodeficiency
Immunoglobulin light chain ratios in ataxia telangiectasia and in Nijmegen breakage syndromeImmunologia Clinica
Light chain ratios and concentrations of serum immunoglobulins in IgA deficiencyImmunologia Clinica
Raised IgA κ/λ ratio in juvenile chronic arthritis [2]Clinical and Experimental Rheumatology

1992

Immunoglobulin G, A and M light chain ratio in childrenAnnals of Clinical Biochemistry
Immunoglobulin G, A, and M Light Chain Ratios in some Humoral Immunological DisordersScandinavian Journal of Immunology
Immunological studies in the hyper-immunoglobulin D syndromeJournal of Clinical Immunology
KattarklórskvilliLæknablaðið
Light chain ratios and concentrations of serum immunoglobulins in children with epilepsyEpilepsy Research
New syndromeAmerican Journal of Medical Genetics

1991

Cartilage hair hypoplasia, metaphyseal chondrodysplasia type McKusickAmerican Journal of Medical Genetics
Determination of kappa and lambda light chains in serum immunoglobulins G, A and MAnnals of Clinical Biochemistry
Griscelli disease with cerebral involvementEuropean Journal of Pediatrics
Immunological studies in Bloom's syndrome. A follow-up reportAnnales de Genetique

1990

Kattekrabziekte.Tijdschrift voor Kindergeneeskunde
Prevalence of igm antibodies to nine legionella species in icelandic childrenScandinavian Journal of Infectious Diseases

1989

Half-life of maternal labetalol in a premature infantPharmaceutisch Weekblad Scientific Edition
Orsakir lungnabólgu á Borgarspítalanum 1. desember 1983 til 30. nóvember 1984Læknablaðið
Severe adverse effects of maternal labetalol in a premature infantActa Paediatrica Scandinavica

1988

Legionellosis meðal íslenskra barnaLæknablaðið

1985

Thyrotoxicosis in Iceland 1980–1982Acta Medica Scandinavica

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