Jonas Hedlund

Publications
CV
Public outreach and news

Articles

Article: INFECTIOUS DISEASES. 2023;55(6):396-404
Measurement of lactate in pleural fluid rapidly identify infection and guide therapy
Johansson N; Ydsten KA; Backman-Johansson C; Vondracek M; Hedlund J
Article: JOURNAL OF INFECTION. 2022;85(2):167-173
Pneumococcal urinary antigen testing for antimicrobial guidance in community-acquired pneumonia-A register-based cohort study
Athlin S; Magnuson A; Spindler C; Hedlund J; Stralin K; Naucler P
Article: CRITICAL CARE MEDICINE. 2022;50(5):825-836
Ventilator-Associated Lower Respiratory Tract Bacterial Infections in COVID-19 Compared With Non-COVID-19 Patients*
Hedberg P; Ternhag A; Giske CG; Stralin K; Ozenci V; Johansson N; Spindler C; Hedlund J; Martensson J; Naucler P
Article: BMC INFECTIOUS DISEASES. 2022;22(1):108
Bacterial co-infections in community-acquired pneumonia caused by SARS-CoV-2, influenza virus and respiratory syncytial virus
Hedberg P; Johansson N; Ternhag A; Abdel-Halim L; Hedlund J; Naucler P
Article: CRITICAL CARE. 2021;25(1):291
Cerebrospinal fluid cell count variability is a major confounding factor in external ventricular drain-associated infection surveillance diagnostics: a prospective observational study
Badholm M; Blixt J; Glimaker M; Ternhag A; Hedlund J; Nelson DW
Article: JOURNAL OF INTERNAL MEDICINE. 2019;286(6):689-701
The changing epidemiology of community-acquired pneumonia: nationwide register-based study in Sweden
Naucler P; Henriques-Normark B; Hedlund J; Galanis I; Granath F; Ortqvist A
Article: EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY AND INFECTIOUS DISEASES. 2019;38(2):297-304
The bacteriology in adult patients with pneumonia and parapneumonic effusions: increased yield with DNA sequencing method
Johansson N; Vondracek M; Backman-Johansson C; Skold MC; Andersson-Ydsten K; Hedlund J
Article: CLINICAL MICROBIOLOGY AND INFECTION (CMI). 2017;23(4):247-252
Narrow-spectrum β-lactam monotherapy in hospital treatment of community-acquired pneumonia: a register-based cohort study
Rhedin S; Galanis I; Granath F; Ternhag A; Hedlund J; Spindler C; Naucler P
Article: PLOS ONE. 2016;11(7):e0159694
The IRIDICA PCR/Electrospray Ionization-Mass Spectrometry Assay on Bronchoalveolar Lavage for Bacterial Etiology in Mechanically Ventilated Patients with Suspected Pneumonia
Stralin K; Ehn F; Giske CG; Ullberg M; Hedlund J; Petersson J; Spindler C; Ozenci V
Article: PLOS ONE. 2015;10(10):e0140112
Clinical and Microbiological Factors Associated with High Nasopharyngeal Pneumococcal Density in Patients with Pneumococcal Pneumonia
Alpkvist H; Athlin S; Naucler P; Herrmann B; Abdeldaim G; Slotved H-C; Hedlund J; Stralin K
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2014;46(11):787-791
Procalcitonin levels in community-acquired pneumonia - correlation with aetiology and severity
Johansson N; Kalin M; Backman-Johansson C; Larsson A; Nilsson K; Hedlund J
Article: BMJ OPEN RESPIRATORY RESEARCH. 2014;1(1):e000038
Improvement of CRB-65 as a prognostic tool in adult patients with community-acquired pneumonia.
Dwyer R; Hedlund J; Henriques-Normark B; Kalin M
Article: JOURNAL OF INTERNAL MEDICINE. 2012;271(3):282-293
Soluble CD27 induces IgG production through activation of antigen-primed B cells
Dang LVP; Nilsson A; Ingelman-Sundberg H; Cagigi A; Gelinck LBS; Titanji K; De Milito A; Grutzmeier S; Hedlund J; Kroon FP; Chiodi F
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2011;43(8):609-615
Clinical impact of combined viral and bacterial infection in patients with community-acquired pneumonia
Johansson N; Kalin M; Hedlund J
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2011;43(6-7):448-455
Improvement of CRB-65 as a prognostic scoring system in adult patients with bacteraemic pneumococcal pneumonia
Dwyer R; Hedlund J; Darenberg J; Henriques-Normark B; Naucler P; Runesdotter S; Kalin M
Article: CLINICAL INFECTIOUS DISEASES. 2010;50(2):202-209
Etiology of Community-Acquired Pneumonia: Increased Microbiological Yield with New Diagnostic Methods
Johansson N; Kalin M; Tiveljung-Lindell A; Giske CG; Hedlund J
Article: VACCINE. 2008;26(43):5541-5546
Effects of a large-scale introduction of the pneumococcal polysaccharide vaccine among elderly persons in Stockholm, Sweden
Spindler C; Hedlund J; Jasir A; Normark BH; Ortqvist A
Article: LAKARTIDNINGEN. 2008;105(38):2582-2587
[Management of adult patients with community-acquired pneumonia. Evidence-based guidelines from the Swedish Infectious Diseases Association].
Strålin K; Goscinski G; Hedlund J; Lidman C; Spindler C; Ortqvist A; Holmberg H
Article: EUROPEAN RESPIRATORY JOURNAL. 2007;30(3):414-422
Influenza vaccination and mortality:: prospective cohort study of the elderly in a large geographical area
Oertqvist A; Granath F; Askling J; Hedlund J
Article: EUROPEAN RESPIRATORY JOURNAL. 2004;23(3):363-368
Additive preventive effect of influenza and pneumococcal vaccines in elderly persons
Christenson B; Hedlund J; Lundbergh P; Örtqvist Å
Article: VACCINE. 2003;22(1):96-103
Revaccination with the 23-valent pneumococcal polysaccharide vaccine in middle-aged and elderly persons previously treated for pneumonia
Törling J; Hedlund J; Konradsen HB; Örtqvist Å
Article: VACCINE. 2003;21(25-26):3906-3911
Effects of a large-scale intervention with influenza and 23-valent pneumococcal vaccines in elderly people:: a 1-year follow-up
Hedlund J; Christenson B; Lundbergh P; Örtqvist Å
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2003;35(8):452-458
Capsular types and antibiotic susceptibility of invasive Streptococcus pneumoniae among children in Sweden
Hedlund J; Sörberg M; Normark BH; Kronvall G
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2002;34(12):887-892
Management of patients with community-acquired pneumonia treated in hospital in Sweden
Hedlund J; Örtqvist Å
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2001;33(11):848-850
Changes in serotype distribution may hamper efficacy of pneumococcal conjugate vaccines in children
Normark BH; Örtqvist Å; Kalin M; Olsson-Liljequist B; Hedlund J; Svenson SB; Källenius G
Article: VACCINE. 2001;20(1-2):164-169
Negligible adjuvant effect for antibody responses and frequent adverse events associated with IL-12 treatment in humans vaccinated with pneumococcal polysaccharide
Hedlund J; Langer B; Konradsen HB; Örtqvist Å
Article: THE LANCET. 2001;357(9261):1008-1011
Effects of a large-scale intervention with influenza and 23-valent pneumococcal vaccines in adults aged 65 years or older:: a prospective study
Christenson B; Lundbergh P; Hedlund J; Örtqvist Å
Article: INFECTION. 2000;28(2):68-73
Procalcitonin and C-reactive protein levels in community-acquired pneumonia: Correlation with etiology and prognosis
Hedlund J; Hansson LO
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2000;32(3):281-286
Recurrence of pneumonia in relation to the antibody response after pneumococcal vaccination in middle-aged and elderly adults
Hedlund J; Örtqvist Å; Konradsen HB; Kalin M
Article: THE LANCET. 1998;351(9100):399-403
Randomised trial of 23-valent pneumococcal capsular polysaccharide vaccine in prevention of pneumonia in middle-aged and elderly people
Örtqvist Å; Hedlund J; Burman L; Elbel N; Höfer M; Leinonen M; Lindblad I; Sundelöf B; Kalin M
Article: LAKARTIDNINGEN. 1997;94(51-52):4914-4918
[A handling program for resistant pneumococci. Physicians sometimes neglect mandatory notification].
Hedlund J; Olsson-Liljequist B
Article: SCANDINAVIAN JOURNAL OF CLINICAL AND LABORATORY INVESTIGATION. 1997;57(2):111-118
Sequential changes of inflammatory and nutritional markers in patients with community-acquired pneumonia.
Hansson LO; Hedlund JU; Ortqvist AB
Article: LAKARTIDNINGEN. 1997;94(11):963-964
[X-ray check up after pneumonia. "A healthy approach" helps in new diagnosis].
Ortqvist A; Hedlund J
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 1997;29(4):387-392
Recurrence of pneumonia in middle-aged and elderly adults after hospital-treated pneumonia: Aetiology and predisposing conditions
Hedlund J; Kalin M; Ortqvist A
Article: EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY AND INFECTIOUS DISEASES. 1996;15(8):671-675
Activity of trovafloxacin against blood isolates of Streptococcus pneumoniae in Sweden.
Liljequist BO; Hoffman BM; Hedlund J
Article: CLINICAL INFECTIOUS DISEASES. 1995;21(4):948-953
INCIDENCE, CAPSULAR TYPES, AND ANTIBIOTIC SUSCEPTIBILITY OF INVASIVE STREPTOCOCCUS-PNEUMONIAE IN SWEDEN
HEDLUND J; SVENSON SB; KALIN M; HENRICHSEN J; OLSSONLILJEQUIST B; MOLLERBERG G; KALLENIUS G
Article: ARCHIVES OF INTERNAL MEDICINE (CHICAGO, ILL. : 1908). 1995;155(13):1438-1442
Hypoalbuminemia in hospitalized patients with community-acquired pneumonia.
Hedlund JU; Hansson LO; Ortqvist AB
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 1995;27(1):32-37
SHORT-TERM AND LONG-TERM PROGNOSIS FOR MIDDLE-AGED AND ELDERLY PATIENTS HOSPITALIZED WITH COMMUNITY-ACQUIRED PNEUMONIA - IMPACT OF NUTRITIONAL AND INFLAMMATORY FACTORS
HEDLUND J; HANSSON LO; ORTQVIST A
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 1995;27(5):457-462
DIAGNOSTIC AND PROGNOSTIC VALUE OF INTERLEUKIN-6 AND C-REACTIVE PROTEIN IN COMMUNITY-ACQUIRED PNEUMONIA
ORTQVIST A; HEDLUND J; WRETLIND B; CARLSTROM A; KALIN M
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All other publications

Review: INFECTIOUS DISEASES. 2018;50(4):247-272
Management of community-acquired pneumonia in immunocompetent adults: updated Swedish guidelines 2017
Athlin S; Lidman C; Lundqvist A; Naucler P; Nilsson AC; Spindler C; Stralin K; Hedlund J
Review: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2012;44(12):885-902
Swedish guidelines on the management of community-acquired pneumonia in immunocompetent adults-Swedish Society of Infectious Diseases 2012
Spindler C; Stralin K; Eriksson L; Hjerdt-Goscinski G; Holmberg H; Lidman C; Nilsson A; Ortqvist A; Hedlund J
Published conference paper: DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE. 2008;60(3):255-261
Quantitative detection of Streptococcus pneumoniae from sputum samples with real-time quantitative polymerase chain reaction for etiologic diagnosis of community-acquired pneumonia
Johansson N; Kalin M; Giske CG; Hedlund J
Published conference paper: VACCINE. 2007;25(13):2445-2450
Non-response to specific serotypes likely cause for failure to 23-valent pneumococcal polysaccharide vaccine in the elderly
Ortqvist A; Henckaerts I; Hedlund J; Poolman J
Review: SEMINARS IN RESPIRATORY AND CRITICAL CARE MEDICINE. 2005;26(6):563-574
Streptococcus pneumoniae:: Epidemiology, risk factors, and clinical features
Örtqvist Å; Hedlund J; Kalin M
Review: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2005;37(11-12):791-805
Swedish guidelines for the management of community-acquired pneumonia in immunocompetent adults
Hedlund J; Strålin K; Örtqvist Å; Holmberg H
Published conference paper: JOURNAL OF INFECTIOUS DISEASES. 2001;184(7):861-869
Dynamics of penicillin-susceptible clones in invasive pneumococcal disease
Normark BH; Kalin M; Örtqvist Å; Åkerlund T; Liljequist BO; Hedlund J; Svenson SB; Zhou J; Spratt BG; Normark S; Källenius G
Review: LAKARTIDNINGEN. 1999;96(11):1305-1308
[The elderly should be vaccinated against pneumococci].
Ortqvist A; Hedlund J; Kalin M
Letter: THE LANCET. 1998;351(9120):1962
Effectiveness of pneumococcal vaccine
Ortqvist A; Hedlund J; Kalin M
Letter: THE LANCET. 1998;351(9111):1284-1285
Effectiveness of pneumococcal vaccine -: Reply
Örtqvist Å; Hedlund J; Kalin M
Letter: THE LANCET. 1997;349(9069):1910
Pneumococcal bacteraemia in Sweden
Kallenius G; Hedlund J; Svenson SB; Kalin M; Henrichsen J
Editorial comment: THE LANCET. 1997;349(9049):371-372
Should pneumococcal infections continue to be classified as a single disease?
Hedlund J
Review: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES, SUPPLEMENT. 1995;97:1-60
Community-acquired pneumonia requiring hospitalisation. Factors of importance for the short-and long term prognosis.
Hedlund J

Employments

Affiliated to Teaching/Tutoring, Department of Medicine, Karolinska Institutet, 2023-2026

Degrees and Education

Docent, Karolinska Institutet, 2000

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