Anders Ternhag

About me
Publications
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Public outreach and news

About me

I am a consultant and associate professor in infectious diseases working at Karolinska University Hospital and the Public Health Agency of Sweden.

Research

I am interested in healthcare-associated infections, antibiotic use, ESBL-producing bacteria, and improving access to new and old antibiotics. I am locally responsible for the POS-cUTI clinical observational study organized by ECRAID.

Articles

Article: JAMA NETWORK OPEN. 2023;6(11):e2341936
Nosocomial SARS-CoV-2 Infections and Mortality During Unique COVID-19 EpidemicWaves
Dave N; Sjoholm D; Hedberg P; Ternhag A; Granath F; Verberk JDM; Johansson AF; van der Werff SD; Naucler P
Article: ECLINICALMEDICINE. 2023;63:102184
Oral streptococcal infective endocarditis among individuals at high risk following dental treatment: a nested case-crossover and case-control study
Vahasarja N; Lund B; Ternhag A; Gotrick B; Olaison L; Hultin M; Weiner CK; Naimi-Akbar A
Article: INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES. 2022;124:181-186
The effect of absent or deferred antibiotic treatment on complications of common infections in primary care
Dahlen E; Collin J; Hellman J; Norman C; Naucler P; Ternhag A
Article: APPLIED HEALTH ECONOMICS AND HEALTH POLICY. 2022;20(6):835-843
Cost-Effectiveness Analysis of Temocillin Treatment in Patients with Febrile UTI Accounting for the Emergence of Antibiotic Resistance
Larsson S; Edlund C; Naucler P; Svensson M; Ternhag A
Article: CLINICAL INFECTIOUS DISEASES. 2022;75(7):1171-1178
Infective Endocarditis Among High-risk Individuals Before and After the Cessation of Antibiotic Prophylaxis in Dentistry: A National Cohort Study
Vahasarja N; Lund B; Ternhag A; Gotrick B; Olaison L; Hultin M; Warnqvist A; Weiner CK; Naimi-Akbar A
Article: EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY & INFECTIOUS DISEASES. 2022;41(7):1093-1098
Evaluation of a pneumonia multiplex PCR panel for detection of bacterial respiratory tract pathogens from serial specimens collected from hospitalized COVID-19 patients
Tellapragada C; Ydsten KA; Ternhag A; Giske CG
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 PUBLIC HEALTH. 2022;22(1):527
Production loss and sick leave caused by antibiotic resistance: a register-based cohort study
Larsson S; Svensson M; Ternhag A
Article: LANCET INFECTIOUS DISEASES. 2022;22(3):390-400
The clinical and microbiological efficacy of temocillin versus cefotaxime in adults with febrile urinary tract infection, and its effects on the intestinal microbiota: a randomised multicentre clinical trial in Sweden
Edlund C; Ternhag A; Stahlgren GS; Edquist P; Balkhed AO; Athlin S; Mansson E; Tempe M; Bergstrom J; Giske CG; Hanberger H
Article: BMC PUBLIC HEALTH. 2022;22(1):252
Reduced dispensing of prescribed antibiotics during the Covid-19 pandemic has not increased severe complications from common infections
Norman C; Svensson M; Schmidt I; Bergfeldt VS; Obeid R; Ternhag A; Struwe JL
Article: THORAX. 2022;77(2):154-163
Clinical phenotypes and outcomes of SARS-CoV-2, influenza, RSV and seven other respiratory viruses: a retrospective study using complete hospital data
Hedberg P; Karlsson Valik J; van der Werff S; Tanushi H; Requena Mendez A; Granath F; Bell M; Martensson J; Dyrdak R; Hertting O; Farnert A; Ternhag A; 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: ANTIMICROBIAL STEWARDSHIP & HEALTHCARE EPIDEMIOLOGY. 2022;2(1):e43
The accuracy of fully automated algorithms for surveillance of healthcare-onset Clostridioides difficile infections in hospitalized patients
van der Werff SD; Fritzing M; Tanushi H; Henriksson A; Dalianis H; Ternhag A; Faernert A; 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 HOSPITAL INFECTION. 2021;110:139-147
The accuracy of fully automated algorithms for surveillance of healthcare-associated urinary tract infections in hospitalized patients
van der Werff SD; Thiman E; Tanushi H; Valik JK; Henriksson A; Ul Alam M; Dalianis H; Ternhag A; Naucler P
Article: MSYSTEMS. 2021;6(2):e01302-e01320
Tonsillar Microbiota: a Cross-Sectional Study of Patients with Chronic Tonsillitis or Tonsillar Hypertrophy
Wu S; Hammarstedt-Nordenvall L; Jangard M; Cheng L; Radu SA; Angelidou P; Zha Y; Hamsten M; Engstrand L; Du J; Ternhag A
Article: INFECTIOUS DISEASES. 2020;52(6):419-422
Fatal encephalitis associated with coronavirus OC43 in an immunocompromised child
Nilsson A; Edner N; Albert J; Ternhag A
Article: JOURNAL OF ORAL MICROBIOLOGY. 2020;12(1):1768342
Incidence of infective endocarditis caused by viridans group streptococci in Sweden - effect of cessation of antibiotic prophylaxis in dentistry for risk individuals
Vahasarja N; Lund B; Ternhag A; Gotrick B; Olaison L; Hultin M; Weiner CK; Naimi-Akbar A
Article: EUROSURVEILLANCE. 2020;25(2):39-51
Mycoplasma pneumoniae infections, 11 countries in Europe and Israel, 2011 to 2016
Beeton ML; Zhang X-S; Uldum SA; Bebear C; Dumke R; Gullsby K; Ieven M; Loens K; Nir-Paz R; Pereyre S; Spiller OB; Chalker VJ; Bossuyt N; Lagrou K; Mitis G; Koliou M; Havlickova M; Kyncl J; Emborg H-D; Voldstedlund M; MacKenzie CR; Maltezou HC; Georgakopoulou T; Petridou E; Banou K; Balla E; Connell J; Yandle Z; Moran J; Burns K; Michael-Gayego A; Moses AE; Fenech TM; Anestad G; Blystad H; Vestrheim DF; Froes F; Kese D; Socan M; Cano Portero R; Santos Sanz S; Suarez Rodriguez B; Ternhag A; Giske C; Wisell KT; Marques DP; Reynolds A; McMenamin J
Article: CLINICAL MICROBIOLOGY AND INFECTION. 2019;25(11):1408-1414
Risk factors for community-onset bloodstream infection with extended-spectrum β-lactamase-producing Enterobacteriaceae: national population-based case-control study
Isendahl J; Giske CG; Wisell KT; Ternhag A; Naucler P
Article: EUROPEAN JOURNAL OF PUBLIC HEALTH. 2019;29(3):392-396
A microsimulation model projecting the health care costs for resistance to antibacterial drugs in Sweden
Larsson S; Prioux M; Fasth T; Ternhag A; Struwe J; Dohnhammar U; Brouwers L
Article: CLINICAL INFECTIOUS DISEASES. 2019;68(4):641-649
Temporal Dynamics and Risk Factors for Bloodstream Infection With Extended-spectrum β-Lactamase-producing Bacteria in Previously-colonized Individuals: National Population-based Cohort Study
Isendahl J; Giske CG; Hammar U; Sparen P; Wisell KT; Ternhag A; Naucler P
Article: LAKARTIDNINGEN. 2018;115:EWPI
Aktivt uppsökande infektionskonsult bör införas på sjukhus - Automatiserad riskbedömning ger möjlighet till prevention – också för övervakning av vårdrelaterade infektioner.
Ternhag A; Nauclér P
Article: BMJ OPEN. 2017;7(11):e016221
Antibiotic use and bacterial complications following upper respiratory tract infections: a population-based study
Cars T; Eriksson I; Granath A; Wettermark B; Hellman J; Norman C; Ternhag A
Article: INFECTIOUS DISEASES. 2017;49(8):588-593
Human papillomavirus prevalence in mouthwashes of patients undergoing tonsillectomy shows dominance of HPV69, without the corresponding finding in the tonsils
Grun N; Mbuya W; Ternhag A; Ramqvist T; Ahlberg A; Jangard M; Dalianis T; Hammarstedt-Nordenvall L
Article: CLINICAL MICROBIOLOGY AND INFECTION. 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
Journal article: EUROPEAN JOURNAL OF PUBLIC HEALTH. 2016;26(suppl_1):ckw165.046
A microsimulation model forecasting the health care costs associated with increasing MRSA infections
Prioux M; Brouwers L; Dohnhammar U; Fasth T; Larsson S; Struwe J; Ternhag A
Article: ACTA PAEDIATRICA. 2015;104(10):1035-1038
Antibiotic consumption among a Swedish cohort of children born in 2006
Hellman J; Grape M; Ternhag A
Article: VASCULAR AND ENDOVASCULAR SURGERY. 2015;49(3-4):79-83
The Impact of Stent Graft Material on the Inflammatory Response After EVAR
Sartipy F; Lindstroem D; Gillgren P; Ternhag A
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2014;46(12):888-896
Antibiotic consumption in relation to socio-demographic factors, co-morbidity, and accessibility of primary health care
Ternhag A; Grunewald M; Naucler P; Wisell KT
Article: ANNALS OF VASCULAR SURGERY. 2014;28(4):866-873
The Role of Procalcitonin in Postimplantation Syndrome after EVAR: A Pilot Study
Sartipy F; Lindstrom D; Gillgren P; Ternhag A
Article: JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE. 2014;2(1):39-42
A pilot study of risk adjustment for benchmarking antibiotic use between hospitals in Sweden
Norberg S; Struwe J; Grunewald M; Ternhag A
Article: LAKARTIDNINGEN. 2014;111(7):268-269
[Aminoglycosides are effective--but oto- and nephrotoxic. Knowledge base from the reference group for antibiotic issues on benefit-risk with aminoglycosides].
Ternhag A; Giske CG; Hanberger H
Journal article: NEW ENGLAND JOURNAL OF MEDICINE. 2013;369(12):1175-1176
More on US Outpatient Antibiotic Prescribing, 2010 REPLY
Hicks LA; Taylor THJ; Hunkler RJ
Article: APMIS. 2013;121(1):72-78
The relative importance of Staphylococcus saprophyticus as a urinary tract pathogen: distribution of bacteria among urinary samples analysed during 1 year at a major Swedish laboratory
Eriksson A; Giske CG; Ternhag A
Article: PLOS ONE. 2013;8(7):e67519
A Nationwide Cohort Study of Mortality Risk and Long-Term Prognosis in Infective Endocarditis in Sweden
Ternhag A; Cederstrom A; Torner A; Westling K
Article: EUROSURVEILLANCE. 2012;17(6):20082-13
Antibiotic prescriptions and laboratory-confirmed cases of Mycoplasma pneumoniae during the epidemic in Sweden in 2011
Linde A; Ternhag A; Torner A; Claesson BE
Article: LAKARTIDNINGEN. 2012;109(3):108-109
[National recommendations for the treatment of pharyngotonsillitis are valid].
Cars O; Mölstad S; Norman C; Ternhag A; André M; Erntell M
Article: EMERGING INFECTIOUS DISEASES. 2008;14(1):143-148
Short- and long-term effects of bacterial gastrointestinal infections
Ternhag A; Torner A; Svensson A; Ekdahl K; Giesecke J
Article: EMERGING INFECTIOUS DISEASES. 2006;12(2):337-339
Salmonella-associated deaths, Sweden, 1997-2003
Ternhag A; Törner A; Ekdahl K; Giesecke J
Article: BMC INFECTIOUS DISEASES. 2005;5:70
Mortality following Campylobacter infection:: a registry-based linkage study -: art. no. 70
Ternhag A; Törner A; Svensson Å; Giesecke J; Ekdahl K
Article: EUROSURVEILLANCE. 2004;9(7):19-22
Basic Surveillance Network, a European database for surveillance data on infectious diseases.
Ternhag A; Tegnell A; Lesko B; Skaerlund K; Penttinen P
Article: EUROSURVEILLANCE. 2004;9(7):1-2
Basic Surveillance Network, a European database for surveillance data on infectious diseases.
Ternhag A; Tegnell A; Lesko B; Skaerlund K; Penttinen P
Article: LAKARTIDNINGEN. 2004;101(8):686-687
[Good guideline compliance among patients and health services when it comes to suspected SARS infection].
Ternhag A; Janzon R; Ekdahl K; Giesecke J
Article: LAKARTIDNINGEN. 2004;101(8):683-685
[Avian influenza--next global infection threat from Asia].
Ekdahl K; Penttinen P; Ternhag A; Linde A; Giesecke J
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All other publications

Letter: JAMA INTERNAL MEDICINE. 2023;183(10):1178
Immortal Time Bias Possibly Affecting Fludrocortisone-Hydrocortisone Findings
Valik JK; Ternhag A; Naucler P
Conference publication: INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY. 2020;41:S39
HAI-Proactive: Development of an Automated Surveillance System for Healthcare-Associated Infections in Sweden
Naucler P; van der Werff SD; Valik J; Ward L; Ternhag A; Tanushi H; Mougkou A; Sparrelid E; Farnert A; Mogensen M; Henriksson A; Dalianis H; Pickering B; Herasevich V; Johansson A; Thiman E
Review: BMJ QUALITY & SAFETY. 2020;29(9):735-745
Validation of automated sepsis surveillance based on the Sepsis-3 clinical criteria against physician record review in a general hospital population: observational study using electronic health records data
Valik JK; Ward L; Tanushi H; Mullersdorf K; Ternhag A; Aufwerber E; Farnert A; Johansson AF; Mogensen ML; Pickering B; Dalianis H; Henriksson A; Herasevich V; Naucler P
Letter: JOURNAL OF DENTAL RESEARCH. 2020;99(7):863
Letter to the Editor: "Risk of Adverse Reactions to Oral Antibiotics Prescribed by Dentists"
Smith AJ; Palmer NOA; Seaton RA; Ternhag A
Review: UPSALA JOURNAL OF MEDICAL SCIENCES. 2014;119(2):154-161
Antibiotic consumption and antibiotic stewardship in Swedish hospitals
Hanberger H; Skoog G; Ternhag A; Giske CG
Letter: NEW ENGLAND JOURNAL OF MEDICINE. 2013;369(12):1175
More on US Outpatient Antibiotic Prescribing, 2010
Ternhag A; Hellman J
Letter: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2013;45(8):655-656
Rational use of aminoglycosides - author response
Hanberger H; Fredriksson M; Ternhag A; Giske CG
Review: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2013;45(3):161-175
Rational use of aminoglycosides-Review and recommendations by the Swedish Reference Group for Antibiotics (SRGA)
Hanberger H; Edlund C; Furebring M; Giske CG; Melhus A; Nilsson LE; Petersson J; Sjolin J; Ternhag A; Werner M; Eliasson E
Review: LAKARTIDNINGEN. 2010;107(15):985-988
[Antibiotics or not--procalcitonin can guide therapeutic choices. At least at the emergency department for adults with lower respiratory tract infection].
Ternhag A; Cars O; Norman C; Struwe J
Letter: BMJ-BRITISH MEDICAL JOURNAL. 2009;338:b2064
Larval therapy for leg ulcers Compression may be key
Ternhag A
Thesis / dissertation: 2008
Short and long term effects of bacterial gastrointestinal infection
Ternhag, Anders
Editorial comment: CLINICAL INFECTIOUS DISEASES. 2007;44(5):696-700
A meta-analysis on the effects of antibiotic treatment on duration of symptoms caused by infection with Campylobacter species
Ternhag A; Asikainen T; Giesecke J; Ekdahl K
Review: LAKARTIDNINGEN. 2005;102(14):1046-1047
[Nipah virus--another product from the Asian "virus factory"].
Ternhag A; Penttinen P
Editorial comment: EUROPEAN JOURNAL OF EPIDEMIOLOGY. 2005;20(8):653-655
Size matters - patient organisations exaggerate prevalence numbers
Ternhag A; Asikainen T; Giesecke J

Employments

Affiliated to Research, Department of Medicine, Karolinska Institutet, 2023-2025

Degrees and Education

Associate Professor, Infectious Disease, MedS, Karolinska Institute, 2018
Doctor Of Philosophy, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 2008
University Medical Degree, Karolinska Institutet, 1999

About me

Research

Articles

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