Helena Hervius Askling

About me
Publications
CV
Public outreach and news

About me

I am a Medical Doctor, Senior Consultant and Associate Professor in Infectious Diseases, with expertise in vaccinology. At the
the Centre for Health Crises at KI, I am the expert coordinator in the field of Infectious Diseases and Vaccine Preparedness.
Moreover, I am the course leader and founder of biannual 2-week course "Vaccinology in practice" for medical doctors and nurses. I chair the Regional Vaccine Expert group, as well as the Vaccine Expert Group for Swedish Society for Infectious Diseases Physicians.

Research

- Clinical vaccine trials and register based research
- Vaccine immunogenicity and effect in different subpopulations such as immunosuppressed, pregnant, elderly and obese persons
- Vaccination/implementation/health economics and clinical outcome in relation to vaccination status

Teaching

Course Leader and Founder. Vaccinology in practice for Medical Doctors and nurses. Annual, two week course (3 hp).

Articles

Article: JMIR PUBLIC HEALTH AND SURVEILLANCE. 2024;10:e47241

Perspectives of European Patient Advocacy Groups on Volunteer Registries and Vaccine Trials: VACCELERATE Survey Study.

Themistocleous S; Argyropoulos CD; Vogazianos P; Shiamakkides G; Noula E; Nearchou A; Yiallouris A; Filippou C; Stewart FA; Koniordou M; Kopsidas I; Askling HH; Vene S; Gagneux-Brunon A; Prellezo JB; Álvarez-Barco E; Salmanton-García J; Leckler J; Macken AJ; Davis RJ; Azzini AM; Armeftis C; Hellemans M; Di Marzo R; Luis C; Olesen OF; Valdenmaiier O; Jakobsen SF; Nauclér P; Launay O; Mallon P; Ochando J; van Damme P; Tacconelli E; Zaoutis T; Cornely OA; Pana ZD
Article: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2024;57:102676

Predicting the next pandemic: VACCELERATE ranking of the WorldHealth Organization's Blueprint forAction toPreventEpidemics.

Salmanton-García J; Wipfler P; Leckler J; Nauclér P; Mallon PW; Bruijning-Verhagen PCJL; Schmitt H-J; Bethe U; Olesen OF; Stewart FA; Albus K; Cornely OA; VACCELERATE Consortium
Article: VACCINES. 2023;11(12):1784

The Challenges of Vaccine Trial Participation among Underserved and Hard-to-Reach Communities: An Internal Expert Consultation of the VACCELERATE Consortium.

Poulimeneas D; Koniordou M; Kousi D; Merakou C; Kopsidas I; Tsopela GC; Argyropoulos CD; Themistocleous SC; Shiamakkides G; Constantinou M; Alexandrou A; Noula E; Nearchou A; Salmanton-García J; Stewart FA; Heringer S; Albus K; Álvarez-Barco E; Macken A; Di Marzo R; Luis C; Valle-Simón P; Askling HH; Hellemans M; Spivak O; Davis RJ; Azzini AM; Barta I; Součková L; Jancoriene L; Akova M; Mallon PWG; Olesen OF; Frias-Iniesta J; van Damme P; Tóth K; Cohen-Kandli M; Cox RJ; Husa P; Nauclér P; Marques L; Ochando J; Tacconelli E; Zeitlinger M; Cornely OA; Pana ZD; Zaoutis TE; VACCELERATE Consortium
Article: JOURNAL OF INTERNAL MEDICINE. 2023;294(5):640-652

Sociodemographic disparities affect COVID-19 vaccine uptake in non-elderly adults with increased risk of severe COVID-19.

Hedberg P; Sotoodeh A; Askling HH; Nauclér P
Article: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2023;54:102598

Qdenga® - A promising dengue fever vaccine; can it be recommended to non-immune travelers?

Angelin M; Sjölin J; Kahn F; Ljunghill Hedberg A; Rosdahl A; Skorup P; Werner S; Woxenius S; Askling HH
Article: VACCINE. 2023;41(26):3915-3922

VACCELERATE Site Network: Real-time definition of clinical study capacity in Europe.

Salmanton-García J; Wipfler P; Valle-Simón P; Merakou C; Kopsidas I; Bethe U; Steinbach A; Spivak O; Součková L; Mendonça MA; Koniordou M; Hellemans M; Frías-Iniesta J; Davis RJ; Barta I; Azzini AM; Askling HH; Argyropoulos CD; Álvarez-Barco E; Akova M; Bonten MMJ; Cohen-Kandli M; Cox RJ; Flisiak R; Husa P; Jancoriene L; Koscalova A; Launay O; Lundgren J; Mallon P; Marques L; Nauclér P; Ochando J; Pana Z-D; Tacconelli E; Tóth K; Trelle S; van Damme P; Zaoutis TE; Zeitlinger M; Albus K; Stewart FA; Hofstraat SHI; Bruijning-Verhagen P; Cornely OA; VACCELERATE Consortium. Electronic address: trials
Article: JMIR PUBLIC HEALTH AND SURVEILLANCE. 2023;9:e44491

Enhancing Public Health Communication Regarding Vaccine Trials: Design and Development of the Pan-European VACCELERATE Toolkit.

Argyropoulos CD; Leckler J; Salmanton-García J; Constantinou M; Alexandrou A; Themistocleous S; Noula E; Shiamakkides G; Nearchou A; Stewart FA; Albus K; Koniordou M; Kopsidas I; Spivak O; Hellemans M; Hendrickx G; Davis RJ; Azzini AM; Simon PV; Carcas-Sansuan AJ; Askling HH; Vene S; Prellezo JB; Álvarez-Barco E; Macken AJ; Di Marzo R; Luís C; Olesen OF; Frias Iniesta JA; Barta I; Tóth K; Akova M; Bonten MMJ; Cohen-Kandli M; Cox RJ; Součková L; Husa P; Jancoriene L; Launay O; Lundgren J; Mallon P; Armeftis C; Marques L; Naucler P; Ochando J; Tacconelli E; van Damme P; Zaoutis T; Hofstraat S; Bruijning-Verhagen P; Zeitlinger M; Cornely OA; Pana ZD
Article: LAKARTIDNINGEN. 2022;119:22121

Rekommendationer för vaccin mot covid-19 borde förtydligas.

Hervius Askling H; Gisslén M
Journal article: JOURNAL OF SCIENCE COMMUNICATION. 2022;21(05):a05

Vaccination rates in Europe are not associated with online media intensity

Luís C; Di Marzo VR; Kaur M; Argyropoulos C; Devane D; Stewart FA; Antoniou G; Hendrickx G; Hervius Askling H; Hellemans M; Cohen M; Spivak O; Van Damme P; Cox RJ; Vene S; Sibia S; Pana ZD; Olesen O; VACCELERATE Consortium OBO
Article: VACCINE. 2022;40(31):4090-4097

VACCELERATE Volunteer Registry: A European study participant database to facilitate clinical trial enrolment.

Salmanton-García J; Stewart FA; Heringer S; Koniordou M; Álvarez-Barco E; Argyropoulos CD; Themistocleous SC; Valle-Simón P; Spivak O; Součková L; Merakou C; Amélia Mendonça M; Joanna Davis R; Maria Azzini A; Askling HH; Vene S; Van Damme P; Steinbach A; Shiamakkides G; Seidel D; Olesen OF; Noula E; Macken A; Luís C; Leckler J; Launay O; Isitt C; Hellemans M; Frías-Iniesta J; Di Marzo R; Carcas AJ; Boustras G; Borobia AM; Barta I; Albus K; Akova M; Ochando J; Cohen-Kandli M; Jane Cox R; Husa P; Jancoriene L; Mallon P; Marques L; Mellinghoff SC; Nauclér P; Tacconelli E; Tóth K; Zaoutis TE; Zeitlinger M; Cornely OA; Pana Z-D; VACCELERATE consortium
Article: CLINICAL INFECTIOUS DISEASES. 2022;74(7):1199-1207

Relapse of Plasmodium vivax and Plasmodium ovale Malaria With and Without Primaquine Treatment in a Nonendemic Area.

Wångdahl A; Sondén K; Wyss K; Stenström C; Björklund D; Zhang J; Hervius Askling H; Carlander C; Hellgren U; Färnert A
Journal article: OBSTETRIC ANESTHESIA DIGEST. 2022;42(1):28-29

Association of Maternal SARS-CoV-2 Infection in Pregnancy With Neonatal Outcomes

Norman M; Navér L; Söderling J; Ahlberg M; Askling HH; Aronsson B; Byström E; Jonsson J; Sengpiel; Ludvigsson JF; Håkansson S; Stephansson O
Article: BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY. 2022;129(2):282-290

SARS-CoV-2 and pregnancy outcomes under universal and non-universal testing in Sweden: register-based nationwide cohort study.

Stephansson O; Pasternak B; Ahlberg M; Hervius Askling H; Aronsson B; Appelqvist E; Jonsson J; Sengpiel V; Söderling J; Norman M; Ludvigsson JF; Neovius M
Article: JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION. 2021;325(20):2076-2086

Association of Maternal SARS-CoV-2 Infection in Pregnancy With Neonatal Outcomes.

Norman M; Navér L; Söderling J; Ahlberg M; Hervius Askling H; Aronsson B; Byström E; Jonsson J; Sengpiel V; Ludvigsson JF; Håkansson S; Stephansson O
Article: JOURNAL OF IMMUNOLOGY. 2020;204(4):914-922

Magnitude and Functional Profile of the Human CD4+ T Cell Response throughout Primary Immunization with Tick-Borne Encephalitis Virus Vaccine.

Varnaitė R; Blom K; Lampen MH; Vene S; Thunberg S; Lindquist L; Ljunggren H-G; Rombo L; Askling HH; Gredmark-Russ S
Article: CLINICAL INFECTIOUS DISEASES. 2020;70(2):245-251

Tick-borne Encephalitis Vaccine Failures: A 10-year Retrospective Study Supporting the Rationale for Adding an Extra Priming Dose in Individuals Starting at Age 50 Years.

Hansson KE; Rosdahl A; Insulander M; Vene S; Lindquist L; Gredmark-Russ S; Askling HH
Article: LAKARTIDNINGEN. 2019;116:FPDP

[Subsidized TBE vaccination appears cost-effective in a life-time perspective].

Askling H; Shedrawy J; Henriksson M
Article: VACCINE. 2018;36(50):7659-7665

Estimating costs and health outcomes of publicly funded tick-born encephalitis vaccination: A cost-effectiveness analysis.

Shedrawy J; Henriksson M; Hergens M-P; Askling HH
Article: JOURNAL OF TRAVEL MEDICINE. 2018;25(1):tay041

A single booster dose of diphtheria vaccine is effective for travelers regardless of time interval since previous doses.

Stefansson M; Askling HH; Rombo L
Article: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2018;22:18-24

Safety and immunogenicity of an inactivated Vero cell_derived Japanese encephalitis vaccine (IXIARO®, JESPECT®) in a pediatric population in JE non-endemic countries: An uncontrolled, open-label phase 3 study.

Jelinek T; Cromer MA; Cramer JP; Mills DJ; Lessans K; Gherardin AW; Barnett ED; Hagmann SHF; Askling HH; Kiermayr S; Kadlecek V; Eder-Lingelbach S; Taucher C; Dubischar KL
Article: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2018;21:43-50

An extra priming dose of hepatitis A vaccine to adult patients with rheumatoid arthritis and drug induced immunosuppression - A prospective, open-label, multi-center study.

Rosdahl A; Herzog C; Frösner G; Norén T; Rombo L; Askling HH
Article: EUROSURVEILLANCE. 2017;22(22):30543-16

Investigation of a food-borne outbreak of gastroenteritis in a school canteen revealed a variant of sapovirus genogroup V not detected by standard PCR, Sollentuna, Sweden, 2016.

Hergens M-P; Nederby Öhd J; Alm E; Askling HH; Helgesson S; Insulander M; Lagerqvist N; Svenungsson B; Tihane M; Tolfvenstam T; Follin P
Article: VACCINE. 2016;34(5):650-655

Tick-borne encephalitis (TBE) vaccine to medically immunosuppressed patients with rheumatoid arthritis: A prospective, open-label, multi-centre study.

Hertzell KB; Pauksens K; Rombo L; Knight A; Vene S; Askling HH
Article: VACCINE. 2015;33(38):4962-4968

Tick borne encephalitis (TBE)-vaccination coverage and analysis of variables associated with vaccination, Sweden.

Askling HH; Insulander M; Hergens M-P; Leval A
Article: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2014;12(2):134-142

Hepatitis A vaccine for immunosuppressed patients with rheumatoid arthritis: a prospective, open-label, multi-centre study.

Askling HH; Rombo L; van Vollenhoven R; Hallén I; Thörner Å; Nordin M; Herzog C; Kantele A
Article: VACCINE. 2013;32(1):119-123

Cross-protection elicited by primary and booster vaccinations against Japanese encephalitis: a two-year follow-up study.

Erra EO; Askling HH; Yoksan S; Rombo L; Riutta J; Vene S; Lindquist L; Vapalahti O; Kantele A
Article: CLINICAL INFECTIOUS DISEASES. 2012;55(6):825-834

A single dose of vero cell-derived Japanese encephalitis (JE) vaccine (Ixiaro) effectively boosts immunity in travelers primed with mouse brain-derived JE vaccines.

Erra EO; Askling HH; Rombo L; Riutta J; Vene S; Yoksan S; Lindquist L; Pakkanen SH; Huhtamo E; Vapalahti O; Kantele A
Article: EUROSURVEILLANCE. 2012;17(26):16-26

Infectious diseases among travellers and migrants in Europe, EuroTravNet 2010.

Gautret P; Cramer JP; Field V; Caumes E; Jensenius M; Gkrania-Klotsas E; de Vries PJ; Grobusch MP; Lopez-Velez R; Castelli F; Schlagenhauf P; Hervius Askling H; von Sonnenburg F; Lalloo DG; Loutan L; Rapp C; Basto F; Santos O'Connor F; Weld L; Parola P; EuroTravNet Network
Article: VACCINE. 2012;30(3):499-502

Immunogenicity of delayed TBE-vaccine booster.

Askling HH; Vene S; Rombo L; Lindquist L
Article: LAKARTIDNINGEN. 2011;108(29-31):1441-1442

[TBE in an elderly vaccinated couple. Don't forget booster doses to the elderly!].

Askling HH; Rydgård C; Ostlund MR; Vene S
Article: EUROSURVEILLANCE. 2010;15(15):2-4

Dengue type 3 virus infections in European travellers returning from the Comoros and Zanzibar, February-April 2010.

Gautret P; Simon F; Hervius Askling H; Bouchaud O; Leparc-Goffart I; Ninove L; Parola P; EuroTravNet
Article: EMERGING INFECTIOUS DISEASES. 2009;15(11):1805-1808

Serologic analysis of returned travelers with fever, Sweden.

Askling HH; Lesko B; Vene S; Berndtson A; Björkman P; Bläckberg J; Bronner U; Follin P; Hellgren U; Palmerus M; Ekdahl K; Tegnell A; Struwe J
Article: JOURNAL OF TRAVEL MEDICINE. 2009;16(4):233-238

Hepatitis A risk in travelers.

Askling HH; Rombo L; Andersson Y; Martin S; Ekdahl K
Article: MILITARY MEDICINE. 2008;173(12):1194-1198

Well-tolerated chemoprophylaxis uniformly prevented Swedish soldiers from Plasmodium falciparum malaria in Liberia, 2004-2006.

Andersson H; Askling HH; Falck B; Rombo L
Article: EMERGING INFECTIOUS DISEASES. 2005;11(3):436-441

Malaria risk in travelers.

Askling HH; Nilsson J; Tegnell A; Janzon R; Ekdahl K
Article: SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES. 2005;37(10):760-765

Travellers returning to Sweden with falciparum malaria: pre-travel advice, behaviour, chemoprophylaxis and diagnostic delay.

Askling HH; Ekdahl K; Janzon R; Henric Braconier J; Bronner U; Hellgren U; Rombo L; Tegnell A
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All other publications

Editorial comment: NEW MICROBES AND NEW INFECTIONS. 2023;53:101157

Tick-borne co-infections in Europe: Clinical conundrums.

Sandelin LL; Askling HH
Preprint: JMIR PREPRINTS. 2023

Perspectives of European Patient Advocacy Groups on Volunteer Registries and Vaccine Trials: VACCELERATE Survey Study (Preprint)

Themistocleous S; Argyropoulos CD; Vogazianos P; Shiamakkides G; Noula E; Nearchou A; Yiallouris A; Filippou C; Stewart FA; Koniordou M; Kopsidas I; Askling HH; Vene S; Gagneux-Brunon A; Prellezo JB; Álvarez-Barco E; Salmanton-García J; Leckler J; Macken AJ; Davis RJ; Azzini AM; Armeftis C; Hellemans M; Di Marzo R; Luis C; Olesen OF; Valdenmaiier O; Jakobsen SF; Nauclér P; Launay O; Mallon P; Ochando J; van Damme P; Tacconelli E; Zaoutis T; Cornely OA; Pana ZD
Preprint: JMIR PREPRINTS. 2022

Enhancing Public Health Communication Regarding Vaccine Trials: Design and Development of the Pan-European VACCELERATE Toolkit (Preprint)

Argyropoulos CD; Leckler J; Salmanton-García J; Constantinou M; Alexandrou A; Themistocleous S; Noula E; Shiamakkides G; Nearchou A; Stewart FA; Albus K; Koniordou M; Kopsidas I; Spivak O; Hellemans M; Hendrickx G; Davis RJ; Azzini AM; Simon PV; Carcas-Sansuan AJ; Askling HH; Vene S; Prellezo JB; Álvarez-Barco E; Macken AJ; Di Marzo R; Luís C; Olesen OF; Frias Iniesta JA; Barta I; Tóth K; Akova M; Bonten MMJ; Cohen-Kandli M; Cox RJ; Součková L; Husa P; Jancoriene L; Launay O; Lundgren J; Mallon P; Armeftis C; Marques L; Naucler P; Ochando J; Tacconelli E; van Damme P; Zaoutis T; Hofstraat S; Bruijning-Verhagen P; Zeitlinger M; Cornely OA; Pana ZD
Editorial comment: NEW MICROBES AND NEW INFECTIONS. 2022;48:101022

Increasing spread of borreliosis in Europe.

Olafsdottir B; Askling HH
Review: NEW MICROBES AND NEW INFECTIONS. 2022;48:101017

Tick-borne encephalitis in pregnant women: A mini narrative review.

Bjonholm E; Soderholm S; Stephansson O; Askling HH
Review: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2020;37:101876

Immunogenicity and safety of the tick-borne encephalitis vaccination (2009-2019): A systematic review.

Rampa JE; Askling HH; Lang P; Zens KD; Gültekin N; Stanga Z; Schlagenhauf P
Letter: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2019;32:101526

Hepatitis A vaccination in immunocompromised patients - the need for individualized vaccination strategies and correct methodology.

Askling HH; Herzog C
Corrigendum: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2019;27:115

Corrigendum to " An extra priming dose of hepatitis A vaccine to adult patients with rheumatoid arthritis and drug induced immunosuppression - A prospective, open-label, multi-center study" [Trav. Med. Infect. Dis. 21, January-February 2018, 43-50].

Rosdahl A; Herzog C; Frösner G; Norén T; Rombo L; Askling HH
Conference publication: EUROPEAN JOURNAL OF PUBLIC HEALTH. 2016;26:ckw174.226

Tailored communication to hard-to-reach groups-A pilot in a Somali community, Sweden, on vaccination

Godoy-Ramirez K; Jama A; Bystrom E; Karregard S; Hedlin M; Martin H; Askling HH; Kulane A; Lindstrand A
Editorial comment: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2015;13(5):353-354

The importance of influenza diagnosis.

Askling HH
Editorial comment: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2015;13(1):6-7

Pre-travel advice to the most immunocompromised; Trying to guide where evidence is scarce.

Askling HH
Review: TRAVEL MEDICINE AND INFECTIOUS DISEASE. 2014;12(3):219-228

The medically immunocompromised adult traveler and pre-travel counseling: status quo 2014.

Askling HH; Dalm VASH
Editorial comment: CLINICAL INFECTIOUS DISEASES. 2013;56(2):267-270

Cross-protective capacity of Japanese encephalitis (JE) vaccines against circulating heterologous JE virus genotypes.

Erra EO; Askling HH; Yoksan S; Rombo L; Riutta J; Vene S; Lindquist L; Vapalahti O; Kantele A
Review: MALARIA JOURNAL. 2012;11:328

Management of imported malaria in Europe.

Askling HH; Bruneel F; Burchard G; Castelli F; Chiodini PL; Grobusch MP; Lopez-Vélez R; Paul M; Petersen E; Popescu C; Ramharter M; Schlagenhauf P; European Society for Clinical Microbiology and Inf
Review: CURRENT OPINION IN INFECTIOUS DISEASES. 2010;23(5):421-425

Influenza in travellers.

Askling HH; Rombo L
Thesis / dissertation: 2009

Infectious diseases in returning Swedish travellers

Askling, Helena Hervius

Employments

Affiliated to Teaching/Tutoring, Department of Medicine, Karolinska Institutet, 2023-2025

Degrees and Education

Docent, Karolinska Institutet, 2022
Degree Of Doctor Of Philosophy, Department of Medicine, Solna, Karolinska Institutet, 2009

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