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Lyme neuroborreliosis epidemiology in Sweden 2010 to 2014: clinical microbiology laboratories are a better data source than the hospital discharge diagnosis register.

Dahl V, Wisell KT, Giske CG, Tegnell A, Wallensten A.

Euro Surveill. 2019 May;24(20). doi: 10.2807/1560-7917.ES.2019.24.20.1800453.


Socioeconomic disparities associated with 29 common infectious diseases in Sweden, 2005-14: an individually matched case-control study.

Pini A, Stenbeck M, Galanis I, Kallberg H, Danis K, Tegnell A, Wallensten A.

Lancet Infect Dis. 2019 Feb;19(2):165-176. doi: 10.1016/S1473-3099(18)30485-7. Epub 2018 Dec 14.


Wild and domestic bird faeces likely source of psittacosis transmission-A case-control study in Sweden, 2014-2016.

Chereau F, Rehn M, Pini A, Kühlmann-Berenzon S, Ydring E, Ringberg H, Runehagen A, Ockborn G, Dotevall L, Wallensten A.

Zoonoses Public Health. 2018 Nov;65(7):790-797. doi: 10.1111/zph.12492. Epub 2018 Jul 8.


Self-reported infections during international travel and notifiable infections among returning international travellers, Sweden, 2009-2013.

Dahl V, Wallensten A.

PLoS One. 2017 Jul 28;12(7):e0181625. doi: 10.1371/journal.pone.0181625. eCollection 2017.


A nationwide outbreak of listeriosis associated with cold-cuts, Sweden 2013-2014.

Dahl V, Sundqvist L, Hedenström I, Löfdahl M, Alm E, Ringberg H, Lindblad M, Wallensten A, Thisted Lambertz S, Jernberg C.

Infect Ecol Epidemiol. 2017 Jun 13;7(1):1324232. doi: 10.1080/20008686.2017.1324232. eCollection 2017.


Early outbreak detection by linking health advice line calls to water distribution areas retrospectively demonstrated in a large waterborne outbreak of cryptosporidiosis in Sweden.

Bjelkmar P, Hansen A, Schönning C, Bergström J, Löfdahl M, Lebbad M, Wallensten A, Allestam G, Stenmark S, Lindh J.

BMC Public Health. 2017 Apr 18;17(1):328. doi: 10.1186/s12889-017-4233-8.


Correction: Communicable Diseases Prioritized According to Their Public Health Relevance, Sweden, 2013.

Dahl V, Tegnell A, Wallensten A.

PLoS One. 2017 Mar 16;12(3):e0174491. doi: 10.1371/journal.pone.0174491. eCollection 2017.


High added value of a population-based participatory surveillance system for community acute gastrointestinal, respiratory and influenza-like illnesses in Sweden, 2013-2014 using the web.

Pini A, Merk H, Carnahan A, Galanis I, VAN Straten E, Danis K, Edelstein M, Wallensten A.

Epidemiol Infect. 2017 Apr;145(6):1193-1202. doi: 10.1017/S0950268816003290. Epub 2017 Jan 31.


Highly pathogenic avian influenza A(H5N8) outbreaks: protection and management of exposed people in Europe, 2014/15 and 2016.

Adlhoch C, Brown IH, Angelova SG, Bálint Á, Bouwstra R, Buda S, Castrucci MR, Dabrera G, Dán Á, Grund C, Harder T, van der Hoek W, Krisztalovics K, Parry-Ford F, Popescu R, Wallensten A, Zdravkova A, Zohari S, Tsolova S, Penttinen P.

Euro Surveill. 2016 Dec 8;21(49). pii: 30419. doi: 10.2807/1560-7917.ES.2016.21.49.30419.


Outbreak of Neisseria meningitidis capsular group W among scouts returning from the World Scout Jamboree, Japan, 2015.

Smith-Palmer A, Oates K, Webster D, Taylor S, Scott KJ, Smith G, Parcell B, Lindstrand A, Wallensten A, Fredlund H, Widerström M, McMenamin J; IMT and investigation team in Sweden.

Euro Surveill. 2016 Nov 10;21(45). pii: 30392. doi: 10.2807/1560-7917.ES.2016.21.45.30392.


Epidemiology of Campylobacter jejuni infections in Sweden, November 2011-October 2012: is the severity of infection associated with C. jejuni sequence type?

Harvala H, Rosendal T, Lahti E, Engvall EO, Brytting M, Wallensten A, Lindberg A.

Infect Ecol Epidemiol. 2016 Apr 7;6:31079. doi: 10.3402/iee.v6.31079. eCollection 2016.


Highest Vaccine Uptake after School-Based Delivery - A County-Level Evaluation of the Implementation Strategies for HPV Catch-Up Vaccination in Sweden.

Rehn M, Uhnoo I, Kühlmann-Berenzon S, Wallensten A, Sparén P, Netterlid E.

PLoS One. 2016 Mar 14;11(3):e0149857. doi: 10.1371/journal.pone.0149857. eCollection 2016.


Quantifying the incidence and cost of acute gastrointestinal illness in Sweden, 2013-2014.

Edelstein M, Merk H, Deogan C, Carnahan A, Wallensten A.

Epidemiol Infect. 2016 Oct;144(13):2831-9. doi: 10.1017/S0950268816000467. Epub 2016 Mar 11.


Increased number of Campylobacter bacteraemia cases in Sweden, 2014.

Harvala H, Ydring E, Brytting M, Söderblom T, Mäkitalo B, Wallensten A, Wisell KT, Jernberg C.

Clin Microbiol Infect. 2016 Apr;22(4):391-393. doi: 10.1016/j.cmi.2015.11.013. Epub 2015 Dec 11. No abstract available.


Communicable Diseases Prioritized According to Their Public Health Relevance, Sweden, 2013.

Dahl V, Tegnell A, Wallensten A.

PLoS One. 2015 Sep 23;10(9):e0136353. doi: 10.1371/journal.pone.0136353. eCollection 2015. Erratum in: PLoS One. 2017 Mar 16;12 (3):e0174491.


Role of Sequencing the Measles Virus Hemagglutinin Gene and Hypervariable Region in the Measles Outbreak Investigations in Sweden During 2013-2014.

Harvala H, Wiman Å, Wallensten A, Zakikhany K, Englund H, Brytting M.

J Infect Dis. 2016 Feb 15;213(4):592-9. doi: 10.1093/infdis/jiv434. Epub 2015 Sep 7.


Risk factors and potential preventive measures for nephropatia epidemica in Sweden 2011-2012: a case-control study.

Gherasim A, Hjertqvist M, Lundkvist Å, Kühlmann-Berenzon S, Carlson JV, Stenmark S, Widerström M, Österlund A, Boman H, Ahlm C, Wallensten A.

Infect Ecol Epidemiol. 2015 Jun 30;5:27698. doi: 10.3402/iee.v5.27698. eCollection 2015.


Post-infection symptoms following two large waterborne outbreaks of Cryptosporidium hominis in Northern Sweden, 2010-2011.

Rehn M, Wallensten A, Widerström M, Lilja M, Grunewald M, Stenmark S, Kark M, Lindh J.

BMC Public Health. 2015 Jun 4;15:529. doi: 10.1186/s12889-015-1871-6.


Syndromic surveillance of influenza activity in Sweden: an evaluation of three tools.

Ma T, Englund H, Bjelkmar P, Wallensten A, Hulth A.

Epidemiol Infect. 2015 Aug;143(11):2390-8. doi: 10.1017/S0950268814003240. Epub 2014 Dec 4.


Multiple human-to-human transmission from a severe case of psittacosis, Sweden, January-February 2013.

Wallensten A, Fredlund H, Runehagen A.

Euro Surveill. 2014 Oct 23;19(42). pii: 20937.


Is case-chaos methodology an appropriate alternative to conventional case-control studies for investigating outbreaks?

Edelstein M, Wallensten A, Kühlmann-Berenzon S.

Am J Epidemiol. 2014 Aug 15;180(4):406-11. doi: 10.1093/aje/kwu123. Epub 2014 Jul 2.


Detecting the norovirus season in Sweden using search engine data--meeting the needs of hospital infection control teams.

Edelstein M, Wallensten A, Zetterqvist I, Hulth A.

PLoS One. 2014 Jun 23;9(6):e100309. doi: 10.1371/journal.pone.0100309. eCollection 2014.


Barriers to Trace-back in a Salad-associated EHEC Outbreak, Sweden, June 2013.

Edelstein M, Sundborger C, Hergens MP, Ivarsson S, Dryselius R, Insulander M, Jernberg C, Hutin Y, Wallensten A.

PLoS Curr. 2014 Jun 6;6. pii: ecurrents.outbreaks.80bbab3af3232be0372ea0e904dcd1fe. doi: 10.1371/currents.outbreaks.80bbab3af3232be0372ea0e904dcd1fe.


Large outbreak of Cryptosporidium hominis infection transmitted through the public water supply, Sweden.

Widerström M, Schönning C, Lilja M, Lebbad M, Ljung T, Allestam G, Ferm M, Björkholm B, Hansen A, Hiltula J, Långmark J, Löfdahl M, Omberg M, Reuterwall C, Samuelsson E, Widgren K, Wallensten A, Lindh J.

Emerg Infect Dis. 2014 Apr;20(4):581-9. doi: 10.3201/eid2004.121415.


Outbreaks of methicillin-resistant Staphylococcus aureus among staff and dogs in Swedish small animal hospitals.

Grönlund Andersson U, Wallensten A, Hæggman S, Greko C, Hedin G, Hökeberg I, Lindström F, Olsson-Liljequist B, Smedjegård J, Söderblom T, Windahl U, Struwe J.

Scand J Infect Dis. 2014 Apr;46(4):310-4. doi: 10.3109/00365548.2013.866267. Epub 2014 Jan 23.


Contact tracing for influenza A(H1N1)pdm09 virus-infected passenger on international flight.

Shankar AG, Janmohamed K, Olowokure B, Smith GE, Hogan AH, De Souza V, Wallensten A, Oliver I, Blatchford O, Cleary P, Ibbotson S.

Emerg Infect Dis. 2014 Jan;20(1):118-20. doi: 10.3201/eid2001.120101.


International flight-related transmission of pandemic influenza A(H1N1)pdm09: an historical cohort study of the first identified cases in the United Kingdom.

Young N, Pebody R, Smith G, Olowokure B, Shankar G, Hoschler K, Galiano M, Green H, Wallensten A, Hogan A, Oliver I.

Influenza Other Respir Viruses. 2014 Jan;8(1):66-73. doi: 10.1111/irv.12181. Epub 2013 Nov 7.


Unusual increase of psittacosis in southern Sweden linked to wild bird exposure, January to April 2013.

Rehn M, Ringberg H, Runehagen A, Herrmann B, Olsen B, Petersson AC, Hjertqvist M, Kühlmann-Berenzon S, Wallensten A.

Euro Surveill. 2013 May 9;18(19):20478.


Two geographically separated food-borne outbreaks in Sweden linked by an unusual Cryptosporidium parvum subtype, October 2010.

Gherasim A, Lebbad M, Insulander M, Decraene V, Kling A, Hjertqvist M, Wallensten A.

Euro Surveill. 2012 Nov 15;17(46). pii: 20318.


Investigations and actions taken during 2011 due to the first finding of Echinococcus multilocularis in Sweden.

Wahlström H, Lindberg A, Lindh J, Wallensten A, Lindqvist R, Plym-Forshell L, Osterman Lind E, Ågren EO, Widgren S, Carlsson U, Christensson D, Cedersmyg M, Lindström E, Olsson GE, Hörnfeldt B, Barragan A, Davelid C, Hjertqvist M, Elvander M.

Euro Surveill. 2012 Jul 12;17(28). pii: 20215.


Willingness to pay for compulsory deworming of pets entering Sweden to prevent introduction of Echinoccoccus multilocularis.

Höjgård S, Sundström K, Christensson D, Hallgren G, Hjertqvist M, Wallensten A, Vågsholm I, Wahlström H.

Prev Vet Med. 2012 Sep 1;106(1):9-23. doi: 10.1016/j.prevetmed.2012.02.015. Epub 2012 Mar 15.


Tick-borne encephalitis increasing in Sweden, 2011.

Lundkvist A, Wallensten A, Vene S, Hjertqvist M.

Euro Surveill. 2011 Sep 29;16(39). pii: 19981. No abstract available.


Combining information from surveys of several species to estimate the probability of freedom from Echinococcus multilocularis in Sweden, Finland and mainland Norway.

Wahlström H, Isomursu M, Hallgren G, Christensson D, Cedersmyg M, Wallensten A, Hjertqvist M, Davidson RK, Uhlhorn H, Hopp P.

Acta Vet Scand. 2011 Feb 11;53:9. doi: 10.1186/1751-0147-53-9.


Extended spectrum beta-lactamases detected in Escherichia coli from gulls in Stockholm, Sweden.

Wallensten A, Hernandez J, Ardiles K, González-Acuña D, Drobni M, Olsen B.

Infect Ecol Epidemiol. 2011;1. doi: 10.3402/iee.v1i0.7030. Epub 2011 Aug 31.


Windscreen wiper fluid without added screenwash in motor vehicles: a newly identified risk factor for Legionnaires' disease.

Wallensten A, Oliver I, Ricketts K, Kafatos G, Stuart JM, Joseph C.

Eur J Epidemiol. 2010 Sep;25(9):661-5. doi: 10.1007/s10654-010-9471-3. Epub 2010 Jun 8.


Globally disseminated human pathogenic Escherichia coli of O25b-ST131 clone, harbouring blaCTX-M-15 , found in Glaucous-winged gull at remote Commander Islands, Russia.

Hernandez J, Bonnedahl J, Eliasson I, Wallensten A, Comstedt P, Johansson A, Granholm S, Melhus A, Olsen B, Drobni M.

Environ Microbiol Rep. 2010 Apr;2(2):329-32. doi: 10.1111/j.1758-2229.2010.00142.x. Epub 2010 Feb 23.


Q fever outbreak in Cheltenham, United Kingdom, in 2007 and the use of dispersion modelling to investigate the possibility of airborne spread.

Wallensten A, Moore P, Webster H, Johnson C, van der Burgt G, Pritchard G, Ellis-Iversen J, Oliver I.

Euro Surveill. 2010 Mar 25;15(12). pii: 19521.


No evidence of transmission of H5N1 highly pathogenic avian influenza to humans after unprotected contact with infected wild swans.

Wallensten A, Salter M, Bennett S, Brown I, Hoschler K, Oliver I.

Epidemiol Infect. 2010 Feb;138(2):210-3. doi: 10.1017/S0950268809990811. Epub 2009 Sep 18.


Compliance and side effects of prophylactic oseltamivir treatment in a school in South West England.

Wallensten A, Oliver I, Lewis D, Harrison S.

Euro Surveill. 2009 Jul 30;14(30):19285.


Complex population structure of Lyme borreliosis group spirochete Borrelia garinii in subarctic Eurasia.

Comstedt P, Asokliene L, Eliasson I, Olsen B, Wallensten A, Bunikis J, Bergström S.

PLoS One. 2009 Jun 9;4(6):e5841. doi: 10.1371/journal.pone.0005841.


Effects of influenza A virus infection on migrating mallard ducks.

Latorre-Margalef N, Gunnarsson G, Munster VJ, Fouchier RA, Osterhaus AD, Elmberg J, Olsen B, Wallensten A, Haemig PD, Fransson T, Brudin L, Waldenström J.

Proc Biol Sci. 2009 Mar 22;276(1659):1029-36. doi: 10.1098/rspb.2008.1501.


Antiviral oseltamivir is not removed or degraded in normal sewage water treatment: implications for development of resistance by influenza A virus.

Fick J, Lindberg RH, Tysklind M, Haemig PD, Waldenström J, Wallensten A, Olsen B.

PLoS One. 2007 Oct 3;2(10):e986.


[Avian influenza, the hen, the man and the presumed death].

Wallensten A, Waldenström J, Olsen B.

Lakartidningen. 2007 Aug 8-21;104(32-33):2240-3. Review. Swedish. No abstract available.


Surveillance of influenza A virus in migratory waterfowl in northern Europe.

Wallensten A, Munster VJ, Latorre-Margalef N, Brytting M, Elmberg J, Fouchier RA, Fransson T, Haemig PD, Karlsson M, Lundkvist A, Osterhaus AD, Stervander M, Waldenström J, Björn O.

Emerg Infect Dis. 2007 Mar;13(3):404-11.


Spatial, temporal, and species variation in prevalence of influenza A viruses in wild migratory birds.

Munster VJ, Baas C, Lexmond P, Waldenström J, Wallensten A, Fransson T, Rimmelzwaan GF, Beyer WE, Schutten M, Olsen B, Osterhaus AD, Fouchier RA.

PLoS Pathog. 2007 May 11;3(5):e61.


A real-time PCR assay for the monitoring of influenza A virus in wild birds.

Karlsson M, Wallensten A, Lundkvist A, Olsen B, Brytting M.

J Virol Methods. 2007 Sep;144(1-2):27-31. Epub 2007 May 7.


High prevalence of influenza A virus in ducks caught during spring migration through Sweden.

Wallensten A, Munster VJ, Karlsson M, Lundkvist A, Brytting M, Stervander M, Osterhaus AD, Fouchier RA, Olsen B.

Vaccine. 2006 Nov 10;24(44-46):6734-5. Epub 2006 Jun 6.


Global patterns of influenza a virus in wild birds.

Olsen B, Munster VJ, Wallensten A, Waldenström J, Osterhaus AD, Fouchier RA.

Science. 2006 Apr 21;312(5772):384-8. Review.


Mallards and highly pathogenic avian influenza ancestral viruses, northern Europe.

Munster VJ, Wallensten A, Baas C, Rimmelzwaan GF, Schutten M, Olsen B, Osterhaus AD, Fouchier RA.

Emerg Infect Dis. 2005 Oct;11(10):1545-51.


Multiple gene segment reassortment between Eurasian and American lineages of influenza A virus (H6N2) in Guillemot (Uria aalge).

Wallensten A, Munster VJ, Elmberg J, Osterhaus AD, Fouchier RA, Olsen B.

Arch Virol. 2005 Aug;150(8):1685-92. Epub 2005 May 11.


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