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An outbreak of Norovirus infections associated with recreational lake water in Western Finland, 2014.
Published in:
2018
By:
- Polkowska, A.;
- Räsänen, S.;
- Al-Hello, H.;
- Bojang, M.;
- Lyytikäinen, O.;
- Nuorti, J. P.;
- Jalava, K.;
- Räsänen, S;
- Lyytikäinen, O
Publication type:
journal article
Population-based seroprevalence of Puumala hantavirus in Finland: smoking as a risk factor.
Published in:
2018
By:
- Latronico, F.;
- Mäki, S.;
- Rissanen, H.;
- Ollgren, J.;
- Lyytikäinen, O.;
- Vapalahti, O.;
- Sane, J.;
- Mäki, S;
- Lyytikäinen, O
Publication type:
journal article
Regional differences in long-term cycles and seasonality of Puumala virus infections, Finland, 1995-2014.
Published in:
2016
By:
- SANE, J.;
- OLLGREN, J.;
- MAKARY, P.;
- VAPALAHTI, O.;
- KUUSI, M.;
- LYYTIKÄINEN, O.;
- Lyytikäinen, O
Publication type:
journal article
Tuberculosis in immigrants in Finland, 1995-2013.
Published in:
2016
By:
- RÄISÄNEN, P. E.;
- SOINI, H.;
- VASANKARI, T.;
- SMIT, P.W.;
- NUORTI, J. P.;
- OLLGREN, J.;
- RUUTU, P.;
- LYYTIKÄINEN, O.;
- Räisänen, P E;
- Lyytikäinen, O
Publication type:
journal article
Clostridium difficile infections in Finland, 2008-2015: trends, diagnostics and ribotypes.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2017, v. 36, n. 10, p. 1939, doi. 10.1007/s10096-017-3017-5
By:
- Mentula, S.;
- Kotila, S.;
- Lyytikäinen, O.;
- Ibrahem, S.;
- Ollgren, J.;
- Virolainen, A.
Publication type:
Article
Epidemiology and emm types of invasive group A streptococcal infections in Finland, 2008-2013.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2015, v. 34, n. 10, p. 2131, doi. 10.1007/s10096-015-2462-2
By:
- Smit, P.;
- Lindholm, L.;
- Lyytikäinen, O.;
- Jalava, J.;
- Pätäri-Sampo, A.;
- Vuopio, J.
Publication type:
Article
Epidemiology, outcome and emm types of invasive group A streptococcal infections in Finland.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2010, v. 29, n. 10, p. 1229, doi. 10.1007/s10096-010-0989-9
By:
- Siljander, T.;
- Lyytikäinen, O.;
- Vähäkuopus, S.;
- Snellman, M.;
- Jalava, J.;
- Vuopio, J.
Publication type:
Article
Panton-Valentine leukocidin genes and staphylococcal chromosomal cassette mec types amongst Finnish community-acquired methicillin-resistant Staphylococcus aureus strains, 1997–1999.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2007, v. 26, n. 10, p. 729, doi. 10.1007/s10096-007-0334-0
By:
- Kardén-Lilja, M.;
- Ibrahem, S.;
- Vuopio-Varkila, J.;
- Salmenlinna, S.;
- Lyytikäinen, O.;
- Siira, L.;
- Virolainen, A.
Publication type:
Article
Trends and outcome of nosocomial and community-acquired bloodstream infections due to Staphylococcus aureus in Finland, 1995–2001.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2005, v. 24, n. 6, p. 399, doi. 10.1007/s10096-005-1345-3
By:
- Lyytikäinen, O.;
- Ruotsalainen, E.;
- Järvinen, A.;
- Valtonen, V.;
- Ruutu, P.
Publication type:
Article
Molecular Epidemiology of Methicillin-Resistant Staphylococcus aureus in Finland.
Published in:
European Journal of Clinical Microbiology & Infectious Diseases, 2000, v. 19, n. 2, p. 101, doi. 10.1007/s100960050438
By:
- Salmenlinna, S.;
- Lyytikäinen, O.;
- Kotilainen, P.;
- Scotford, R.;
- Siren, E.;
- Vuopio-Varkila, J.
Publication type:
Article
Disease burden of Puumala virus infections, 1995-2008.
Published in:
Epidemiology & Infection, 2010, v. 138, n. 10, p. 1484, doi. 10.1017/S0950268810000087
By:
- MAKARY, P.;
- KANERVA, M.;
- OLLGREN, J.;
- VIRTANEN, M. J.;
- VAPALAHTI, O.;
- LYYTIKÄINEN, O.
Publication type:
Article
Molecular epidemiology of an outbreak caused by Salmonella enterica serovar Newport in Finland and the United Kingdom.
Published in:
2000
By:
- Lyytikäinen, O;
- Koort, J;
- Ward, L;
- Schildt, R;
- Ruutu, P;
- Japisson, E;
- Timonen, M;
- Siitonen, A
Publication type:
journal article
An outbreak of calicivirus associated with consumption of frozen raspberries.
Published in:
1999
By:
- Pönkä, A;
- Maunula, L;
- von Bonsdorff, C H;
- Lyytikäinen, O
Publication type:
journal article
An outbreak of Listeria monocytogenes serotype 3a infections from butter in Finland.
Published in:
2000
By:
- Lyytikäinen O;
- Autio T;
- Maijala R;
- Ruutu P;
- Honkanen-Buzalski T;
- Miettinen M;
- Hatakka M;
- Mikkola J;
- Anttila V;
- Johansson T;
- Rantala L;
- Aalto T;
- Korkeala H;
- Siitonen A
Publication type:
Journal Article
Antimicrobial prescribing in nursing homes in Finland: results of three point prevalence surveys.
Published in:
Infection, 2013, v. 41, n. 2, p. 355, doi. 10.1007/s15010-012-0331-9
By:
- Rummukainen, M.-l.;
- Kärki, T.;
- Kanerva, M.;
- Haapasaari, M.;
- Ollgren, J.;
- Lyytikäinen, O.
Publication type:
Article
Methicillin-resistant Staphylococcus aureus (MRSA) in Europe: which infection control measures are taken?
Published in:
Infection, 2010, v. 38, n. 3, p. 159, doi. 10.1007/s15010-010-0001-8
By:
- Hansen, S.;
- Schwab, F.;
- Asensio, A.;
- Carsauw, H.;
- Heczko, P.;
- Klavs, I.;
- Lyytikäinen, O.;
- Palomar, M.;
- Riesenfeld-Orn, I.;
- Savey, A.;
- Szilagyi, E.;
- Valinteliene, R.;
- Fabry, J.;
- Gastmeier, P.
Publication type:
Article
Survey of Clostridium difficile infection surveillance systems in Europe, 2011.
Published in:
Eurosurveillance (15607917), 2016, v. 21, n. 29, p. 5, doi. 10.2807/1560-7917.ES.2016.21.29.30291
By:
- Kola, A.;
- Wiuff, C.;
- Akerlund, T.;
- van Benthem, B. H.;
- Coignard, B.;
- Lyytikäinen, O.;
- Weitzel-Kage, D.;
- Suetens, C.;
- Wilcox, M. H.;
- Kuijper, E. J.;
- Gastmeier, P.
Publication type:
Article
Pandemic vaccination strategies and influenza severe outcomes during the influenza A(H1N1)pdm09 pandemic and the post-pandemic influenza season: the Nordic experience.
Published in:
Eurosurveillance (15607917), 2016, v. 21, n. 16, p. 25, doi. 10.2807/1560-7917.ES.2016.21.16.30208
By:
- Cuesta, J. Gil;
- Aavitsland, P.;
- Englund, H.;
- Gudlaugsson, Ó.;
- Hauge, S. H.;
- Lyytikäinen, O.;
- Sigmundsdóttir, G.;
- Tegnell, A.;
- Virtanen, M.;
- Krause, T. Grove
Publication type:
Article
Respiratory diphtheria in an asylum seeker from Afghanistan arriving to Finland via Sweden, December 2015.
Published in:
Eurosurveillance (15607917), 2016, v. 21, n. 2, p. 1, doi. 10.2807/1560-7917.ES.2016.21.2.30105
By:
- Sane, J.;
- Sorvari, T.;
- Wideström, M.;
- Kauma, H.;
- Kaukoniemi, U.;
- Tarkka, E.;
- Puumalainen, T.;
- Kuusi, M.;
- Salminen, M.;
- Lyytikäinen, O.
Publication type:
Article
Coincidental detection of the first outbreak of carbapenemase-producing Klebsiella pneumoniae colonisation in a primary care hospital, Finland, 2013.
Published in:
Eurosurveillance (15607917), 2015, v. 20, n. 26, p. 16, doi. 10.2807/1560-7917.ES2015.20.26.21172
By:
- Kanerva, M.;
- Skogberg, K.;
- Ryynänen, K.;
- Pahkamäki, A.;
- Jalava, J.;
- Ollgren, J.;
- Tarkka, E.;
- Lyytikäinen, O.
Publication type:
Article
Reduced cross-protection against influenza A(H3N2) subgroup 3C.2a and 3C.3a viruses among Finnish healthcare workers vaccinated with 2013/14 seasonal influenza vaccine.
Published in:
Eurosurveillance (15607917), 2015, v. 20, n. 5, p. 13, doi. 10.2807/1560-7917.ES2015.20.5.21028
By:
- Haveri, A.;
- Ikonen, N.;
- Julkunen, I.;
- Kantele, A.;
- Anttila, V. J.;
- Ruotsalainen, E.;
- Nohynek, H.;
- Lyytikäinen, O.;
- Savolainen-Kopra, C.
Publication type:
Article
Influenza-associated hospitalisations in Finland from 1996 to 2010: unexpected age-specific burden during the influenza A(H1N1)pdm09 pandemic from 2009 to 2010.
Published in:
Eurosurveillance (15607917), 2012, v. 17, n. 38, p. 7, doi. 10.2807/ese.17.38.20276-en
By:
- Jacks, A.;
- Ollgren, J.;
- Ziegler, T.;
- Lyytikäinen, O.
Publication type:
Article
Epidemic sindbis virus infection in Finland: a population-based case-control study of risk factors.
Published in:
2011
By:
- Sane J;
- Guedes S;
- Ollgren J;
- Kurkela S;
- Klemets P;
- Vapalahti O;
- Kela E;
- Lyytikäinen O;
- Pekka Nuorti J
Publication type:
Journal Article
Invasive pneumococcal infections among persons with and without underlying medical conditions: implications for prevention strategies.
Published in:
2008
By:
- Klemets P;
- Lyytikäinen O;
- Ruutu P;
- Ollgren J;
- Pekka Nuorti J;
- Klemets, Peter;
- Lyytikäinen, Outi;
- Ruutu, Petri;
- Ollgren, Jukka;
- Nuorti, J Pekka
Publication type:
journal article
Travellers returning with measles from Thailand to Finland, April 2012: infection control measures.
Published in:
Eurosurveillance (15607917), 2012, v. 17, n. 22, p. 2, doi. 10.2807/ese.17.22.20184-en
By:
- Kantele, A.;
- Valtonen, K.;
- Davidkin, I.;
- Martelius, T.;
- Võželevskaja, N.;
- Skogberg, K.;
- Liesmaa, I.;
- Lyytikäinen, .O
Publication type:
Article
Increased incidence of Mycoplasma pneumoniae infection in Finland, 2010--2011.
Published in:
Eurosurveillance (15607917), 2012, v. 17, n. 5, p. 8, doi. 10.2807/ese.17.05.20072-en
By:
- Polkowska, A.;
- Harjunpää, A.;
- Toikkanen, S.;
- Lappalainen, M.;
- Vuento, R.;
- Vuorinen, T.;
- Kauppinen, J.;
- Flinck, H.;
- Lyytikäinen, O.
Publication type:
Article
Rabies Control in Finland: A 12-Year Experience of Human and Veterinary Surveillance.
Published in:
Zoonoses & Public Health, 2009, v. 56, n. 9/10, p. 496, doi. 10.1111/j.1863-2378.2008.01206.x
By:
- Rimhanen-Finne, R.;
- Jakava-Viljanen, M.;
- Lyytikäinen, O.;
- Davidkin, I.;
- Kuusi, M.
Publication type:
Article
Infektionsepidemiologie lebensmittelbedingter Campylobacter-Infektionen Untersuchung eines Ausbruchs in Sachsen-Anhalt mittels epidemiologischer, mikrobiologischer und molekularbiologischer Methoden.
Published in:
Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz, 1999, v. 42, n. 3, p. 206, doi. 10.1007/s001030050085
By:
- Thurm, V.;
- Dinger, E.;
- Lyytikäinen, O.;
- Petersen, L.;
- Wiebelitz, A.;
- Lange, D.;
- Fischer, R.;
- Oppermann, H.;
- Mäde, D.
Publication type:
Article
Pneumocystis carinii pneumonia in adults with acute leukaemia: is there a need for primary chemoprophylaxis?
Published in:
European Journal of Haematology, 1996, v. 56, n. 3, p. 188, doi. 10.1111/j.1600-0609.1996.tb01343.x
By:
- Lyytikäinen, O.;
- Elonen, E.;
- Lautenschlager, I.;
- Jokipii, A.;
- Tiittanen, L.;
- Ruutu, P.
Publication type:
Article
The reliability of the McCabe score as a marker of co-morbidity in healthcare-associated infection point prevalence studies.
Published in:
Journal of Infection Prevention, 2016, v. 17, n. 3, p. 127, doi. 10.1177/1757177415617245
By:
- Reilly, J. S.;
- Price, L.;
- Godwin, J.;
- Coignard, B.;
- Cairns, S.;
- Malcolm, W.;
- Hopkins, S.;
- Lyytikäinen, O.;
- Hansen, S.;
- Hughes, G. J.
Publication type:
Article
Persistence of a Multiresistant Clone of Staphylococcus epidermidis in a Neonatal Intensive-Care Unit for a Four-Year Period.
Published in:
Clinical Infectious Diseases, 1995, v. 20, n. 1, p. 24
By:
- Lyytikäinen, O.;
- Saxén, H.;
- Ryhänen, R.;
- Vaara, M.;
- Vuopio-Varkila, J.
Publication type:
Article
Estimating the burden of A(H1N1)pdm09 influenza in Finland during two seasons.
Published in:
Epidemiology & Infection, 2014, v. 142, n. 5, p. 964, doi. 10.1017/S0950268813002537
By:
- SHUBIN, M.;
- VIRTANEN, M.;
- TOIKKANEN, S.;
- LYYTIKÄINEN, O.;
- AURANEN, K.
Publication type:
Article
What really happened with pneumonia mortality in Finland in 2000-2008?: a cohort study.
Published in:
2013
By:
- Manderbacka, K;
- Arffman, M;
- Lyytikäinen, O;
- Sajantila, A;
- Keskimäki, I
Publication type:
journal article
What really happened with pneumonia mortality in Finland in 2000–2008?: a cohort study.
Published in:
Epidemiology & Infection, 2013, v. 141, n. 4, p. 800, doi. 10.1017/S0950268812001562
By:
- MANDERBACKA, K.;
- ARFFMAN, M.;
- LYYTIKÄINEN, O.;
- SAJANTILA, A.;
- KESKIMÄKI, I.
Publication type:
Article

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