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12 results on '"Hardardottir, Hjordis"'

1. Livestock-associated methicillin-resistant staphylococcus aureus in humans, Europe

Author

van Cleef, Brigitte A.G.L., Monnet, Dominique L., Voss, Andreas, Krziwanek, Karina, Allerberger, Franz, Struelens, Marc, Zemlickova, Helena, Skov, Robert L., Vuopio-Varkila, Jaana, Cuny, Christiane, Friedrich, Alexander W., Spiliopoulou, Iris, Paszti, Judit, Hardardottir, Hjordis, Rossney, Angela, Pan, Angelo, Pantosti, Annalisa, Borg, Michael, Grundmann, Hajo, Mueller-Premru, Manica, Olsson-Liljequist, Barbro, Widmer, Andreas, Harbarth, Stephan, Schweiger, Alexander, Unal, Serhat, and Kluytmans, Jan A.J.W.

Subjects
Identification and classification, Diseases and pests, Research, Genetic aspects, Staphylococcus aureus infections -- Identification and classification -- Genetic aspects -- Research, Cross infection -- Research -- Genetic aspects, Cattle -- Diseases and pests -- Genetic aspects -- Research, Nosocomial infections -- Research -- Genetic aspects
Abstract

Livestock-associated methicillin-resistant Staphylococcus aureus (MRSA) was first associated with human disease in 2003, when a MRSA clone associated with a reservoir in pigs and cattle was isolated from a human. [...]

Published
2011
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2. Role of electronic data exchange in an international outbreak caused by Salmonella enterica serotype Typhimurium DT204b. (Dispatches)

Author

Lindsay, Elizabeth A., Lawson, Andrew J., Walker, Rachel A., Ward, Linda R., Smith, Henry R., Scott, Fiona W., O'Brien, Sarah J., Fisher, Ian S.T., Crook, Paul D., Wilson, Deborah, Brown, Derek J., Hardardottir, Hjordis, Wannet, Wim J.B., Tschape, Helmut, and Threlfall, E. John

Subjects
Europe -- Health aspects, Research, Health aspects, Salmonella -- Research -- Health aspects, Communicable diseases -- Research
Abstract

From July through September 2000, patients in five European countries were infected with a multidrug-resistant strain of Salmonelia Typhimurium DT204b. Epidemiologic investigations were facilitated by the transmission of electronic images [...]

Published
2002

4. The epidemiology of invasive meningococcal disease in EU/EEA countries, 2004–2014

Author

Whittaker, Robert, primary, Dias, Joana Gomes, additional, Ramliden, Miriam, additional, Ködmön, Csaba, additional, Economopoulou, Assimoula, additional, Beer, Netta, additional, Pastore Celentano, Lucia, additional, Kanitz, Elisabeth, additional, Richter, Lukas, additional, Mattheus, Wesley, additional, Bleyenheuft, Corinne, additional, Georgieva, Teodora, additional, Simeonovski, Ivan, additional, Vučina, Vesna Višekruna, additional, Filipović, Sanja Kurečić, additional, Koliou, Maria, additional, Bagatzouni, Despo Pieridou, additional, Krizova, Pavla, additional, Sebestova, Helena, additional, Hoffmann, Steen, additional, Valentiner-Branth, Palle, additional, Kerbo, Natalia, additional, Peetso, Rita, additional, Kuusi, Markku, additional, Toropainen, Maija, additional, Parent, Isabelle, additional, Taha, Muhamed-Kheir, additional, Vogel, Ulrich, additional, Hellenbrand, Wiebke, additional, Georgakopoulou, Theano, additional, Tzanakaki, Georgina, additional, Krisztalovics, Katalin, additional, Tirczka, Tamás, additional, Gudnason, Thorolfur, additional, Hardardottir, Hjordis, additional, O'Lorcain, Piaras, additional, Bennett, Desiree, additional, D'Ancona, Fortunato, additional, Stefanelli, Paola, additional, Savrasova, Larissa, additional, Vasilevska, Darja, additional, Kuprevičienė, Nerija, additional, Liausedienė, Rasa, additional, Demuth, Irène, additional, Scheiden, Gérard, additional, Melillo, Jackie Maistre, additional, Caruana, Paul, additional, van der Ende, Arie, additional, Mollema, Liesbeth, additional, Caugant, Dominique, additional, Blystad, Hans, additional, Skoczyńska, Anna, additional, Zota, Lavinia, additional, Pana, Marina, additional, Grgič Vitek, Marta, additional, Paragi, Metka, additional, Cano, Rosa, additional, Abad, Raquel, additional, Lepp, Tiia, additional, and Campbell, Helen, additional

Published
2017
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5. Implications of Differential Age Distribution of Disease-Associated Meningococcal Lineages for Vaccine Development

Author

Brehony, Carina Trotter, Caroline L. Ramsay, Mary E. and Chandra, Manosree Jolley, Keith A. van der Ende, Arie and Carion, Francoise Berthelsen, Lene Hoffmann, Steen and Hardardottir, Hjordis Vazquez, Julio A. Murphy, Karen and Toropainen, Maija Canica, Manuela Ferreira, Eugenia Diggle, Mathew Edwards, Giles F. Taha, Muhamed-Kheir Stefanelli, Paola Kriz, Paula Gray, Steve J. Fox, Andrew J. and Jacobsson, Susanne Claus, Heike Vogel, Ulrich Tzanakaki, Georgina Heuberger, Sigrid Caugant, Dominique A. Frosch, Matthias Maiden, Martin C. J.

Abstract

New vaccines targeting meningococci expressing serogroup B polysaccharide have been developed, with some being licensed in Europe. Coverage depends on the distribution of disease-associated genotypes, which may vary by age. It is well established that a small number of hyperinvasive lineages account for most disease, and these lineages are associated with particular antigens, including vaccine candidates. A collection of 4,048 representative meningococcal disease isolates from 18 European countries, collected over a 3-year period, were characterized by multilocus sequence typing (MLST). Age data were available for 3,147 isolates. The proportions of hyperinvasive lineages, identified as particular clonal complexes (ccs) by MLST, differed among age groups. Subjects = 25-year-olds were more likely to experience disease due to less common ccs and unassigned STs. Younger and older subjects were vulnerable to a more diverse set of genotypes, indicating the more clonal nature of genotypes affecting adolescents and young adults. Knowledge of temporal and spatial diversity and the dynamics of meningococcal populations is essential for disease control by vaccines, as coverage is lineage specific. The nonrandom age distribution of hyperinvasive lineages has consequences for the design and implementation of vaccines, as different variants, or perhaps targets, may be required for different age groups.

Published
2014

6. Implications of Differential Age Distribution of Disease-Associated Meningococcal Lineages for Vaccine Development

Author

Brehony, Carina, Trotter, Caroline L., Ramsay, Mary E., Chandra, Manosree, Jolley, Keith A., van der Ende, Arie, Carion, Francoise, Berthelsen, Lene, Hoffmann, Steen, Hardardottir, Hjordis, Vazquez, Julio A., Murphy, Karen, Toropainen, Maija, Canica, Manuela, Ferreira, Eugenia, Diggle, Mathew, Edwards, Giles F., Taha, Muhamed-Kheir, Stefanelli, Paola, Kriz, Paula, Gray, Steve J., Fox, Andrew J., Jacobsson, Susanne, Claus, Heike, Vogel, Ulrich, Tzanakaki, Georgina, Heuberger, Sigrid, Caugant, Dominique A., Frosch, Matthias, Maiden, Martin C. J., Brehony, Carina, Trotter, Caroline L., Ramsay, Mary E., Chandra, Manosree, Jolley, Keith A., van der Ende, Arie, Carion, Francoise, Berthelsen, Lene, Hoffmann, Steen, Hardardottir, Hjordis, Vazquez, Julio A., Murphy, Karen, Toropainen, Maija, Canica, Manuela, Ferreira, Eugenia, Diggle, Mathew, Edwards, Giles F., Taha, Muhamed-Kheir, Stefanelli, Paola, Kriz, Paula, Gray, Steve J., Fox, Andrew J., Jacobsson, Susanne, Claus, Heike, Vogel, Ulrich, Tzanakaki, Georgina, Heuberger, Sigrid, Caugant, Dominique A., Frosch, Matthias, and Maiden, Martin C. J.

Abstract

New vaccines targeting meningococci expressing serogroup B polysaccharide have been developed, with some being licensed in Europe. Coverage depends on the distribution of disease-associated genotypes, which may vary by age. It is well established that a small number of hyperinvasive lineages account for most disease, and these lineages are associated with particular antigens, including vaccine candidates. A collection of 4,048 representative meningococcal disease isolates from 18 European countries, collected over a 3-year period, were characterized by multilocus sequence typing (MLST). Age data were available for 3,147 isolates. The proportions of hyperinvasive lineages, identified as particular clonal complexes (ccs) by MLST, differed among age groups. Subjects <1 year of age experienced lower risk of sequence type 11 (ST-11) cc, ST-32 cc, and ST-269 cc disease and higher risk of disease due to unassigned STs, 1- to 4-year-olds experienced lower risk of ST-11 cc and ST-32 cc disease, 5- to 14-year-olds were less likely to experience ST-11 cc and ST-269 cc disease, and >= 25-year-olds were more likely to experience disease due to less common ccs and unassigned STs. Younger and older subjects were vulnerable to a more diverse set of genotypes, indicating the more clonal nature of genotypes affecting adolescents and young adults. Knowledge of temporal and spatial diversity and the dynamics of meningococcal populations is essential for disease control by vaccines, as coverage is lineage specific. The nonrandom age distribution of hyperinvasive lineages has consequences for the design and implementation of vaccines, as different variants, or perhaps targets, may be required for different age groups., Funding Agencies:Wellcome TrustEuropean Union

Published
2014
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7. Livestockassociated methicillin- resistant staphylococcus aureus in humans, Europe

Author

van Cleef, Brigitte A G L, Monnet, Dominique Louis, Voss, Andreas, Krziwanek, Karina, Allerberger, Franz, Struelens, Marc, Zemlickova, Helena, Skov, Robert, Vuopio-Varkila, Jaana, Cuny, Christina, Friedrich, Alexander W, Spiliopoulou, Iris, Pászti, Judit, Hardardottir, Hjordis, Rossney, Angela, Pan, Angelo, Pantosti, Annalisa, Borg, Michael, Grundmann, Hajo, Mueller-Premru, Manica, Olsson-Liljequist, Barbro, Widmer, Andreas, Harbarth, Stephan Jürgen, Schweiger, Alexander, Unal, Serhat, Kluytmans, Jan, van Cleef, Brigitte A G L, Monnet, Dominique Louis, Voss, Andreas, Krziwanek, Karina, Allerberger, Franz, Struelens, Marc, Zemlickova, Helena, Skov, Robert, Vuopio-Varkila, Jaana, Cuny, Christina, Friedrich, Alexander W, Spiliopoulou, Iris, Pászti, Judit, Hardardottir, Hjordis, Rossney, Angela, Pan, Angelo, Pantosti, Annalisa, Borg, Michael, Grundmann, Hajo, Mueller-Premru, Manica, Olsson-Liljequist, Barbro, Widmer, Andreas, Harbarth, Stephan Jürgen, Schweiger, Alexander, Unal, Serhat, and Kluytmans, Jan

Abstract

To estimate the proportion of methicillin-resistant Staphylococcus aureus (MRSA) isolates from humans that were sequence type (ST) 398, we surveyed 24 laboratories in 17 countries in Europe in 2007. Livestock-associated MRSA ST398 accounted for only a small proportion of MRSA isolates from humans; most were from the Netherlands, Belgium, Denmark, and Austria., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2011

8. Livestock-associated Methicillin-ResistantStaphylococcus aureus in Humans, Europe

Author

van Cleef, Brigitte A.G.L., primary, Monnet, Dominique L., additional, Voss, Andreas, additional, Krziwanek, Karina, additional, Allerberger, Franz, additional, Struelens, Marc, additional, Zemlickova, Helena, additional, Skov, Robert L., additional, Vuopio-Varkila, Jaana, additional, Cuny, Christiane, additional, Friedrich, Alexander W., additional, Spiliopoulou, Iris, additional, Pászti, Judit, additional, Hardardottir, Hjordis, additional, Rossney, Angela, additional, Pan, Angelo, additional, Pantosti, Annalisa, additional, Borg, Michael, additional, Grundmann, Hajo, additional, Mueller-Premru, Manica, additional, Olsson-Liljequist, Barbro, additional, Widmer, Andreas, additional, Harbarth, Stephan, additional, Schweiger, Alexander, additional, Unal, Serhat, additional, and Kluytmans, Jan A.J.W., additional

Published
2011
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9. Proposal for common Nordic epidemiological terms and definitions for methicillin-resistant Staphylococcus aureus (MRSA)

Author

Skov, Robert, primary, Gudlaugsson, Olafur, additional, Hardardottir, Hjordis, additional, Harthug, Stig, additional, Jakobsen, Trond, additional, Jørn Kolmos, Hans, additional, Olsson-Liljequist, Barbro, additional, Peltonen, Reijo, additional, Tveten, Yngvar, additional, Vuopio-Varkila, Jaana, additional, and Åhrén, Christina, additional

Published
2008
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11. Role of Electronic Data Exchange in an International Outbreak Caused bySalmonella entericaSerotype Typhimurium DT204b

Author

Lindsay, Elizabeth A., primary, Lawson, Andrew J., additional, Walker, Rachel A., additional, Ward, Linda R., additional, Smith, Henry R., additional, Scott, Fiona W., additional, O'Brien, Sarah J., additional, Fisher, Ian S.T., additional, Crook, Paul D., additional, Wilson, Deborah, additional, Brown, Derek J, additional, Hardardottir, Hjordis, additional, Wannet, Wim J.B., additional, Tschäpe, Helmut, additional, and Threlfall, E. John, additional

Published
2002
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12. Subtyping of Salmonella entericaSerovar Typhimurium Outbreak Strains Isolated from Humans and Animals in Iceland

Author

Gudmundsdottir, Sigrun, Hardardottir, Hjordis, and Gunnarsson, Eggert

Abstract

ABSTRACTA total of 75 Salmonella entericaserovar Typhimurium strains of various (mainly human and animal) origins were typed by pulsed-field gel electrophoresis (PFGE) and phage typing. These strains were collected during an outbreak in Iceland in 1999 and 2000. The typing revealed that 84% of the strains belonged to the same PFGE and phage type (PT), namely, PFGE type 1Aa and PT 1.

Published
2003
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