Rikke Heidemann Olsen
Associate Professor
Veterinary Clinical Microbiology
Stigbøjlen 4
1870 Frederiksberg C
- 2008
- Published
Chelonobacter oris gen. nov., sp. nov., a new member of the Pasteurellaceae
Olsen, Rikke Heidemann, Neubauer, C., Christensen, Henrik, Bojesen, Anders Miki, Hess, M. & Bisgaard, M., 2008.Research output: Contribution to conference › Conference abstract for conference › Research
- 2009
- Published
Comparative studies on [Pasteurella] testudinis and [P.] testudinis-like bacteria and proposal of Chelonobacter oris gen. nov., sp. nov. as a new member of the family Pasteurellaceae
Olsen, Rikke Heidemann, Neubauer, C., Christensen, Henrik, Bojesen, Anders Miki, Hess, M. & Bisgaard, M., 2009, In: International Journal of Systematic and Evolutionary Microbiology. 59, 7, p. 1583-1588 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impact of Nobilis Escherichia coli inac vaccine on parent stock mortality, first week mortality of broilers, and population diversity of E. coli in vaccinated flocks
Olsen, Rikke Heidemann, Christensen, Henrik & Bisgaard, M., 2009. 1 p.Research output: Contribution to conference › Conference abstract for conference › Research
- Published
MLST and MLSA of Enterococcus faecalis isolates demonstrating different lesion types in broiler parents
Bisgaard, M., Petersen, A., Olsen, Rikke Heidemann & Christensen, Henrik, 2009. 1 p.Research output: Contribution to conference › Conference abstract for conference › Research
- Published
Molecular characterization of APEC - a precondition for proper understanding and handling of outbreaks
Olsen, Rikke Heidemann, Bojesen, Anders Miki, Christensen, Henrik & Bisgaard, M., 2009, Proceedings of the 5th WPSA International Symposium on Turkey Production, Berlin, Germany, 2009. Mensch und Buch Verlag, p. 277-285 9 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- 2010
- Published
Characterization of pasteurellaceae-like bacteria isolated from clinically affected psittacine birds
Olsen, Rikke Heidemann, Neubauer, C., Christensen, Henrik, Korczak, B., Bojesen, Anders Miki, Hess, M. & Bisgaard, M., 2010, In: Journal of Applied Microbiology. 108, 4, p. 1235-1243 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impact of Escherichia coli vaccine on parent stock mortality, first week mortality of broilers and population diversity of E. coli in vaccinated flocks
Olsen, Rikke Heidemann, Christensen, Henrik, Ewers, C. & Bisgaard, M., 2010, In: Avian Pathology. 39, 4, p. 287-295 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Improved understanding of diseases asssociated with potential bacterial pathogens of poultry to be gained from multilocus sequence typing (MLST)
Bisgaard, M., Olsen, Rikke Heidemann & Christensen, Henrik, 2010, European Poultry Conference. 4 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- Published
Multilocus sequence typing of Enterococcus faecalis isolates demonstrating different lesion types in broiler breeders
Olsen, Rikke Heidemann, Petersen, A., Christensen, Henrik & Bisgaard, M., 2010, In: Avian Pathology. 39, 6, p. 435-440 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2011
- Published
Characterization of diversity and virulence traits of Escherichia coli associated with haemorrhagic septicaemia outbreaks in turkeys
Olsen, Rikke Heidemann, Chadfield, M. S., Christensen, Jens Peter, Scheutz, F., Christensen, Henrik & Bisgaard, M., 2011, 17th World Veterinary Poultry Congress: proceedings. WVPA, p. 471-473 3 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- Published
Clonality and virulence traits of Escherichia coli associated with hemorrhagic septicaemia in turkeys
Olsen, Rikke Heidemann, Chadfield, M. S., Christensen, Jens Peter, Scheutz, F., Christensen, Henrik & Bisgaard, M., 2011, In: Avian Pathology. 40, 6, p. 587-595 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Escherichia coli associeret sygdom i konsumægsektoren. Kortlægning af faktorer af betydning for sygdomsudviking og sygdomsforebyggelse
Bisgaard, M., Olsen, Rikke Heidemann, Kyvsgaard, N. C., Christensen, Jens Peter & Christensen, Henrik, 2011, In: Dansk Erhvervsfjerkrae. 39, p. 130-133 4 p.Research output: Contribution to journal › Journal article › Communication
- Published
Genetic diversity of Escherichia coli associated with increased mortality in free-range layers concurrently infected with Histomonas meleagridis as demonstrated by plasmid profiling and multilocus sequence typing (MLST)
Olsen, Rikke Heidemann, Stockholm, N. M., Permin, A., Christensen, Jens Peter, Christensen, Henrik & Bisgaard, M., 2011, 17th World Veterinary Poultry Congress: proceedings. WVPA, p. 754-756 3 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- Published
Multi-locus sequence typing and plasmid profile characterization of avian pathogenic Escherichia coli associated with increased mortality in free-range layer flocks
Olsen, Rikke Heidemann, Stockholm, N. M., Permin, A., Christensen, Jens Peter, Christensen, Henrik & Bisgaard, M., 2011, In: Avian Pathology. 40, 5, p. 437-444 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Transmission and genetic diversity of Enterococcus faecalis among layer chickens during hatch
Fertner, M. E., Olsen, Rikke Heidemann, Bisgaard, M. & Christensen, Henrik, 2011, In: Acta Veterinaria Scandinavica (Print). 53, 56, 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Virulence factors of Enterococcus faecalis of human and poultry origin seem to confirm the zoonotic potential of E. faecalis.
Olsen, Rikke Heidemann, Schønheyder, H., Christensen, Henrik & Bisgaard, M., 2011, 17th World Veterinary Poultry Congress: proceedings. WVPA, p. 474-476 3 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- 2012
- Published
Enterococcus faecalis of human and poultry origin share virulence genes supporting the zoonotic potential of E. faecalis
Olsen, Rikke Heidemann, Schønheyder, H. C., Christensen, Henrik & Bisgaard, M., 2012, In: Zoonoses and Public Health. 59, 4, p. 256-263 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
An investigation on first-week mortality in layers
Olsen, Rikke Heidemann, Frantzen, C., Christensen, Henrik & Bisgaard, M., 2012, In: Avian Diseases. 56, 1, p. 51-57 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Comparative genomics of multiple plasmids from APEC associated with clonal outbreaks demonstrates major similarities and identifies several potential vaccine-targets.
Olsen, Rikke Heidemann, Christensen, Henrik & Bisgaard, M., 2012, In: Veterinary Microbiology. 158, 3-4, p. 384-393 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Population diversity and impact of Enterococcus faecalis in chickens
Olsen, Rikke Heidemann, 2012, Department of Veterinary Disease Biology, University of Copenhagen. 125 p.Research output: Book/Report › Ph.D. thesis › Research
- Published
Transmission and genetic diversity of Enterococcus faecalis during hatch of broiler chicks
Olsen, Rikke Heidemann, Christensen, Henrik & Bisgaard, M., 2012, In: Veterinary Microbiology. 160, 1-2, p. 214-221 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2013
- Published
In vitro and in vivo investigation on genomic stability of Salmonella enterica Typhimurium DT41 obtained from broiler breeders in Denmark
Barua, H., Lindblom, I. L., Bisgaard, M., Christensen, Jens Peter, Olsen, Rikke Heidemann & Christensen, Henrik, 2013, In: Veterinary Microbiology. 166, 3-4, p. 607-616 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Hvordan opstår og udvikler bakterielle infektioner sig i store fjerkræflokke
Christensen, Henrik, Olsen, Rikke Heidemann, Pires dos Santos, T. M. S. & Bisgaard, M., 2013, In: Dansk Erhvervsfjerkrae. 42, 4, p. 216-221 6 p.Research output: Contribution to journal › Journal article › Research
- 2014
- Published
Extended-spectrum β-lactamase-producing Escherichia coli isolated from poultry: a review of current problems, illustrated with some laboratory findings
Olsen, Rikke Heidemann, Bisgaard, M., Löhren, U., Robineau, B. & Christensen, Henrik, 2014, In: Avian Pathology. 43, 3, p. 199-208 10 p.Research output: Contribution to journal › Review › Research › peer-review
- Published
Variations in virulence of avian pathogenic Escherichia coli demonstrated by the use of a new in vivo infection model
Pors, S. E., Olsen, Rikke Heidemann & Christensen, Jens Peter, 2014, In: Veterinary Microbiology. 170, 3-4, p. 368-374 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2015
- Published
Draft genome sequences of five clinical Enterococcus cecorum strains isolated from different poultry species in Poland
Dolka, B., Olsen, Rikke Heidemann, Thoefner, Ida & Christensen, Jens Peter, 2015, In: Genome Announcements. 3, 5, 2 p., e01085-15.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Draft genome sequences of three Escherichia coli strains with different In Vivo pathogenicities in an avian (Ascending) infection model of the oviduct
Olsen, Rikke Heidemann, Thoefner, Ida , Pors, S. E., Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, 2015, In: Genome Announcements. 3, 3, 2 p., e00399-15 .Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Longitudinal study of mortality observed in four broiler breeder flocks
Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, Sep 2015, 19th World Veterinary Poultry Association Congress. Cape Town, p. 148-148 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
- Published
Systemic reactive amyloidosis - an age related problem of importance in broiler breeders
Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, Sep 2015.Research output: Contribution to conference › Poster › Research › peer-review
- Published
Draft genome sequences of two commensal Enterococcus cecorum strains isolated from chickens in Belgium
Dolka, B., Boyen, F., Butaye, P., Olsen, Rikke Heidemann, Thoefner, Ida & Christensen, Jens Peter, 24 Sep 2015, In: Genome Announcements. 3, 5, 2 p., e01108-15.Research output: Contribution to journal › Journal article › Research › peer-review
- 2016
- Published
Beskytter E. coli autovacciner mod æggeleder- og bughindebetændelse under eksperimentelle forhold?
Thoefner, Ida , Ronco, T., Christensen, Jens Peter, Pedersen, K. & Olsen, Rikke Heidemann, 2016, In: Dansk Erhvervsfjerkrae. 45, 11, p. 42-45Research output: Contribution to journal › Journal article › Research
- Published
Draft Genome Sequences of Two Avian Pathogenic Escherichia coli Strains of Clinical Importance, E44 and E51
Ronco, T., Stegger, M., Andersen, P. S., Pedersen, K., Li, L., Thoefner, Ida & Olsen, Rikke Heidemann, 2016, In: Genome Announcements. 4, 4, 2 p., e00768-16.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Experimental induced avian E. coli salpingitis: significant impact of strain and host factors on the clinical and pathological outcome
Olsen, Rikke Heidemann, Thoefner, Ida , Pors, S. E., Pires dos Santos, T. M. S. & Christensen, Jens Peter, 2016, In: Veterinary Microbiology. 188, p. 59-66 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Pathology and Molecular Characterization of Escherichia Coli Associated With the Avian Salpingitis-Peritonitis Disease Syndrome
Olsen, Rikke Heidemann, Bisgaard, M., Christensen, Jens Peter, Kabell, S. & Christensen, Henrik, Mar 2016, In: Avian Diseases. 60, 1, p. 1-7 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Antimicrobial Resistance and Resistance Genes in Aerobic Bacteria Isolated from Pork at Slaughter
Li, L., Olsen, Rikke Heidemann, Ye, L., Yan, H., Nie, Q., Meng, H. & Shi, L., Apr 2016, In: Journal of Food Protection. 79, 4, p. 589-597 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Characterization of Antimicrobial Resistance of Listeria monocytogenes Strains Isolated from a Pork Processing Plant and Its Respective Meat Markets in Southern China
Li, L., Olsen, Rikke Heidemann, Ye, L., Wang, W., Shi, L., Yan, H. & Meng, H., May 2016, In: Foodborne pathogens and disease. 13, 5, p. 262-668 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Escherichia coli in industrial poultry production: aspects of transmission and disease development
Christensen, Jens Peter, Pors, S. E., Papasolomontos, S., Poulsen, Louise Ladefoged, Thoefner, Ida , Olsen, Rikke Heidemann, Christensen, Henrik & Bisgaard, M., Jun 2016, 16th International Conference on Production Diseases in Farm Animals: Book of abstracts. Wageningen Academic Publishers, p. 140 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
- Published
Infections with Gram positive cocci in broiler breeders: significance and prevalence
Thoefner, Ida , Poulsen, Louise Ladefoged, Olsen, Rikke Heidemann, Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, Jun 2016, 16th International Conference on Production Diseases in Farm Animals: Book of abstracts. Wageningen, Netherlands: Wageningen Academic Publishers, p. 141-141 1 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
Investigations of the pathogenesis of Staphylococcus aureus and Enterococcus faecalis in an experimental footpad infection model in broiler breeders
Thoefner, Ida , Olsen, Rikke Heidemann, Poulsen, Louise Ladefoged, Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, Oct 2016, Vetpath 2016 conference abstracts. Prato, p. 5-5 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
- Published
Characterization of a plasmid carrying cat, ermB and tetS genes in a foodborne Listeria monocytogenes strain and uptake of the plasmid by cariogenic Streptococcus mutans
Li, L., Olsen, Rikke Heidemann, Shi, L., Ye, L., He, J. & Meng, H., 5 Dec 2016, In: International Journal of Food Microbiology. 238, p. 68-71 4 p.Research output: Contribution to journal › Letter › Research › peer-review
- 2017
- Published
Insight into synergetic mechanisms of tetracycline and the selective serotonin reuptake inhibitor, sertraline, in a tetracycline-resistant strain of Escherichia coli
Li, L., Kromann, Sofie, Olsen, John Elmerdahl, Svenningsen, Søren Wedel & Olsen, Rikke Heidemann, 2017, In: Journal of Antibiotics. 70, 9, p. 944-953 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Longitudinal study of transmission of Escherichia coli from broiler breeders to broilers
Poulsen, Louise Ladefoged, Thoefner, Ida , Bisgaard, M., Christensen, Jens Peter, Olsen, Rikke Heidemann & Christensen, Henrik, 2017, In: Veterinary Microbiology. 207, p. 13-18Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Staphylococcus agnetis, a potential pathogen in broiler breeders
Poulsen, Louise Ladefoged, Thoefner, Ida , Bisgaard, M., Olsen, Rikke Heidemann, Christensen, Jens Peter & Christensen, Henrik, 2017, In: Veterinary Microbiology. 212, p. 1-6 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Treatment with high-dose antidepressants severely exacerbates the pathological outcome of experimental Escherichia coli infections in poultry
Kromann, Sofie, Kudirkiene, E., Li, L., Thoefner, Ida , Daldorph, E., Christensen, Jens Peter, Meng, H. & Olsen, Rikke Heidemann, 2017, In: PLoS ONE. 12, 10, 15 p., e0185914.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Spread of avian pathogenic Escherichia coli ST117 O78:H4 in Nordic broiler production
Ronco, T., Stegger, M., Olsen, Rikke Heidemann, Sekse, C., Nordstoga, A. B., Pohjanvirta, T., Lilje, B., Lyhs, U., Andersen, P. S. & Pedersen, K., 3 Jan 2017, In: BMC Genomics. 18, 8 p., 13.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Chromosomal features of Escherichia coli serotype O2:K2, an avian pathogenic E. coli
Jørgensen, S. L., Kudirkiene, E., Li, L., Christensen, Jens Peter, Olsen, John Elmerdahl, Nolan, L. K. & Olsen, Rikke Heidemann, 10 May 2017, In: Standards in Genomic Sciences. 12, 9 p., 33.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Evaluation of the efficacy of an autogenous Escherichia coli vaccine in broiler breeders
Li, L., Thoefner, Ida , Christensen, Jens Peter, Ronco, T., Pedersen, K. & Olsen, Rikke Heidemann, Jun 2017, In: Avian pathology : journal of the W.V.P.A. 46, 3, p. 300-308 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impact of egg disinfection of hatching eggs on the eggshell microbiome and bacterial load
Olsen, Rikke Heidemann, Kudirkiene, E., Thoefner, Ida , Pors, S., Karlskov-Mortensen, Peter, Li, L., Papasolomontos, S., Angastiniotou, C. & Christensen, Jens Peter, Nov 2017, In: Poultry Science. 96, 11, p. 3901-3911Research output: Contribution to journal › Journal article › Research › peer-review
- 2018
- Published
Transmission and pathogenicity of Gallibacterium anatis and Escherichia coli in embryonated eggs
Wang, C., Pors, S. E., Olsen, Rikke Heidemann & Bojesen, Anders Miki, 2018, In: Veterinary Microbiology. 217, p. 76-81 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Characterization of prevalent bacterial pathogens associated with pododermatitis in table egg layers
Olsen, Rikke Heidemann, Christensen, Henrik, Kabell, S. & Bisgaard, M., 4 May 2018, In: Avian Pathology. 47, 3, p. 281-285 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 6576950
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627
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Transmission and genetic diversity of Enterococcus faecalis among layer chickens during hatch
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
296
downloads
Spread of avian pathogenic Escherichia coli ST117 O78:H4 in Nordic broiler production
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
277
downloads
Chromosomal features of Escherichia coli serotype O2:K2, an avian pathogenic E. coli
Research output: Contribution to journal › Journal article › Research › peer-review
Published