Rikke Heidemann Olsen

Rikke Heidemann Olsen

Associate Professor


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  1. 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

  2. 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

  3. 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

  4. Published

    A Novel Promazine Derivative Shows High in vitro and in vivo Antimicrobial Activity Against Staphylococcus aureus

    Ronco, T., Jørgensen, N. S., Holmer, I., Kromann, Sofie, Sheikhsamani, E., Permin, A., Svenningsen, Søren Wedel, Christensen, Jørn Bolstad & Olsen, Rikke Heidemann, 2020, In: Frontiers in Microbiology. 11, 12 p., 560798.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    A SEVERE OUTBREAK OF COLIBACILLOSIS IN BROILERS

    Kromann, Sofie, Baig, S. J., Olsen, Rikke Heidemann, Edslev, S. M., Thoefner, Ida , Bojesen, Anders Miki, Jensen, Henrik Elvang & Stegger, M., 29 Aug 2023.

    Research output: Contribution to conference › Conference abstract for conference › Communication

  6. Published

    A new phenothiazine derivate is active against Clostridioides difficile and shows low cytotoxicity

    Ronco, T., Aragao, F. M., Saaby, Lasse, Christensen, Jørn Bolstad, Permin, A., Williams, Andrew Richard, Thamsborg, Stig Milan & Olsen, Rikke Heidemann, 2021, In: PLoS ONE. 16, 10, 13 p., e0258207.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    A novel derivative of thioridazine shows low toxicity and efficient activity against gram‐positive pathogens

    Jørgensen, N. S., Saaby, Lasse, Andersson, A. M., Kromann, Sofie, Sheikhsamani, E., Permin, A., Ronco, T., Svenningsen, Søren Wedel, Christensen, Jørn Bolstad & Olsen, Rikke Heidemann, 2020, In: Antibiotics. 9, 6, 11 p., 327.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. 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

  9. Published

    Antibiotic resistance and polymyxin B resistance mechanism of Aeromonas spp. isolated from yellow catfish, hybrid snakeheads and associated water from intensive fish farms in Southern China

    Li, L., Yao, R., Olsen, Rikke Heidemann, Zhang, Y. & Meng, H., 2022, In: LWT. 166, 113802.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Antimicrobial Activity of Sertraline on Listeria monocytogenes

    Wang, Y., Li, L., Cai, P., Olsen, Rikke Heidemann, Peng, S. & Meng, H., 2023, In: International Journal of Molecular Sciences. 24, 5, 4678.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. 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

  12. Published

    Assessment of automated assays for serum amyloid A, haptoglobin (PIT54) and basic biochemistry in broiler breeders experimentally infected with Escherichia coli

    Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2022, In: Veterinary Research. 53, 1, 7 p., 25.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. 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. 42-45

    Research output: Contribution to journal › Journal article › Research

  14. 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

  15. Published

    Characterization of a Streptococcus species isolated from Siganus guttatus in South China

    Li, L., Wang, C., Olsen, Rikke Heidemann, Li, X., Meng, H., Xu, L. & Shi, L., 2021, In: Aquaculture. 545, 737163.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. 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

  17. 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

  18. Published

    Characterization of extended-spectrum cephalosporins and fluoroquinolone resistance of a Salmonella enterica serovar Thompson isolate from ready-to-eat pork product in China

    Li, L., Olsen, Rikke Heidemann, Xiao, J., Liang, M., Meng, H. & Peng, S., 2022, In: Frontiers in Microbiology. 13, 964009.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. Published

    Correlation between footpad lesions and systemic bacterial infections in broiler breeders

    Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, 2019, In: Veterinary Research. 50, 1, 5 p., 38.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    Development of an aerogenous Escherichia coli infection model in adult broiler breeders

    Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2021, In: Scientific Reports. 11, 15 p., 19556.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Diversity and population overlap between avian and human Escherichia coli belonging to sequence type 95

    Jørgensen, S. L., Stegger, M., Kudirkiene, E., Lilje, B., Poulsen, Louise Ladefoged, Ronco, T., Dos Santos, T. P., Kiil, K., Bisgaard, M., Pedersen, K., Nolan, L. K., Price, L. B., Olsen, Rikke Heidemann, Andersen, P. S. & Christensen, Henrik, 2019, In: mSphere. 4, 1, 12 p., e00333-18.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. 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

  29. 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

  30. 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

  31. Published

    Draft genome sequences of three human pathogenic acinetobacter baumannii strains

    Madhi, M., Ronco, T., Hasani, A. & Olsen, Rikke Heidemann, 2019, In: Microbiology Resource Announcements. 8, 14, 2 p., e01742-18.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. 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

  33. Published

    Dramatic increase in slaughter condemnations due to Escherichia coli ST23 and ST101 within the Danish broiler production

    Kromann, Sofie, Baig, S., Olsen, Rikke Heidemann, Edslev, S. M., Thoefner, Ida , Bojesen, Anders Miki, Jensen, Henrik Elvang & Stegger, M., 2023, In: Veterinary Microbiology. 280, 109696.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Efficacy of a novel antimicrobial hydrogel for eradication of Staphylococcus epidermidis, Staphylococcus aureus and Cutibacterium acnes from preformed biofilm and treatment performance in an in vivo MRSA wound model

    Ronco, T., Aragao, M. F., Svenningsen, Søren Wedel, Christensen, Jørn Bolstad, Permin, A., Saaby, Lasse, Bionda, N., Lantz, E. E. & Olsen, Rikke Heidemann, 2021, In: JAC-Antimicrobial Resistance. 3, 3, 7 p., dlab108.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Efflux Pumps and Different Genetic Contexts of tet(X4) Contribute to High Tigecycline Resistance in Escherichia fergusonii from Pigs

    Wang, J., Wan, X., Meng, H., Olsen, Rikke Heidemann, Chen, X. & Li, L., 2023, In: International Journal of Molecular Sciences. 24, 8, 10 p., 6923.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Engineering a CRISPR interference system targeting AcrAB-TolC efflux pump to prevent multidrug resistance development in Escherichia coli

    Wan, X., Li, Q., Olsen, Rikke Heidemann, Meng, H., Zhang, Z., Wang, J., Zheng, H., Li, L. & Shi, L., 2022, In: The Journal of antimicrobial chemotherapy. 77, 8, p. 2158-2166 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Epidemiological Prevalence of Phenotypical Resistances and Mobilised Colistin Resistance in Avian Commensal and Pathogenic E. coli from Denmark, France, The Netherlands, and the UK

    Mead, A., Billon-Lotz, C., Olsen, Rikke Heidemann, Swift, B., Richez, P., Stabler, R. & Pelligand, L., 2022, In: Antibiotics. 11, 5, 631.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. 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

  39. 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

  40. Published

    Establishment and application of an aerogenous model of avian colibacillosis

    Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Thoefner, Ida & Jensen, Henrik Elvang, 2023.

    Research output: Contribution to conference › Conference abstract for conference › Communication

  41. 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

  42. 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

  43. Published

    Exploring the resistome, virulome, mobilome and microbiome along pork production chain using metagenomics

    Li, L., Xiao, Y., Wang, C., Olsen, Rikke Heidemann, Meng, H. & Shi, L., 2022, In: International Journal of Food Microbiology. 371, 109674.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. 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

  45. Published

    First Report of a Foodborne Salmonella enterica Serovar Gloucester (4:i:l,w) ST34 Strain Harboring blaCTX–M–55 and qnrS Genes Located in IS26-Mediated Composite Transposon

    Li, L., Olsen, Rikke Heidemann, Song, A., Xiao, J., Wang, C., Meng, H. & Shi, L., 2021, In: Frontiers in Microbiology. 12, 646101.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    First report of two foodborne Salmonella enterica subsp. enterica serovar Bovismorbificans isolates carrying a novel mega-plasmid harboring blaDHA-1 and qnrB4 genes

    Li, L., Olsen, Rikke Heidemann, Wang, C., Song, A., Xiao, J., Meng, H., Ronco, T. & Shi, L., 2021, In: International Journal of Food Microbiology. 360, 109439.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Genetic context of blaCTX–M–55 and qnrS1 genes in a foodborne Salmonella enterica serotype Saintpaul isolate from China

    Li, L., Olsen, Rikke Heidemann, Xiao, J., Meng, H., Peng, S. & Shi, L., 2022, In: Frontiers in Microbiology. 13, 899062.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. 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

  49. Published

    Genomic Characterization of mcr-1-Carrying Foodborne Salmonella enterica serovar Typhimurium and Identification of a Transferable Plasmid Carrying mcr-1, blaCTX-M-14, qnrS2, and oqxAB Genes From Ready-to-Eat Pork Product in China

    Li, L., Wan, X., Olsen, Rikke Heidemann, Xiao, J., Wang, C., Xu, X., Meng, H. & Shi, L., 2022, In: Frontiers in Microbiology. 13, 903268.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    GtxA is a virulence factor that promotes a Th2-like response during Gallibacterium anatis infection in laying hens

    Tang, B., Pors, S. E., Kristensen, B. M., Skjerning, R. B. J., Olsen, Rikke Heidemann & Bojesen, Anders Miki, 2020, In: Veterinary Research. 51, 1, 12 p., 40.

    Research output: Contribution to journal › Journal article › Research › peer-review

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