John Elmerdahl Olsen

John Elmerdahl Olsen

Professor

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    ORCID: 0000-0001-6225-6587

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    1. Published

      16S to 23S rRNA spacer fragment length polymorphism of Salmonella enterica at subspecies and serotype levels

      Christensen, Henrik, Lange Møller, P., Vogensen, Finn Kvist & Olsen, John Elmerdahl, 2000, In: Journal of Applied Microbiology. 89, p. 130-136 7 p.

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

    2. Published

      In vitro transfer of sulphonamide and gentamicin resistance from E. coli of animal origin to E. coli of human origin

      Porro, M. T., Olsen, John Elmerdahl, Jakobsen, L. & Hammerum, A. M., 2006. 1 p.

      Research output: Contribution to conference › Poster › Research

    3. Published

      Salmonella isolates with different behavior in adhesion to surfaces studied by DNA micro array assisted analysis

      Holmstrøm, K., Olsen, K. N., Meldgaard, H., Bagge-Ravn, D., Frees, Dorte, Lauritsen, D., Gram, L. & Olsen, John Elmerdahl, 2005. 1 p.

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

    4. Published

      Salmonella source attribution based on microbial subtyping

      Barco, L., Barrucci, F., Olsen, John Elmerdahl & Ricci, A., 2013, In: International Journal of Food Microbiology. 163, 2-3, p. 193-203 11 p.

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

    5. Published

      A Virus-like Particle-Based F4 Enterotoxigenic Escherichia coli Vaccine Is Inhibited by Maternally Derived Antibodies in Piglets but Generates Robust Responses in Sows

      Aves, Kara-Lee, Guerra, Priscila Regina, Fresno, A. H., Saraiva, M. M. S., Cox, E., Bækbo, P. J., Nielsen, Morten Agertoug, Sander, Adam F. & Olsen, John Elmerdahl, 2023, In: Pathogens. 12, 12, 19 p., 1388.

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

    6. Published

      A bioinformatic approach to identify core genome difference between Salmonella Pullorum and Salmonella Enteritidis

      Fei, Xiao, Li, Q., Olsen, John Elmerdahl & Jiao, X., 2020, In: Infection, Genetics and Evolution. 85, 104446.

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

    7. Published

      A hitherto not recognized phenotype of spvA in Salmonella

      Frees, Dorte, Gram, L., Holmstrøm, K. & Olsen, John Elmerdahl, 2010, Proceedings: 13S international symposium salmonella and salmonellosis. p. 33-34 2 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    8. Published

      A manual of basic tools in bioinformatics

      Christensen, Henrik & Olsen, John Elmerdahl, 2003, 35 p.

      Research output: Book/Report › Compendium/lecture notes › Education

    9. Published

      A manual of basic tools in bioinformatics

      Christensen, Henrik & Olsen, John Elmerdahl, 2003. 34 p.

      Research output: Contribution to conference › Paper › Research

    10. Published

      A new real-time PCR method for the identification of Salmonella Dublin

      Persson, S., Jacobsen, T., Olsen, John Elmerdahl, Olsen, K. E. P. & Hansen, F., 2012, In: Journal of Applied Microbiology. 113, 3, p. 615-621 7 p.

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

    11. Published

      A plasmid-encoded fetmp-fls iron uptake system confers selective advantages to salmonella enterica serovar typhimurium in growth under iron-restricted conditions and for infection of mammalian host cells

      García, V., Herrero-Fresno, A., Rodicio, R., Felipe-López, A., Montero, I., Olsen, John Elmerdahl, Hensel, M. & Rodicio, M. R., 2020, In: Microorganisms. 8, 5, 15 p., 630.

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

    12. Published

      A randomised clinical trial on the efficacy of oxytetracycline dose through water medication of nursery pigs on diarrhoea, faecal shedding of Lawsonia intracellularis and average daily weight gain

      Larsen, Inge, Hjulsager, C. K., Holm, A., Olsen, John Elmerdahl, Nielsen, Søren Saxmose & Nielsen, Jens Peter, 1 Jan 2016, In: Preventive Veterinary Medicine. 123, p. 52-59 8 p.

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

    13. Published

      A rapid polymerase chain reaction (PCR)-based assay for the identification of Listeria monocytogenes in food samples

      Rossen, L., Holmstrøm, K. & Olsen, John Elmerdahl, Nov 1991, In: International Journal of Food Microbiology. 14, 2, p. 145-151 7 p.

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

    14. Published

      A study on effectiveness of seven disinfectants against possible bacteria contaminants of coops and premises inhabited by indigenous chickens and ducks

      Njagi, L. W., Mbuthia, P. G., Bebora, L. C., Nyaga, P. N., Minga, U. & Olsen, John Elmerdahl, 2005, In: Kenya Veterinarian. 29, p. 113-118 4 p.

      Research output: Contribution to journal › Journal article › Research

    15. Published

      A third mode of surface-associated growth: immobilization of Salmonella enterica serovar Typhimurium modulates the RpoS-directed transcriptional programme

      Knudsen, G. M., Nielsen, M., Grassby, T., Danino-Appleton, V., Thomsen, Line Elnif, Colquhoun, I. J., Brocklehurst, T. F., Olsen, John Elmerdahl & Hinton, J. C. D., 2012, In: Environmental Microbiology. 14, 8, p. 1855-1875 21 p.

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

    16. Published

      A ¤typing concept for Salmonella

      Olsen, John Elmerdahl, Lau Baggesen, D., Christensen, Henrik & Platt, D. J., 1998, EUR. Aspán, A. & Mulder, R. W. A. W. (eds.). 18209 ed. Publications Office, p. 97-103 7 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    17. Published

      A ¤typing concept for Salmonella

      Olsen, John Elmerdahl, Lau Baggesen, D., Christensen, Henrik & Platt, D. J., 1997. 1 p.

      Research output: Contribution to conference › Paper › Research

    18. Published

      ANTIBACTERIAL EFFECTS OF SINGLE AND COMBINED CRUDE EXTRACTS OF SYNADENIUM GLAUCESCENS AND COMMIPHORA SWYNNERTONII

      Ochollah, G. M., Msengwa, S. Z., Mabiki, P. F., Kusiluka, J. M. L., Mdegela, H. R. & Olsen, John Elmerdahl, 2022, In: African Journal of Infectious Diseases. 16, 2, p. 9-16 8 p.

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

    19. Published

      Abstract i forbindelse med præsentation af poster til: Avancerede målesystemer og databehandling til proces- og produktudvikling, 1995, KVL

      Christensen, Henrik & Olsen, John Elmerdahl, 1995

      Research output: Other contribution › Communication

    20. Published

      Adaptation of Salmonella Typhimurium to triclosan

      Gantzhorn, M. R., Olsen, John Elmerdahl & Thomsen, Line Elnif, 2012.

      Research output: Contribution to conference › Poster › Research

    21. Published

      Adaptive responses to cefotaxime treatment in ESBL-producing Escherichia coli and the possible use of significantly regulated pathways as novel secondary targets

      Møller, T. S. B., Rau, M. H., Bonde, C. S., Sommer, M. O. A., Guardabassi, Luca & Olsen, John Elmerdahl, Sep 2016, In: Journal of Antimicrobial Chemotherapy. 71, 9, p. 2449-2459 11 p.

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

    22. Published

      An improved method for rapid isolation of plasmid DNA from wild‐type Gram‐negative bacteria for plasmid restriction profile analysis

      Olsen, John Elmerdahl, May 1990, In: Letters in Applied Microbiology. 10, 5, p. 209-212 4 p.

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

    23. Published

      An observational field study of porcine post-weaning diarrhea: clinical and microbiological findings, and fecal pH-measurements as a potential diagnostic tool

      Eriksen, E. Ø., Kudirkiene, E., Barington, Kristiane, Goecke, Nicole Bakkegård, Blirup-Plum, Sophie Amalie, Nielsen, Jens Peter, Olsen, John Elmerdahl, Jensen, Henrik Elvang, Pankoke, K., Larsen, Lars, Liu, G. & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 33.

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

    24. Published

      Analysis of gene order data supports vertical inheritance of the leukotoxin operon and genome rearrangements in the 5' flanking region in genus Mannheimia

      Larsen, J., Kuhnert, P., Frey, J., Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2007, In: BMC Evolutionary Biology. 7, 184, 11 p.

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

    25. Published

      Analysis of the contribution of bacteriophage ST64B to in vitro virulence traits of Salmonella enterica serovar Typhimurium

      Herrero Fresno, A., Leekitcharoenphon, P., Hendriksen, R. S., Olsen, John Elmerdahl & Aarestrup, F. M., 2014, In: Journal of Medical Microbiology. 63, 3, p. 331-342 12 p.

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

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    ID: 4236663