John Elmerdahl Olsen

John Elmerdahl Olsen

Professor

Member of:

    ORCID: 0000-0001-6225-6587

    Publication year:
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    301 - 350 out of 489Page size: 50
    1. 2003
    2. Published

      Detection of Gallibacterium spp. in Chickens by Fluorescent 16S rRNA In Situ Hybridization

      Bojesen, Anders Miki, Christensen, Henrik, Nielsen, O. L., Olsen, John Elmerdahl & Bisgaard, M., 2003, In: Journal of Clinical Microbiology. VOl 41, No. 11, 11, p. 5167-5172 6 p.

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

    3. Published

      Detection of gallibacterium spp. in chickens by fluorescent 16s in situ hybridizatuib

      Bojesen, Anders Miki, Christensen, Henrik, Nielsen, O. L., Olsen, John Elmerdahl & Bisgaard, M., 2003. 1 p.

      Research output: Contribution to conference › Paper › Research

    4. Published

      Genetic Diversity of Gallibacterium anatis Isolates from Different Chicken Flocks

      Bojesen, Anders Miki, Thorpdahl, M., Christensen, Henrik & Olsen, John Elmerdahl, 2003, In: Journal of Clinical Microbiology. June, p. 2737-2740, 6, p. 2737-2740 4 p.

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

    5. Published

      Genetic relationships among avian isolates classified as Pasteurella haemolytica, "Actinobacillus salpingitidis" or Pasteurella anatis with proposal of Gallibacterium anatis gen. nov., comb. nov. and discription of additional genomospecies within Gallibacterium gen. nov.

      Christensen, Henrik, Bisgaard, M., Bojesen, Anders Miki, Mutters, R. ;. & Olsen, John Elmerdahl, 2003, In: Int. Journal of Systemtic and Evolutionary Microbiology. (2003) 53, p. 275-287 13 p.

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

    6. Published

      Link between stress adaptation and virulence of Salmonella Dublin and S. Typhimurium.

      Thomsen, Line Elnif, Olsen, John Elmerdahl, Chadfield, M. S. & Ingmer, Hanne, 2003, Meeting of WG of COST920. 1 ed. Veterinary Medical Research Institute of the Hungarian Academy of Sciences, p. 22 1 p.

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

    7. Published

      Marketing of free range local chickens in Morogora and Kilosa urban markets, Tanzania.

      Mlozi, M. R. S., Kakengi, A. V. M., Minga, U. M., mtambo, A. M. & Olsen, John Elmerdahl, 2003, In: Livestock Research for Rural Development. (2) 2003, p. 1 12 p.

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

    8. Published

      Marketingof fress range local chickens in Morogora and Kilosa urban markets, Taqnzania

      Mlozi, M. R. S., Kakengi, U. M., Minga, A. M., Mtambo, A. M. & Olsen, John Elmerdahl, 2003, 15 ed. 12 p.

      Research output: Book/Report › Ph.D. thesis › Research

    9. Published

      Of Hemophilus paragallinarum,Hemophilus somnus, Mannheimia (Pasteurella hemolytica, MannHeimia spp., Pasteurella trehalosi, and Pasteurella multocida.

      Larsen, J., Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2003, Methods in Molecular Biology. p. 216. 27 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    10. Published

      Phages types and antimicrobial resistande among Danish bovine Staphylococcus aureua isolates since the 1950s

      Vintov, J., Aarestrup, F. M., Zinn, C. E. & Olsen, John Elmerdahl, 2003, In: Veterinary Microbiology. 97, p. 63 10 p.

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

    11. Published

      Phylogenetic analysis by 16S rDNA gene sequence comparison of avian taxa of Bisgaard and characterization and description of two new taxa of Pasteurellaceae

      Christensen, Henrik, Foster, G., Christensen, Jens Peter, Pennycott, T., Olsen, John Elmerdahl & Bisgaard, M., 2003, In: Journal of Applied Microbiology. 95, 2, p. 354-363 9 p.

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

    12. Published

      Reduced amounts of LPS affect both stress tolerance and virulence of Salmonella enterica serovar Dublin.

      Thomsen, Line Elnif, Chadfield, M. S., Bispham, J. ,., Wallis, T. S. ,., Olsen, John Elmerdahl & Ingmer, Hanne, 2003, In: FEMS Microbiology Letters. 228, 2, p. 225-231 7 p.

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

    13. Published

      Salmonella typhimurium invades multiple epithelial cell types in pig jejunum

      Schauser, K., Olsen, John Elmerdahl & Larsson, L., 2003, ASM Conferences. American Society of Microbiology, p. 89 1 p.

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

    14. Published

      The role of flagella and shemotaxis on virulence of salmonella enterica serotypes typhimurium and Dublin

      Chadfield, M. S., Høegh-Andersen, K. H., Aabo, S., Christensen, Jens Peter & Olsen, John Elmerdahl, 2003. 1 p.

      Research output: Contribution to conference › Paper › Research

    15. 2002
    16. Published

      Characterisation of attenuated crp mutants of Salmonella enterica biotype gallinarum

      Chadfield, M. S., Rosu, V., Santona, A., Rubino, S. & Olsen, John Elmerdahl, 2002. 2 p.

      Research output: Contribution to conference › Paper › Research

    17. Published

      ClpP is involved in the stress response and degradation of misfolded proteins in Salmonella enterica serovar typhimurium

      Thomsen, Line Elnif, Olsen, John Elmerdahl, Foster, J. W. & Ingmer, Hanne, 2002, In: Microbiology. 148, p. 2727-2733 7 p.

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

    18. Published

      Comparative Pathogenesis of Experimental Infections with Salmonella gallinarum in Local and Commericial Chickens. Propical Animal Health and Production, 34

      Mdegela, R. H., Msoffe, P. L. M., Waihenya, R. W., Kasanga, J. C., Mtambo, M. M. A., Minga, U. M. & Olsen, John Elmerdahl, 2002, In: Propical Animal Health and Production. 34, p. 195-204 10 p.

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

    19. Published

      Comparative pathogenesis of experimental infections with Salmonella gallinarum in local and commercial chickens

      Mdegela, R. H., Msoffe, P. L. M., Waihenya, R. W., Kasanga, J. C., Mtambo, M. M. A., Minga, U. M. & Olsen, John Elmerdahl, 2002, In: Tropical Animal Health and Production. 34, 3, p. 195-204 10 p.

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

    20. Published

      Detection of gallibacterium (Pasteurella anatis, [Actinobacillus] salpingtidis and [P.] haemolytica-like organisms) in chickens by fluorescent 16S rRNA in situ hybridization

      Bojesen, Anders Miki, Christensen, Henrik, Bisgaard, M., Nielsen, O. L. & Olsen, John Elmerdahl, 2002, Abstract. 89 ed. p. 77 1 p.

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

    21. Published

      Differences in the ability of Salmonella typhimurium strains to utilize the serotype associated virulence plasmid

      Olsen, John Elmerdahl, Thomsen, Line Elnif, Brown, D. J. & Chadfield, M. S., 2002. 2 p.

      Research output: Contribution to conference › Paper › Research

    22. Published

      Distribution of the leukotoxin gene (1ktA) in Mannheimia species isolated from different animal hosts

      Larsen, J., Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2002, Abstract. 91 ed. p. 77-78 2 p.

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

    23. Published

      Final classification of Bisgaard taxon 9 as Actinobacillus arthritidis sp. nov. and recognition of a novel genomospecies for equine strains of Actinobacillus lignieresii

      Christensen, Henrik, Bisgaard, M., Angen, Ø. & Olsen, John Elmerdahl, 2002, In: International Journal of Systematic and Evolutionary Microbiology. 52, p. 1239-1246 8 p.

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

    24. Published

      Genomic diversity of Gallibacterium anatis in chicken flocks representing different production systems

      Bojesen, Anders Miki, Thorpdahl, M., Christensen, Henrik, Olsen, John Elmerdahl & Bisgaard, M., 2002, Abstract. 90 ed. p. 77 1 p.

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

    25. Published

      Genotypic heterogeneity of Pasteurella gallinarum as shown by ribotyping and 16S rRNA sequencing

      Christensen, Henrik, Dziva, F., Olsen, John Elmerdahl & Bisgaard, M., 2002, In: Avian Pathology. 31, p. 603-610 8 p.

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

    26. Published

      Genotypical homogeneity among phenotypic variants of Pasteurella multocida, biovars 2 or P. canis and P. avium and isolates misclassified as P. anatis

      Christensen, Henrik, Olsen, John Elmerdahl & Bisgaard, M., 2002, Abstract. 19 ed. p. 29 1 p.

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

    27. Published

      Nutrient status of crop contents of rural scavenging local chickens in Tanzania

      Mwalusanya, N. A., Katule, A. M., Mutayoba, S. K., Minga, U. M., Mtambo, M. M. A. & Olsen, John Elmerdahl, 2002, In: British Poultry Science. 43, 1, p. 64-69 6 p.

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

    28. Published

      PCR detection of [haemophilus] paragallinarum, [H] somnus, Mannheimia (Pasteurella) haemolytica, Mannheimia spp., [P.] trehalosi, and Pasteurella multocida

      Christensen, Henrik, Bisgaard, M., Larsen, J. & Olsen, John Elmerdahl, 2002, PCR detection of microbial pathogens : methods and protocols. Sachse, K. & Frey, J. (eds.). Humana Press, p. 257-274 18 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    29. Published

      Prevalence and clonal diversity of Actinobacillus salpingtidis/Pasteurella haemolytica-like bacteria in chickens from different production systems

      Bojesen, Anders Miki, Thorpdahl, M., Christensen, Henrik, Olsen, John Elmerdahl & Bisgaard, M., 2002. 1 p.

      Research output: Contribution to conference › Paper › Research

    30. Published

      Productivity and natural disease resistance potential of free-ranging local chicken ecotypes in Tanzania

      Msoffe, P. L. M., Mtambo, M. M. A., Minga, U. M., Gwakisa, P. S., Mdegela, R. H. & Olsen, John Elmerdahl, 2002, In: Livestock Research for Rural Development. 14, 3, 12 p.

      Research output: Contribution to journal › Journal article › Research

    31. Published

      Quantitative comparison of intestinal invasion of zoonotic serotypes of Salmonella enterica in poultry

      Aabo, S., Christensen, Jens Peter, Chadfield, M. S., Carstensen, B., Olsen, John Elmerdahl & Bisgaard, M., 2002, In: Avian Pathology. 31, 1, p. 41-47 7 p.

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

    32. Published

      Quantitative investigations of in vivo invasion of Pasteurella multocida using a chicken intestinal loop model

      Christensen, Jens Peter, Bojesen, Anders Miki, Jensen, T. K., Bisgaard, M., Nielsen, O. L. & Olsen, John Elmerdahl, 2002, Abstract. 21 ed. p. 30 1 p.

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

    33. Published

      Reclassification of Bisgaard taxon 33 with proposal of Avibacterium amazonae gen. nov., sp. nov. as a new member of pasteurellaceae

      Christensen, Henrik, Aalbæk, Bent, Bisgaard, M. & Olsen, John Elmerdahl, 2002, Abstract. 16 ed. p. 29 1 p.

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

    34. Published

      Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov.

      Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2002, In: International Journal of Systematic and Evolutionary Microbiology. 52, p. 1569-1576 8 p.

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

    35. Published

      Revised phylogeny of pasteurellaceae by 16S rRNA and house-keeping gene sequence analysis and impact on host association

      Christensen, H. M., Bisgaard, M. & Olsen, John Elmerdahl, 2002, Abstract. 17 ed. p. 28 1 p.

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

    36. Published

      Revised phylogeny of pasteurellaceae by 16S rRNA and house-keeping gene sequence comparisons

      Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2002.

      Research output: Contribution to conference › Paper › Research

    37. Published

      Taxonomic changes within Actinobacillus sensu stricto

      Bisgaard, M., Christensen, Henrik & Olsen, John Elmerdahl, 2002, Abstract. 18 ed. p. 29 1 p.

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

    38. 2001
    39. Published

      Bakteriel resistens overfor desinfektionsmidler

      Aarestrup, F. M., Hasman, H. & Olsen, John Elmerdahl, 2001, In: Dansk Veterinærtidsskrift. 84, 21, p. 6-13 8 p.

      Research output: Contribution to journal › Journal article › Research

    40. Published

      Chemotaxis of Vibrio anguillarum to fish mucus: role of the origin of the fish mucus, the fish species and the serogroup of the pathogen

      Larsen, M. H., Larsen, J. L. & Olsen, John Elmerdahl, 2001, In: FEMS Microbiology Ecology. 38, p. 77-80 4 p.

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

    41. Published

      Comparative investigations on the invasion of Salmonella serotypes in a chicken intestinal loop assay and cell culture assays

      Christensen, Jens Peter, Aabo, S., Chadfield, M. S., Cartensen, N., Olsen, John Elmerdahl & Bisgaard, M., 2001. 1 p.

      Research output: Contribution to conference › Paper › Research

    42. Published

      Determination of the oxidative burst chemiluminescent response of avian and murine primary macrophages versus corresponding cell lines in relation to stimulation with Salmonella serotypes

      Chadfield, M. S. & Olsen, John Elmerdahl, 2001, In: Veterinary Immunology and Immunopathology. 80, p. 289-308 20 p.

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

    43. Published

      Effects of indomethacin on Salmonella Typhimurium- and cholera toxin-induced fluid accumulation in the porcine small intestine

      Unmack, M. A., Berner Hansen, M., Grøndahl, M. L., Olsen, John Elmerdahl, Christensen, P. & Skadhauge, E., 2001, In: Transboundary and Emerging Diseases. 48, p. 153-163 11 p.

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

    44. Published

      Genetic diversity of Pasteurella multocida fowl cholera isolates as demonstrated by ribotyping and 16S rRNA and partial atpD sequence comparisons

      Petersen, K. D., Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2001, In: Microbiology. 147, p. 2739-2748 10 p.

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

    45. Published

      Identification and characterisation of the free ranging local chicken ecotypes in Tanzania

      Msoffe, P. L. M., Mtambo, M. M. A., Minga, U. M., Yongolo, M. G. S., Gwakisa, P. S. & Olsen, John Elmerdahl, 2001. 10 p.

      Research output: Contribution to conference › Paper › Research

    46. Published

      Improving the Health and Productivity of the Rual Chisken in Africa: Research and Development Efforts in Tanzania

      Minga, U. M., Mtambo, M. M. A., Katule, A. M., Mutayoba, S. K., Mwalusanya, N. A., Lawrence, P., Mdegela, R. H. & Olsen, John Elmerdahl, 2001, Aciar proceedings. Editors: R. G. Alders and P. B. Spradbrow (ed.). 103 ed. Austarlian Centre for International Agricultural Research, 6 p.

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

    47. Published

      Investigations into the host specific infection of the avian host by Salmonella serotype Gallinarum

      Olsen, John Elmerdahl, Chadfield, M. S., Aabo, S. & Christensen, Jens Peter, 2001. 1 p.

      Research output: Contribution to conference › Paper › Research

    48. Published

      Is characterization of a single isolate sufficient for valid publication of a new genus or species? proposal to modify recommendation 30b of the Bacteriological code (1990 revision)

      Christensen, Henrik, Bisgaard, M., Frederiksen, W., Mutters, R., Kuhnert, P. & Olsen, John Elmerdahl, 2001, In: International Journal of Systematic and Evolutionary Microbiology. 51, p. 2221-2225 5 p.

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

    49. Published

      Ny veterinær studieordning i støbeskeen

      Olsen, John Elmerdahl & Strøm, H., 2001, In: Dansk Veterinærtidsskrift. 84, 16, p. 11-14 4 p.

      Research output: Contribution to journal › Journal article › Communication

    50. Published

      Nye principper for undervisning

      Olsen, John Elmerdahl & Strøm, H., 2001, In: Det Levende Universitet. 12, p. 10 1 p.

      Research output: Contribution to journal › Journal article › Communication

    51. Published

      Persistence of vancomycin resistant enterococci (VRE) in broiler flocks and broiler houses after the vancomycin ban in Denmark

      Heuer, O. E., Pedersen, K., Bogø Jensen, L., Madsen, M. & Olsen, John Elmerdahl, 2001.

      Research output: Contribution to conference › Paper › Research

    52. Published

      Phenotypes including immunocompetence in scavenging local chicken ecotypes in Tanzania

      Msoffe, P. L. M., Minga, U. M., Olsen, John Elmerdahl, Yongolo, M. G. S., Juul-Madsen, H. R., Gwakisa, P. S. & Mtambo, M. M. A., 2001, In: Tropical Animal Health and Production. 33, p. 341-354 14 p.

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

    53. Published

      Productivity of local chickens under village manegement conditions

      Mwalusanya, N. A., Katule, A. M., Mutayoba, S. K., Mtambo, M. M. A., Olsen, John Elmerdahl & Minga, U. M., 2001, In: Tropical Animal Health and Production. 34, p. 405-416 12 p.

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

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