John Elmerdahl Olsen

John Elmerdahl Olsen

Professor

Member of:

    ORCID: 0000-0001-6225-6587

    Publication year:
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    301 - 400 out of 489Page size: 100
    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

    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

    54. Published

      Random amplification of polymorphic DNA and phenotypic typing of Zimbabwean isolates of Pasteurella multocida

      Dziva, F., Christensen, Henrik, Olsen, John Elmerdahl & Mohan, K., 2001, In: Veterinary Microbiology. 82, p. 361-372 12 p.

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

    55. Published

      Smitte fra husdyrgødning: råd og fakta

      Lau Baggesen, D., Bager, F., Rattenborg, E., Olsen, John Elmerdahl, Bagger, J., Mikél Jensen, A., Steffensen, M. & Attermann Nielsen, K., 2001

      Research output: Other contribution › Communication

    56. Published

      Specific detection of Pasteurella multocida in chickens with fowl cholera and in pig lung tissues using fluorescent rRNA in situ hybridization

      Mbuthia, P. G., Christensen, Henrik, Boye, M., Dumong Petersen, K. M., Bisgaard, M., Nyaga, P. N. & Olsen, John Elmerdahl, 2001, In: Journal of Clinical Microbiology. 39, 7, p. 2627-2633 7 p.

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

    57. Published

      Taxonomy of taxon 9 of Bisgaard isolated from diseased horses and proposal of Actinobacillus hippikon sp. nov.

      Christensen, Henrik, Bisgaard, M. & Olsen, John Elmerdahl, 2001. 1 p.

      Research output: Contribution to conference › Paper › Research

    58. Published

      The role of flagella and chemotaxis on virulence of Salmonella enterica serotypes in the murine and avian host

      Jensen, K. H., Chadfield, M. S., Christensen, Jens Peter & Olsen, John Elmerdahl, 2001. 1 p.

      Research output: Contribution to conference › Paper › Research

    59. Published

      Veterinær studieordning i støbeskeen

      Olsen, John Elmerdahl & Strøm, H., 2001, In: Det Levende Universitet. 12, p. 6-8 3 p.

      Research output: Contribution to journal › Journal article › Communication

    60. 2000
    61. 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

    62. Published

      Characterisation of streptomycin resistance determinants in Danish isolates of Salmonella Typhimurium

      Madsen, L., Aarestrup, F. M. & Olsen, John Elmerdahl, 2000, In: Veterinary Microbiology. 75, p. 73-82 10 p.

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

    63. Published

      Characterization of E. coli isolates originating from a Danish broiler parent flock during a longitudinal study

      Christensen, Jens Peter, Brown, D. J., Olsen, John Elmerdahl & Bisgaard, M., 2000.

      Research output: Contribution to conference › Paper › Research

    64. Published

      Class I integrons containing a dhfrI trimethoprim resistance gene cassette in aquatic Acinetobacter spp.

      Petersen, A., Guardabassi, Luca, Dalsgaard, Anders & Olsen, John Elmerdahl, 2000, In: FEMS Microbiology Letters. 182, p. 73-76 4 p.

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

    65. Published

      DNA-DNA hybridization determined in micro-wells using covalent attachment of DNA

      Christensen, Henrik, Angen, Ø., Mutters, R., Olsen, John Elmerdahl & Bisgaard, M., 2000, In: International Journal of Systematic and Evolutionary Microbiology. 50, p. 1095-1102 8 p.

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

    66. Published

      DNA-based methods for detection of food-borne bacterial pathogens

      Olsen, John Elmerdahl, 2000, In: Food Research International. 33, p. 257-266 10 p.

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

    67. Published

      Development of an in vivo model for study of intestinal invasion by Salmonella enterica in chickens

      Aabo, S., Christensen, Jens Peter, Chadfield, M. S., Carstensen, B., Jensen, T. K., Bisgaard, M. & Olsen, John Elmerdahl, 2000, In: Infection and Immunity. 68, 12, p. 7122-7125 4 p.

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

    68. Published

      Distribution and in-vitro transfer of tetracycline resistance determinants in clinical and aquatic Acinetobacter strains

      Guardabassi, Luca, Dijkshoorn, L., Collard, J. -., Olsen, John Elmerdahl & Dalsgaard, Anders, 2000, In: Journal of Medical Microbiology. 49, p. 929-936 8 p.

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

    69. Published

      Distribution of tetracycline resistance determinants A to E and transfer in vitro of tetracycline resistance in clinical and aquatic Acinetobacter strains

      Guardabassi, Luca, Dijkshoorn, L., Olsen, John Elmerdahl & Dalsgaard, Anders, 2000, In: Journal of Medical Microbiology. 49, p. 829-836 8 p.

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

    70. Published

      Host adapted serotypes of Salmonella enterica

      Uzzau, S., Brown, D. J., Wallis, T., Rubino, S., Leori, G., Bernard, S., Casadesús, J., Platt, D. J. & Olsen, John Elmerdahl, 2000, In: Epidemiology and Infection. 125, p. 229-255 27 p.

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

    71. Published

      Increase in the prevalence of oxolinic acid resistant Acinetobacter spp. observed in a stream receiving the effluent from a freshwater trout farm following the treatment with oxolinic acid-medicated feed

      Guardabassi, Luca, Dalsgaard, Anders, Raffatellu, M. & Olsen, John Elmerdahl, 2000, In: Suisanzoshoku. 188, p. 205-218 14 p.

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

    72. Published

      Molecular epidemiology of Salmonella gallinarum in chickens in Tanzania

      Mdegela, R. H., Yongolo, M. G. S., Minga, U. M. & Olsen, John Elmerdahl, 2000, In: Avian Pathology. 29, p. 457-463 7 p.

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

    73. Published

      Molecular typing of Salmonella

      Olsen, John Elmerdahl, 2000, Salmonella in domestic animals. Wray, C. & Wray, A. (eds.). Wallingford: CABI Publishing, p. 429-446 18 p.

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

    74. Published

      Random amplification of polymorphic DNA and capsular typing of Zimbabwean isolates of Pasteurella multocida

      Dziva, F., Christensen, Henrik, Olsen, John Elmerdahl & Mohan, K., 2000.

      Research output: Contribution to conference › Paper › Research

    75. Published

      Selektion for antibiotikaresistens i Acinetobacter spp. i spildevand

      Petersen, A., Guardabassi, Luca, Olsen, John Elmerdahl & Dalsgaard, Anders, 2000, In: Dansk Veterinærtidsskrift. 83, 7, p. 6-9 4 p.

      Research output: Contribution to journal › Journal article › Research

    76. Published

      Sequence variation of the 16S to 23S rRNA spacer region in Salmonella enterica

      Christensen, Henrik, Lange Møller, P., Vogensen, Finn Kvist & Olsen, John Elmerdahl, 2000, In: Research in Microbiology. 151, p. 37-42 6 p.

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

    77. Published

      Vejen til en ny veterinær studieordning

      Olsen, John Elmerdahl, 2000, In: Dansk Veterinærtidsskrift. 83, 16, p. 19-21 3 p.

      Research output: Contribution to journal › Journal article › Research

    78. Published

      Virulence characterization of a strain of Salmonella enterica subspecies houten (subspecies iv) with chromosomal integrated Salmonella plasmid virulence (spv) genes

      Aabo, S., Brown, D. J. & Olsen, John Elmerdahl, 2000, In: Research in Microbiology. 151, p. 183-189 7 p.

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

    79. 1999
    80. Published

      Antibiotic resistance: genetic mechanisms and mobility

      Olsen, John Elmerdahl, 1999, In: Acta Veterinaria Scandinavica (Print Edition). 92, p. 15-22 8 p.

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

    81. Published

      Anvendelse af antibiotika i landbruget: betydning for udvikling af antibiotikaresistente bakterier

      Olsen, John Elmerdahl & Aarestrup, F. M., 1999, In: Miljoesk. 16, p. 16-23 8 p.

      Research output: Contribution to journal › Journal article › Communication

    82. Published

      Differentiation of Campylobacter coli and C. jejuni by length and DNA sequence of the 16S-23S rRNA internal spacer region

      Christensen, Henrik, Jørgensen, K. & Olsen, John Elmerdahl, 1999, In: Microbiology. 145, p. 99-105 7 p.

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

    83. Published

      Host specificity of Salmonella serotypes

      Olsen, John Elmerdahl & Chadfield, M., 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    84. Published

      Identification of lactic acid bacteria from chili bo, a Malaysian food ingredient

      Leisner, Jørgen, Pot, B., Christensen, Henrik, Rusul, G., Olsen, John Elmerdahl, Wee, B. W., Muhamad, K. & Ghazali, M., 1999, In: Applied and Environmental Microbiology. 65, 2, p. 599-605 7 p.

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

    85. Published

      Invasion af forskellige Salmonella serotyper bestemt ved in vivo og in vitro modeller

      Christensen, Jens Peter, Aabo, S., Chadfield, M. S., Carstensen, B., Olsen, John Elmerdahl & Bisgaard, M., 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    86. Published

      Levels of virulence are not determined by genomic lineage of Salmonella enterica serotype Enteritidis strains

      Olsen, John Elmerdahl, Tiainen, T. & Brown, D. J., 1999, In: Epidemiology and Infection. 123, p. 423-430 8 p.

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

    87. Published

      Navneændringer og nye bakteriearter af veterinær betydning

      Christensen, Henrik, Aabo, S., Aalbæk, Bent, Bisgaard, M. & Olsen, John Elmerdahl, 1999, In: Dansk Veterinærtidsskrift. 82, 4, p. 108-112 5 p.

      Research output: Contribution to journal › Journal article › Research

    88. Published

      New methods for detection and isolation of food borne pathogenic bacteria

      Olsen, John Elmerdahl, 1999. 3 p.

      Research output: Contribution to conference › Paper › Research

    89. Published

      Nye principper for navngivning af bakterier

      Christensen, Henrik, Olsen, John Elmerdahl & Bisgaard, M., 1999, In: Dansk Veterinærtidsskrift. 82, 4, p. 102-107 6 p.

      Research output: Contribution to journal › Journal article › Research

    90. Published

      Occurrence of the blaZ gene in penicillin resistant Staphylococcus aureus isolated from bovine mastitis in Denmark

      Vesterholm-Nielsen, M., Ølholm Larsen, M., Olsen, John Elmerdahl & Aarestrup, F. M., 1999, In: Acta Veterinaria Scandinavica (Print Edition). 40, 3, p. 279-286 8 p.

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

    91. Published

      Phage type conversion in Salmonella enterica serotype enteritidis caused by the introduction of a resistance plasmid of incompatibility group X (IncX)

      Brown, D. J., Lau Baggesen, D., Platt, D. J. & Olsen, John Elmerdahl, 1999, In: Epidemiology and Infection. 122, p. 19-22 4 p.

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

    92. Published

      Phenotypic characterization and antibiotic resistance of Acinetobacter spp. isolated from aquatic sources

      Guardabassi, Luca, Dalsgaard, Anders & Olsen, John Elmerdahl, 1999, In: Journal of Applied Microbiology. 87, p. 659-667 9 p.

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

    93. Published

      Population genetics of Salmonella

      Christensen, Henrik & Olsen, John Elmerdahl, 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    94. Published

      Rat dorsal root ganglia neurons as a model for Listeria monocytogenes infections in culture

      Dons, L., Weclewicz, K., Jin, Y., Bindseil, E., Olsen, John Elmerdahl & Kristensson, K., 1999, In: Medical Microbiology and Immunology. 188, p. 15-21 7 p.

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

    95. Published

      Risikofaktorer forbundet med forekomst af Salmonella enterica serovar Typhimurium hos slagtekyllinger i Danmark

      Skov, M. N., Angen, Ø., Chriél, M., Olsen, John Elmerdahl & Bisgaard, M., 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    96. Published

      Risk factors associated with Salmonella enterica serovar typhimurium infection in Danish broiler flocks

      Skov, M. N., Angen, Ø., Chriél, M., Olsen, John Elmerdahl & Bisgaard, M., 1999, In: Poultry Science. 78, p. 848-854 7 p.

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

    97. Published

      Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov., Mannheimia ruminalis sp. nov. and Mannheimia varigena sp. nov.

      Angen, Ø., Mutters, R., Caugant, D. A., Olsen, John Elmerdahl & Bisgaard, M., 1999, In: International Journal of Systematic and Evolutionary Microbiology. 49, p. 67-86 10 p.

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

    98. Published

      Udvikling og brug af modeller til studier af Salmonellas evne til at invadere i tarmen

      Olsen, John Elmerdahl, Aabo, S., Christensen, Jens Peter, Chadfield, M. S., Carstensen, B., Jensen, T. K. & Bisgaard, M., 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    99. 1998
    100. 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

    101. Published

      Antibiotic resistance in Acinetobacter spp. isolated from sewers receiving waste effluent from a hospital and a pharmaceutical plant

      Guardabassi, Luca, Petersen, A., Olsen, John Elmerdahl & Dalsgaard, Anders, 1998, In: Applied and Environmental Microbiology. 64, 9, p. 3499-3502 4 p.

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

    102. Published

      Antimicrobial resistance mechanism: entering the post-antimicrobial era?

      Olsen, John Elmerdahl, Chriél, M., Aalbæk, Bent & Dietz, Hans Henrik, 1998. 5 p.

      Research output: Contribution to conference › Paper › Research

    103. Published

      Diversity of lactic acid bacteria isolated from traditional Malaysian foods

      Leisner, Jørgen, Christensen, Henrik, Olsen, John Elmerdahl, Pot, B., Rusul, G., Wee, B. W., Muhamad, K. & Ghazali, H. M., 1998. 1 p.

      Research output: Contribution to conference › Paper › Research

    104. Published

      Phylogenetic relationships of Salmonella based on DNA sequence comparison of atpD encoding the beta subunit of ATP synthase

      Christensen, Henrik & Olsen, John Elmerdahl, 1998, In: FEMS Microbiology Letters. 161, p. 89-96 8 p.

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

    105. Published

      Phylogenetic relationships of Salmonella based on rRNA sequences

      Christensen, Henrik, Nordentoft, S. & Olsen, John Elmerdahl, 1998, In: International Journal of Systematic and Evolutionary Microbiology. 48, p. 605-610 6 p.

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

    106. Published

      Scavenging local chickens in Tanzania: is there room for improvement in productivity?

      Msoffe, P. L. M., Mtambo, M. M. A., Minga, U. M., Gwakisa, P. S., Katule, A. M., Mutayoba, S., Mdegela, R. H., Mwalusanya, N. A., Yongolo, M. G. S. & Olsen, John Elmerdahl, 1998, In: Tanzanian Veterinary Journal. 18, 4, p. 117-126 10 p.

      Research output: Contribution to journal › Journal article › Research

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    ID: 4236663