John Elmerdahl Olsen
Professor
Veterinary Clinical Microbiology
Stigbøjlen 4, 1870 Frederiksberg C
Member of:
- 1985
- Published
On the reduction of Mycobacterium paratuberculosis in bovine slurry subjected to batch mesophilic or thermophilic anaerobic digestion
Olsen, John Elmerdahl & Nansen, P., 1985, In: Agricultural Wastes. 13, 4, p. 273-280 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1987
- Published
Bacterial decimation times in anaerobic digestions of animal slurries
Olsen, John Elmerdahl, 1987, In: Biological Wastes. 21, 3, p. 153-168 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Inactivation of some parasites by anaerobic digestion of cattle slurry
Olsen, John Elmerdahl & Nansen, P., 1987, In: Biological Wastes. 22, 2, p. 107-114 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1988
- Published
Studies on the reduction of pathogenic and indicator bacteria in liquid pig manure treated by sedimentation and anaerobic filter digestion for methane generation
Olsen, John Elmerdahl, 1988, In: Biological Wastes. 24, 1, p. 17-26 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1990
- Published
Restriction fragment length polymorphism of the Vibrio anguillarum serovar 01 virulence plasmid
Olsen, John Elmerdahl, 1990, In: Applied and Environmental Microbiology. 56, 10, p. 3130-3132 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The prevalance of plasmids in Danish bovine and human isolates of Salmonella dublin
Olsen, John Elmerdahl, 1990, In: APMIS. 98, 8, p. 735-740 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Infectivity of Eggs of Taenia taeniaeformis after Anerobic Digestion of Sewage Sludge – A Possible Model for Taenia saginata Egg Resistance
Olsen, John Elmerdahl & Nansen, P., Sep 1990, In: Acta Veterinaria Scandinavica. 31, 3, p. 377-379 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1991
- Published
Isolation of a Salmonella-specific DNA hybridization probe
Olsen, John Elmerdahl, 1991, In: APMIS. 99, 2, p. 114-120 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Listeria monocytogenes Isolates can be classified into two major types assording to the sequence of the listeriolysin gene.
Rasmussen, O. F., Beck, T., Olsen, John Elmerdahl, Dons, L. & Rossen, L., 1991, In: Infection and Immunity. 1991, p. 3945 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Listeria monocytogenes isolates can be classified into two major types according to the sequence of the listeriolysin gene
Olsen, John Elmerdahl, Dons, L. & Rossen, L., 1991, In: Infection and Immunity. 59, 11, p. 3945-3951 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Occurrence of plasmids in Danish isolates of Vibrio anguillarum serovars O1 and O2 and association of plasmids with phenotypic characteristics
Olsen, John Elmerdahl, 1991, In: Applied and Environmental Microbiology. 57, 8, p. 2158-2163 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Plasmid profiles of Salmonella enterica serovar berta isolated from broilers in Denmark
Bisgaard, M. & Olsen, John Elmerdahl, Jul 1991, In: APMIS. 99, 7-12, p. 609-614 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Prevalence of antibiotic‐resistant Escherichia coli in Danish pigs and cattle
Aalbæk, Bent & Olsen, John Elmerdahl, Jul 1991, In: APMIS. 99, 7-12, p. 1103-1110 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 1992
- Published
Cloning and characteriza
Dons, L. E., Rasmussen, O. F. & Olsen, John Elmerdahl, 1992, In: Molecular Microbiology. (1992) 6 (20), p. 2919 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Salmonella enterica: Infection, Cross Infection and Persistence within the Environment of a Broiler Parent Stock Unit in Denmark
Brown, D. J., Olsen, John Elmerdahl & Bisgaard, M., 1992, In: Zentralblatt fur Bakteriologie. 277, 1, p. 129-138 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Plasmid profiles as an epidemiological marker in Salmonella enterica serovar berta infections: Comparison of isolates obtained from humans and poultry
Olsen, John Elmerdahl, BROWN, D. J., GAARSLEV, K. & BISGAARD, M., Jan 1992, In: APMIS. 100, 1-6, p. 221-228 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Biochemical and molecular characterization of Salmonella enterica serovar berta, and comparison of methods for typing
Olsen, John Elmerdahl & Bisgaard, M., Apr 1992, In: Epidemiology and Infection. 108, 2, p. 243-260 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Evaluation of a Salmonella‐specific DNA probe by colony hybridization using non‐isotopic and isotopic labeling
AABO, S., THOMAS, A., HALL, M. L. M., SMITH, H. R. & Olsen, John Elmerdahl, Jul 1992, In: APMIS. 100, 7-12, p. 623-628 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Characterization of Salmonella Enterica Serovar Gallinarum Biovars Gallinarum and Pullorum By Plasmid Profiling and Biochemical Analysis
Christensen, Jens Peter, Olsen, John Elmerdahl, Hansen, H. C. & Bisgaard, M., 1 Sep 1992, In: Avian Pathology. 21, 3, p. 461-470 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Cloning and characterization of a gene encoding flagellin of Listeria monocytogenes
Dons, L. & Olsen, John Elmerdahl, Oct 1992, In: Molecular Microbiology. 6, 20, p. 2919-2929 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Plasmid profiles and phage types of Salmonella typhimurium isolated from successive flocks of chickens on three parent stock farms
Baggesen, D. L., Olsen, John Elmerdahl & Bisgaard, M., 1 Dec 1992, In: Avian Pathology. 21, 4, p. 569-579 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1993
- Published
Ribotypes and plasmid contents of Vibrio anguillarum strains in relation to serovar
Olsen, John Elmerdahl & Larsen, J. L., 1993, In: Applied and Environmental Microbiology. 59, 11, p. 3863-3870 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Salmonella identification by the polymerase chain reaction
Aabo, S., Rasmussen, O. F., Roseen, L., Sørensen, P. D. & Olsen, John Elmerdahl, Jun 1993, In: Molecular and Cellular Probes. 7, 3, p. 171-178 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Bacterial typing methods suitable for epidemiological analysis. Applications in investigations of salmonellosis among livestock.
Olsen, John Elmerdahl, Brown, D. J., Skov, M. N. & Christensen, Jens Peter, Dec 1993, In: The Veterinary quarterly. 15, 4, p. 125-135 11 p.Research output: Contribution to journal › Review › Research › peer-review
- Published
Ribotypes of Salmonella enterica serovar Gallinarum biovars gallinarum and pullorum
Christensen, Jens Peter, Olsen, John Elmerdahl & Bisgaard, M., 1 Dec 1993, In: Avian Pathology. 22, 4, p. 725-738 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1994
- Published
Characterization of two putative Listeria monocytogenes encoding polypeptides homologous to the sensor protein CheA and the responce regulator CheY of chemotoxis
Dons, L. E., Olsen, John Elmerdahl & Rasmussen, O. F., 1994, In: The jounr. of Seguencing and Mapping. 4, p. 301 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Characterization of two putative listeria monocytogenes genes encoding polypeptides homologous to the sensor protein chea and the response regulator chey of chemotaxis
Dons, L., Olsen, John Elmerdahl & Rasmussen, O. F., 1994, In: DNA Sequence. 4, 5, p. 301-311 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Clonal lines of Salmonella enterica serotype Enteritidis documented by IS200-, ribo-, pulsed-field gel electrophoresis and RFLP typing
Olsen, John Elmerdahl, Skov, M. N., Threlfall, E. J. & Brown, D. J., 1994, In: Journal of Medical Microbiology. 40, 1, p. 15-22 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Ribotyping of Aeromonas salmonicida subsp. salmonicida
Nielsen, B., Olsen, John Elmerdahl & Larsen, J. L., 1994, In: Diseases of Aquatic Organisms. 18, 2, p. 155-158 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Specific detection of pathogenic yersinia enterocolitica by two-step pcr using hot-start and dmso
Rasmussen, H. N., Rasmussen, O. F., Andersen, J. K. & Olsen, John Elmerdahl, Apr 1994, In: Molecular and Cellular Probes. 8, 2, p. 99-108 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Genomic lineage of Salmonella enterica serovar Dublin
Olsen, John Elmerdahl & Skov, M., Jun 1994, In: Veterinary Microbiology. 40, 3-4, p. 271-282 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Stability of plasmids in five strains of Salmonella maintained in stab culture at different temperatures
Olsen, John Elmerdahl, Brown, D. J., Baggesen, D. L. & Bisgaard, M., Aug 1994, In: Journal of Applied Bacteriology. 77, 2, p. 155-159 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
RAPD analysis of Yersinia enterocolitica
Rasmussen, H. N., Olsen, John Elmerdahl & Rasmussen, O. F., Nov 1994, In: Letters in Applied Microbiology. 19, 5, p. 359-362 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1995
- Published
- Published
Antibiotikumresistente Escherichia coli i tarmfloraen hos danske svin og kalve i perioden 1970-1988
Aalbæk, Bent, Olsen, John Elmerdahl, Nielsen, B., Larsen, J. L., Sørensen, M., Errebo Larsen, H. & Rasmussen, J., 1995, In: Dansk Veterinærtidsskrift. 78, 20, p. 1026-1029 4 p.Research output: Contribution to journal › Journal article › Research
- Published
Characterization of non-virulence plasmids with homology to the virulence plasmid of Salmonella dublin
Aabo, S., Olsen, John Elmerdahl, Threlfall, E. J. & Brown, D. J., 1995, In: Research in Microbiology. 146, p. 751-759 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
DNA-probes and PCR for identification of Salmonella
Olsen, John Elmerdahl, Aabo, S. & Rossen, L., 1995, Southeast Asian journal of tropical medicine and public health. 26 ed. p. 222-224 3 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
Detection of Yersinia enterocolitica O:3 in faecal samples and tonsil swabs from pigs using IMS and PCR
Rasmussen, H. N., Rasmussen, O. F., Christensen, Henrik & Olsen, John Elmerdahl, 1995, In: Journal of Applied Bacteriology. 78, 5, p. 563-8Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Immune reaction of pigs following intra-gastric or ileal inoculation of attenuated Salmonella typhi
Loftager, M. K., Olsen, John Elmerdahl & Eriksen, L., 1995, In: Advances in Experimental Medicine and Biology. 371, B, p. 913-917 5 p.Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Listeria monocytogenes exists in at least three evolutionary lines: Evidence from flagellin, invasive associated protein and listeriolysin O genes
Rasmussen, O. F., Skouboe, P., Dons, L., Rosen, L. & Olsen, John Elmerdahl, 1995, In: Microbiology. 141, 9, p. 2053-2061 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Molecular methods for control of sources and routes of microbial infections
Olsen, John Elmerdahl, 1995, Meat quality and safety as affected by primary production. Møller, A. J., Mielche, M. M. & Barton-Gade, P. (eds.). p. 174-184 11 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
- Published
Prevalence of Salmonella in dry pelleted chicken manure samples obtained from shrimp farms in a major shrimp production area in Thailand
Dalsgaard, Anders & Olsen, John Elmerdahl, 1995, In: Suisanzoshoku. 136, p. 291-295 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
RFLP variation in Salmonella gallinarum virulence plasmids and the effect on virulence
Christensen, Jens Peter, Barrow, A. P., Olsen, John Elmerdahl, Brown, D. J. & Bisgaard, M., 1995, Southeast Asian journal of tropical medicine and public health. 26 ed. p. 160-162 3 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- Published
The ¤development of oligonucleotide probes and PCR methods specific for Salmonella or for S. serotype typhimurium and application to detection in naturally contaminated samples
Olsen, John Elmerdahl, Aabo, S. & Rossen, L., 1995, Southeast Asian journal of tropical medicine and public health. 26 ed. p. 92-98 7 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- Published
Oligonucleotide probes specific for the genus Salmonella and for Salm. typhimurium
Olsen, John Elmerdahl, Aabo, S., Rasmussen, O. F. & Rossen, L., Mar 1995, In: Letters in Applied Microbiology. 20, 3, p. 160-163 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Research note: Detection of Salmonella in minced meat by the polymerase chain reaction method
Aabo, S., Andersen, J. K. & Olsen, John Elmerdahl, Sep 1995, In: Letters in Applied Microbiology. 21, 3, p. 180-182 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Probes and polymerase chain reaction for detection of food-borne bacterial pathogens
Olsen, John Elmerdahl, Aabo, S., Hill, W., Notermans, S., Wernars, K., Granum, P. E., Popovic, T., Rasmussen, H. N. & Olsvik, Nov 1995, In: International Journal of Food Microbiology. 28, 1, p. 1-78 78 p.Research output: Contribution to journal › Review › Research › peer-review
- 1996
- Published
Correlation between viable counts of Salmonella Gallinarum in spleen and liver and the development of anaemia in chickens as seen in experimental fowl typhoid
Christensen, Jens Peter, Barrow, P. A., Olsen, John Elmerdahl, Dirch Poulsen, J. S. & Bisgaard, M., 1996, In: Avian Pathology. 25, p. 769-783 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 4236663
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The role of ClpP, RpoS and CsrA in growth and filament formation of Salmonella enterica serovar Typhimurium at low temperature
Research output: Contribution to journal › Journal article › Research › peer-review
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2245
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Identification of redundant metabolic pathways essential for virulence of Salmonella Typhimurium: Abstract book I3S International Symposium Salmonella and Salmonellosis, Saint-Malo, France
Research output: Contribution to conference › Conference abstract for conference › Research
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Adaptation of Salmonella Typhimurium to triclosan
Research output: Contribution to conference › Poster › Research
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