Henrik Christensen

Henrik Christensen

Associate Professor

Member of:

    ORCID: 0000-0003-4238-4658

    Publication year:
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    251 - 300 out of 382Page size: 50
    1. 2007
    2. Published

      Comparison of Sul2 resistant gene from Escherichia coli isolated from animals and humans

      Porro, M. T., Hammerum, A. M., Sunde, M., Pedersen, K., Agersø, Y., Christensen, Henrik & Olsen, John Elmerdahl, 2007, Ikke angivet. ASM, 1 p.

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

    3. Published

      Emended description of Actinobacillus capsulatus Arseculeratne 1962, 38AL

      Kuhnert, P., Korczak, B., Christensen, Henrik & Bisgaard, M., 2007, In: International Journal of Systematic and Evolutionary Microbiology. 57, p. 625-632 8 p.

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

    4. Published

      Evidence for vertical inheritance and loss of the leukotoxin operon in genus Mannheimia

      Larsen, J., Pedersen, A. G., Christensen, Henrik, Bisgaard, M., Angen, Ø., Ahrens, P. & Olsen, John Elmerdahl, 2007, In: Journal of Molecular Evolution. 64, 4, p. 423-437 15 p.

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

    5. Published

      Five new species of Gallibacterum - a diagnostic enigma

      Christensen, Henrik, Korczak, B. M., Kuhnert, P., Busse, H., Bojesen, Anders Miki & Bisgaard, M., 2007. 1 p.

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

    6. Published

      Further Investigations on the involvement of taxon 14 in upper respiratory tract infections and blepharoconjunctivitis in turkeys

      Bisgaard, M., Günther, R. & Christensen, Henrik, 2007. 2 p.

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

    7. Published

      Genetic diversity and persistance of Enterococcus faecalis obtained from different pathological lesiones in adult chickens as demonstrated by PFGE and MLST

      Bisgaard, M., Hedegaard, L., Petersen, A., Christensen, Henrik, Christensen, Jens Peter & Chadfield, M. S., 2007. 1 p.

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

    8. Published

      Geno- and phenotypic diversity of avian isolates of Streptococcus gallolyticus subsp. gallolyticus (Streptococcus bovis) and associated diagnostic problems

      Chadfield, M. S., Christensen, Jens Peter, Decostere, A., Christensen, Henrik & Bisgaard, M., 2007, In: Journal of Clinical Microbiology. 45, 3, p. 822-827 6 p.

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

    9. Published

      Haemorrhagic septicaemia type B associated outbreak of fowl cholera in turkeys

      Bisgaard, M., Petersen, A., Bojesen, Anders Miki, Christensen, Jens Peter & Christensen, Henrik, 2007. 1 p.

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

    10. Published

      Host-specific bacterial lineages in the taxon 2 and 3 complex of Pasteurellaceae

      Bojesen, Anders Miki, Christensen, Henrik, Nielsen, Søren Saxmose & Bisgaard, M., 2007, In: Systematic and Applied Microbiology. 30, 2, p. 119-127 9 p.

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

    11. Published

      Influence of the ionophore salinomycin on detection of Clostridium perfringens by PCR in DNA extracted from the gastro intestinal tract of chickens

      Henriksen, M. M. M., Bisgaard, M. & Christensen, Henrik, 2007. 1 p.

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

    12. Published

      Investigations on the existence of a global clone of Enterococcus faecalis associated with amyloid arthropathy in chickens

      Petersen, A., Christensen, Henrik & Bisgaard, M., 2007, . p. 254 1 p.

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

    13. Published

      New V-factor requiring species/taxa of Pasteurellaceae obtained from lesions in different species of birds

      Christensen, Henrik, Blackall, P. & Bisgaard, M., 2007, Ikke angivet. WVPA, p. 246 1 p.

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

    14. Published

      Population structure of Pasteurella multocida epizotics in the avifaunain Scandinavia and possible relationship with P1059 as demonstrated my MLST

      Bisgaard, M., Petersen, A. & Christensen, Henrik, 2007, Ikke angivet. WVPA, p. 248 1 p.

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

    15. Published

      Presence and diversity of ß-lactamase gene in cat and dog staphylococci

      Malik, S., Christensen, Henrik, Peng, H. & Barton, M. D., 2007, In: Veterinary Microbiology. 123, 1-3, p. 162-168 7 p.

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

    16. Published

      Prevalence and genetic characterization of Pasteurellaceae isolated from captive psittacine birds

      Bertelsen, M. F., Bojesen, Anders Miki, Christensen, Henrik & Bisgaard, M., 2007. 1 p.

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

    17. Published

      Proposed minimal standards for the description of genera, species and subspecies of Pasteurellaceae

      Christensen, Henrik, Kuhnert, P., Busse, H., Frederiksen, W. C. & Bisgaard, M., 2007, In: International Journal of Systematic and Evolutionary Microbiology. 57, 1, p. 166-178 13 p.

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

    18. Published

      Reclassification of [Pasteurella] trehalosi as Bibersteinia trehalosi gen. nov., comb. nov.

      Blackall, P. J., Bojesen, Anders Miki, Christensen, Henrik & Bisgaard, M., 2007, In: International Journal of Systematic and Evolutionary Microbiology. 57, p. 666-674 9 p.

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

    19. Published

      Specific identification of Gallibacterium by a PCR using primers targeting the 16S rRNA and 23S rRNA genes

      Bojesen, Anders Miki, Vazquez, M. E., Robles, F., Gonzalez, C., Soriano, E., Olsen, John Elmerdahl & Christensen, Henrik, 2007, In: Veterinary Microbiology. 123, 1-3, p. 262-268 7 p.

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

    20. 2006
    21. Published

      A preliminary study of the role of ducks in the transmission of Newcastle disease virus to in-contact rural free-range chickens.

      Christensen, Henrik, 2006, In: Tropical Animal Health and Production. 38, 4, p. 285-289 5 p.

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

    22. Published

      Distribution of RTX toxin genes in strains of [Actinobacillus] rossii and [Pasteurella] mairii

      Mayor, D., Korczak, B. M., Christensen, Henrik, Bisgaard, M., Frey, J. & Kuhnert, P., 2006, In: Veterinary Microbiology. 116, 1-3, p. 194-201 8 p.

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

    23. Published

      Diversity and evolution of blaZ from Staphylococcus aureus and coagulase-negative staphylococci

      Olsen, John Elmerdahl, Christensen, Henrik & Aarestrup, F. M., 2006, In: Journal of Antimicrobial Chemotherapy. 57, 3, p. 450-460 11 p.

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

    24. Published

      Fluoroscence in situ hybridization of chicken intestinal samples with bacterial rRNA targeted oligonucleotide probes

      Olsen, K. N., Francesch, M. & Christensen, Henrik, 2006, Ikke angivet. Romboli, I., Flock, D. & Franchini, A. (eds.). World's Poultry Science Association, 6 p. (World's Poultry Science Journal; No. Suppl.).

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

    25. Published

      Occurrence of haemolytic Mannheimia spp. in apparently healthy sheep in Norway

      Poulsen, L. L., Reinert, T. M., Sand, R. L., Bisgaard, M., Christensen, Henrik, Olsen, John Elmerdahl, Stuen, S. & Bojesen, Anders Miki, 2006, In: Acta Veterinaria Scandinavica (Print Edition). 48, 19, 7 p.

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

    26. Published

      The Genus Pasteurella

      Christensen, Henrik & Bisgaard, M., 2006, The Prokaryotes: A Handbook on the Biology of Bacteria. Dworkin, M., Falkow, S., Rosenberg, E., Schleifer, K-H. & Strackebrandt, E. (eds.). 3 ed. New York: Kluwer Academic Publishers, Vol. 6. p. 1062-1090 29 p.

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

    27. Published

      [Pasteurella] caballi infection not limited to horses - a closer look at taxon 42 of Bisgaard

      Christensen, Henrik, Hommez, J., Olsen, John Elmerdahl & Bisgaard, M., 2006, In: Letters in Applied Microbiology. 43, 4, p. 424-429 6 p.

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

    28. 2005
    29. Published

      Aflatoxicosis, infectious bursal disease and immune response to Newcastle disease vaccination in rural chickens

      Otim, M. O., Mukiibi-Muka, G., Christensen, Henrik & Bisgaard, M., 2005, In: Avian Pathology. 34, 4, p. 319-323 5 p.

      Research output: Contribution to journal › Journal article › Research

    30. Published

      Avian infections caused by species of Pasteurellaceae, an update

      Bisgaard, M., Christensen, Henrik, Bojesen, Anders Miki & Christensen, Jens Peter, 2005, Final program & abstract book. p. 110-117 8 p.

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

    31. Published

      Characterization of Enterococcus hirae outbreaks in broiler flocks demonstrating increased mortality because of septicemia and endocarditis and/or altered production parameters

      Chadfield, M. S., Christensen, Jens Peter, Juhl-Hansen, J., Christensen, Henrik & Bisgaard, M., 2005, In: Avian Diseases. 49, 1, p. 16-23 8 p.

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

    32. Published

      Characterization of sucrose-negative Pasteurella multocida variants, including isolates from large-cat bite wounds

      Christensen, Henrik, Bisgaard, M., Angen, Ø., Frederiksen, W. & Olsen, John Elmerdahl, 2005, In: Journal of Clinical Microbiology. 43, 1, p. 259-270 12 p.

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

    33. Published

      Classification and description of four new taxa of Pasteurellaceae associated with Muridae and proposal of a new genus Muribacterium gen. nov: B24

      Christensen, Henrik, Kubnert, P., Korczak, B. M., Fink, M. & Bisgaard, M., 2005. 1 p.

      Research output: Contribution to conference › Poster › Research

    34. Published

      Classification and description of new taxa of Pasteurellaceae associated with Maridae and proposal of new genus Muribacterium gen. nov: B-1314

      Christensen, Henrik, Bisgaard, M., Fink, M. & Olsen, John Elmerdahl, 2005, Abstracts of the 11. international congress of bacteriology and applied microbiology. IUMS, p. 70 1 p.

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

    35. Published

      Classification of Taxon 2 and 3 of Bisgaard with Pasteurellaceae: A23

      Christensen, Henrik, Kubner, P., Bojesen, Anders Miki, Busse, H. & Bisgaard, M., 2005, Pasteurellaceae 2005. American Society of Microbiology, p. 1 1 p.

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

    36. Published

      Clusters of the Bisgaard taxon 2 and 3 complex demonstrate host specificity

      Bojesen, Anders Miki, Bisgaard, M. & Christensen, Henrik, 2005, Final program & abstract book. p. 416 1 p.

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

    37. Published

      Emended description of porcine [Pasteurella] aerogenes, [Pasteurella] mairii and [Actinobacillus] rossii

      Christensen, Henrik, Kuhnert, P., Bisgaard, M., Mutters, R., Dziva, F. & Olsen, John Elmerdahl, 2005, In: International Journal of Systematic and Evolutionary Microbiology. 55, p. 209-223 17 p.

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

    38. Published

      Evolution of Leukotoxin Regulatory regions in Genus Mannheimia by Interspecies Comparisons

      Larsen, J., Pedersen, A. G., de Lichtenberg, U., Christensen, Henrik, Olsen, John Elmerdahl, Kuhnert, P. & Frey, J., 2005.

      Research output: Contribution to conference › Poster › Research

    39. Published

      Evolution of leukotoxin regulatory regions in genus Mannheimia

      Larsen, J., Pedersen, A. G., Christensen, Henrik, Olsen, John Elmerdahl, Davies, R. L., Kubnert, P. & Frey, J., 2005. 1 p.

      Research output: Contribution to conference › Poster › Research

    40. Published

      Evolution of the Leukotoxin Operon in Genus Mannheimia

      Larsen, J., Pedersen, A. G., Christensen, Henrik, Bisgaard, M., Angen, Ø., Ahrens, P. & Olsen, John Elmerdahl, 2005. 2 p.

      Research output: Contribution to conference › Poster › Research

    41. Published

      Genus I. Pasteurella

      Mutters, R., Christensen, Henrik & Bisgaard, M., 2005, Bergey's manual of systemativ bacteriology. Brenner, D. J., Krieg, N. R. & Staley, J. T. (eds.). Kluwer Academic Publishers, Vol. 2, part B. p. 857-866 10 p.

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

    42. Published

      Host specific bacterial lineages of the taxon 2 and 3 complex of Pasteurellaceae demonstrated by amplified fragment lenght polymorphism

      Bojesen, Anders Miki, Christensen, Henrik & Bisgaard, M., 2005. 2 p.

      Research output: Contribution to conference › Poster › Research

    43. Published

      Identification of host-specific subclones within Mannheimia varigena

      Bojesen, Anders Miki, Bisgaard, M. & Christensen, Henrik, 2005. 1 p.

      Research output: Contribution to conference › Poster › Research

    44. Published

      Investigations on the clonality of isolates of Pasteurella gallinarum obtained from turkeys in Germany

      Bisgaard, M., Christensen, Henrik, Behr, K., Baron, G. & Christensen, Jens Peter, 2005, In: Avian Pathology. 34, 2, p. 106-110 5 p.

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

    45. Published

      Involvement of bacterial quorum-sensing signals in spoilage of bean sprouts

      Rasch, M., Andersen, Jens Bo, Nielsen, K. F., Flodgaard, L. R., Christensen, Henrik, Givskov, Michael & Gram, L., 2005, In: Applied and Environmental Microbiology. 71, 6, p. 3321-30 9 p.

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

    46. Published

      Navngivning af sygdomsfremkaldende bakterier

      Christensen, Henrik, Bisgaard, M., Christensen, Jens Peter & Olsen, John Elmerdahl, 2005, In: Naturens Verden. 2, p. 32-39 8 p.

      Research output: Contribution to journal › Journal article › Communication

    47. Published

      Proposal for reclassification of Pasteurella Trehalosi at genus level based on phenotypic and genetic comparisons

      Blackall, P. J., Bojesen, Anders Miki, Christensen, Henrik & Bisgaard, M., 2005. 1 p.

      Research output: Contribution to conference › Poster › Research

    48. Published

      Reclassification of Pasteurella gallinarum, [Haemophilus] paragallinarum, Pasteurella avium and Pasteurella volantium as Avibacterium gallinarum gen. nov., comb. nov., Avibacterium paragallinarum comb. nov., Avibacterium avium comb. nov. and Avibacterirum volantium comb. nov.

      Blackall, P. J., Christensen, Henrik, Beckenham, T., Blackall, L. L. & Bisgaard, M., 2005, In: International Journal of Systematic and Evolutionary Microbiology. 55, p. 353-362 10 p.

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

    49. Published

      Systematics of selected members of the bacterial family Pasteurellaceae Pohl 1981 associated with animals

      Christensen, Henrik, 2005, Copenhagen: Center for Skov, Landskab og Planlægning/Københavns Universitet. 167 p.

      Research output: Book/Report › Doctoral thesis › Research

    50. Published

      Taxonomy of Pasteurellaceae: an update B18

      Christensen, Henrik, Kubnert, P., Olsen, John Elmerdahl & Bisgaard, M., 2005, Pasteurellaceae 2005. American Society of Microbiology, p. 1 1 p.

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

    51. Published

      The current state of Pasteurellaceae systematics

      Olsen, John Elmerdahl, Bisgaard, M., Kubnert, P. & Christensen, Henrik, 2005, Pasteurellaceae 2005. American Society of Microbiology, p. 14 1 p.

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

    52. 2004
    53. Published

      Characterization of streptococci and enterococci associated with septicaemia in broiler parents with a high prevalence of endocarditis

      Chadfield, M. S., Christensen, Jens Peter, Christensen, Henrik & Bisgaard, M., 2004, In: Avian Pathology. 33, 6, p. 610-617 8 p.

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

    54. Published

      Comparative phylogenies of the housekeeping genes atpD, infB and rpoB and the 16S rRNA gene within the Pasteurellaceae

      Christensen, Henrik, Kuhnert, P., Olsen, John Elmerdahl & Bisgaard, M., 2004, In: International Journal of Systematic and Evolutionary Microbiology. 54, p. 1601-1609 9 p.

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

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