Henrik Christensen

Henrik Christensen

Associate Professor

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    ORCID: 0000-0003-4238-4658

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    1. 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

    2. Published

      Streptococinfektioner - en ny risikofaktor?

      Bisgaard, M. & Christensen, Henrik, 2010, In: Dansk Erhvervsfjerkrae. 39, 2, p. 96-98 3 p.

      Research output: Contribution to journal › Journal article › Research

    3. Published

      A new species of Neisseria associated with respiratory distress in turkeys

      Bisgaard, M., Behr, K. & Christensen, Henrik, 2007. 2 p.

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

    4. Published

      Streptococcus pluranimalium: a new avian pathogen

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

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

    5. Published

      Avibacterium endocarditidis sp. nov., isolated from valvular endocarditis in chickens

      Bisgaard, M., Christensen, Jens Peter, Bojesen, Anders Miki & Christensen, Henrik, 2007, In: International Journal of Systematic and Evolutionary Microbiology. 57, 8, p. 1729-1734 6 p.

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

    6. 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

    7. Published

      Experiences to be gained from longitudinal studies of cilinical and pathological observations of fowl cholera and MLST typing of Pasteurella multocida.

      Bisgaard, M., Petersen, A. H. H., Bojesen, Anders Miki, Christensen, Jens Peter & Christensen, Henrik, 2008, 7th international symposium on turkey diseases. Hafez, H. M. (ed.). Verlag der DVG Service, p. 123-132 10 p.

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

    8. Published

      Improved understanding of diseases asssociated with potential bacterial pathogens of poultry to be gained from multilocus sequence typing (MLST)

      Bisgaard, M., Olsen, Rikke Heidemann & Christensen, Henrik, 2010, European Poultry Conference. 4 p.

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

    9. Published

      Investigations on the existence of major phylogenetic lines within Pasteurella multocida as demonstrated by MSLA, rpoB sequencing and 16S rRNA based PCR

      Bisgaard, M., Petersen, A. H. H. & Christensen, Henrik, 2008.

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

    10. Published

      Horses, an overlooked risk factor for serious Streptococcus equi ssp. Zooepidemicus infections in free range chickens

      Bisgaard, M., Bojesen, Anders Miki, Petersen, M. R. & Christensen, Henrik, 2011, 17th World Veterinary Poultry Congress: proceedings. WVPA, p. 270-276 7 p.

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

    11. 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

    12. 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

    13. 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

    14. Published

      Unusual growth variants of Avibacterium paragallinarum

      Blackall, P. J., Christensen, Henrik & Bisgaard, M., 2011, In: Australian Veterinary Journal. 89, 7, p. 273-275 3 p.

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

    15. 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

    16. 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

    17. 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

    18. 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

    19. 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

    20. 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

    21. 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

    22. 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

    23. 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

    24. 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

    25. 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

    26. 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

    27. Published

      Whole Genome Sequencing (WGS) Analysis of Virulence and AMR Genes in Extended-Spectrum β-Lactamase (ESBL)-Producing Escherichia coli from Animal and Environmental Samples in Four Italian Swine Farms

      Bonvegna, M., Tomassone, L., Christensen, Henrik & Olsen, John Elmerdahl, 2022, In: Antibiotics. 11, 12, 1774.

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

    28. Published

      Revised taxonomy and nomenclature of rodent Pasteurellaceae: Implications for monitoring

      Boot, R., Nicklas, W. & Christensen, Henrik, 2018, In: Laboratory Animals. 52, 3, p. 300-303 4 p.

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

    29. Published

      One for two: A novel and highly sensitive virulence factor-based quantitative polymerase chain reaction assay for the simultaneous detection of Rodentibacter pneumotropicus and Rodentibacter heylii in environmental sample material

      Buchheister, S., Roegener, F., Zschemisch, N. H., Talbot, S. R., Christensen, Henrik & Bleich, A., 2020, In: Laboratory Animals. 54, 3, p. 239-250 12 p.

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

    30. Published

      Demonstration of antibiotic resistance genes strA, blaTEM, tetA, tetC and sul2 in Avibacterium paragallinarum

      Byarugaba, D. K., Minga, U. M., Gwakisa, P. S., Katunguka-Rwakishaya, E., Bisgaard, M., Christensen, Henrik & Olsen, John Elmerdahl, 2011, In: African Journal of Microbiology Research. 5, 22, p. 3624-3627 4 p.

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

    31. Published

      Genital form off pasteurellosis in breeding turkeys infected during artificial insemination and isolation off an unusual strain of Pasteurella multocida.

      Cariou, N., Christensen, Henrik, Salandre, O., Albaric, O., Bisgaard, M. & Malher, X., 2013, In: Avian Diseases. 57, 3, p. 693-697 5 p.

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

    32. Published

      Investigation on the Clonalkity of Streptococcus gallinaceous isolated from an outbreak of Septicaemia Associated with High Prevalence of endocarditis in a flock of broiler parents.

      Chadfield, M. S., Christensen, Jens Peter, Christensen, Henrik & Bisgaard, M., 2003. 1 p.

      Research output: Contribution to conference › Paper › Research

    33. Published

      Characterization and identification of enterococcal strains isolated from disease outbreaks in Broiler Flocks characterized by increased mortality due to septicaemia and Endocarditis and/or alterede production parameters

      Chadfield, M. S., Christensen, Jens Peter, Christensen, Henrik & Bisgaard, M., 2003. 1 p.

      Research output: Contribution to conference › Paper › Research

    34. 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

    35. 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

    36. 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

    37. Analysis of fluorescent pseudomonads based on 23S ribosomal DNA sequences

      Christensen, Henrik, Boye, M., Poulsen, L. K. & Rasmussen, O. F., 1994, In: Applied and Environmental Microbiology. 60, 6, p. 2196-9

      Research output: Contribution to journal › Letter › Research › peer-review

    38. Published

      Påvisning af salmonella populationer udfra ribosomale DNA sekvenser

      Christensen, Henrik & Olsen, John Elmerdahl, 1996. 1 p.

      Research output: Contribution to conference › Poster › Research

    39. 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

    40. 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

    41. Published

      Flow cytometric measurements of cell volumes and DNA contents during culture of indigenous soil bacteria

      Christensen, Henrik, Olsen, R. A. & Bakken, L. R., 1995, In: Microbial Ecology. 29, 1, p. 49-62

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

    42. 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

    43. Published

      Revised definition of Actinobacillus sensu stricto isolated from animals: a review with special emphasis on diagnosis

      Christensen, Henrik & Bisgaard, M., 2004, In: Veterinary Microbiology. 99, 1, p. 13-30 18 p.

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

    44. Published

      A manual of basic tools in bioinformatics

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

      Research output: Contribution to conference › Paper › Research

    45. 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

    46. Published

      Phylogenetic relations of Salmonella established by 23S rRNA gene sequence comparison

      Christensen, Henrik, Nordentoft, S. & Olsen, John Elmerdahl, 1997. 6 p.

      Research output: Contribution to conference › Paper › Research

    47. Published

      Counting and size classification of active soil bacteria by fluorescence in situ hybridization with an rRNA oligonucleotide probe

      Christensen, Henrik, Hansen, M. & Sørensen, Jan, 1999, In: Applied and Environmental Microbiology. 65, 4, p. 1753-1761 9 p.

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

    48. Published

      Population genetics of Salmonella

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

      Research output: Contribution to conference › Paper › Research

    49. 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

    50. 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

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    ID: 4224670