Jens Peter Christensen

Research output

Research output per year 1993 1996 1997 1999 2000 2001 2002 2003 2005 2007 2008 2009 2011 2012 2013 2015 2016 2017 2019 2020

• 133 Journal article
• 33 Paper
• 19 Conference abstract for conference
• 15 Article in proceedings
• 41 More
  • 12 Book chapter
  • 10 Conference abstract in proceedings
  • 8 Poster
  • 4 Report
  • 2 Book
  • 2 Ph.D. thesis
  • 1 Compendium/lecture notes
  • 1 Conference abstract in journal
  • 1 Contribution to newspaper - Feature article

Research output per year

Research output per year

Search results

• 2010

  Riemerella Anatipestifer infection: new duck disease, infectious serositis, pasteurella anatipestifer infection

  Christensen, J. P., 2010, The Merck veterinary manual. Kahn, C. M. & Line, S. (eds.). 10 ed. Merck & Co., Inc., p. 2463-2464 2 p.

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

• Space-time clustering of highly pathogenic avian influenza (HPAI) H5N1 outbreaks in Bangladesh

  Ahmed, S. S. U., Ersbøll, A. K., Biswas, P. K. & Christensen, J. P., Jun 2010, In: Epidemiology and Infection. 138, 6, p. 843-852 10 p.

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

  • Space-Time Clustering 100%
  • Influenza in Birds 68%
  • Bangladesh 66%
  • Disease Outbreaks 49%
  • Cluster Analysis 25%
  27 Citations (Scopus)
• 2009

  Årsager til kronisk, invaliderende ledforandringer (amyloid arthropati) hos konsumægsopdræt.

  Bisgaard, M., Christensen, J. P., Bojesen, A. M., Petersen, A. H. H. & Christensen, H., 2009, In: Dansk Erhvervsfjerkrae. 38, p. 489-493 5 p.

  Research output: Contribution to journal › Journal article › Communication

• Association of Streptococcus pluranimalium with valvular endocarditis and septicaemia in adult broiler parents

  Hedegaard, L., Christensen, H., Chadfield, M. S., Christensen, J. P. & Bisgaard, M., 2009, In: Avian Pathology. 38, 2, p. 155-160 6 p.

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

  25 Citations (Scopus)

• Der er altid en ny influenza på vej

  Dalsgaard, A. & Christensen, J. P., 2009, In: Helse. 5, p. 18-19 2 p.

  Research output: Contribution to journal › Journal article › Communication

  767 Downloads (Pure)

• Enteric and systemic bacterial diseases of chickens

  Christensen, J. P. & Bisgaard, M., 2009, Book of abstracts: XVIth World Veterinary Poultry Association Congress, Marrakesh, Morocco, 2009. World Veterinary Poultry Association, p. 45-56 12 p.

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

• Risk factors for infection with highly pathogenic influenza A virus (H5N1) in commercial chickens in Bangladesh

  Biswas, P. K., Christensen, J. P., Ahmed, S. S. U., Barua, H., Das, A., Rahman, M. H., Giasuddin, M., Hannan, A. S. M. A., Habib, A. M. & Debnath, N. C., 2009, In: Veterinary Record. 164, 24, p. 743-746 4 p.

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

• Risk factors for infection with highly pathogenic influenza A virus (H5N I) in commercial chickens in Bangladesh

  Biswas, P. K., Christensen, J. P., Ahmed, S. S. U., Barua, H., Das, A., Rahman, M. H., Giasuddin, M., Hannan, A. S. M. A., Habib, A. M. & Debnath, N. C., 13 Jun 2009, In: Veterinary Record. 164, 24, p. 743-746 4 p.

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

  • Bangladesh 100%
  • Farms 95%
  • Influenza A virus 92%
  • risk factors 82%
  • Chickens 81%
  27 Citations (Scopus)

• Risk for infection with highly pathogenic avian influenza virus (H5N1) in backyard chickens, Bangladesh

  Biswas, P. K., Christensen, J. P., Ahmed, S. S. U., Das, A., Rahman, M. H., Barua, H., Giasuddin, M., Hannan, A. S. M. A., Habib, M. A. & Debnath, N. C., 2009, In: Emerging Infectious Diseases (Print Edition). 15, 12, p. 1931-1936 6 p.

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

  64 Citations (Scopus)

• The Current Pandemic Threat: A brief overview of the current Pandmic (H1N1) 2009 and the pandemic threat from Avian Influenza (H5N1)

  Kryger, K. N., Christensen, J. P. & Thybo, S., 2009, DBL-Centre for Health Research and Development, University of Copenhagen.

  Research output: Book/Report › Report › Communication

• The current Pandemic Threat. A brief overview of the current pendemic threat from avian flu including health and veterinary aspects, economic cosequences and effect of prevention and control measures April 2009

  Kryger, K. N., Christensen, J. P. & Thybo, S., 2009, DBL-Centre for Health Research and Development, University of Copenhagen.

  Research output: Book/Report › Report › Communication
• 2008

  Avian influenza outbreaks in chickens, Bangladesh

  Biswas, P., Christensen, J. P., Ahmed, S., Barua, H., Das, A., Giasuddin, M., Hannan, A., Habib, M., Ahad, A., Rahman, A., Faruque, R. & Debnath, N., 2008, In: Emerging Infectious Diseases (Print Edition). 14, 12, p. 1909-1912 4 p.

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

  69 Citations (Scopus)

• Characterization of small-colony variants of Enterococcus faecalis isolated from chickens with amyloid arthropathy

  Petersen, A. H. H., Chadfield, M. S., Christensen, J. P., Christensen, H. & Bisgaard, M., 2008, In: Journal of Clinical Microbiology. 46, 8, p. 2686-2691 6 p.

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

  28 Citations (Scopus)

• Dyrlæger og høns i Bangladesh og Danmark

  Kyvsgaard, N. C., Christensen, J. P., Bisgaard, M., Bojesen, A. M. & Kryger, K. N., 2008, In: Dansk Veterinærtidsskrift. 91, 2, p. 12-13 2 p.

  Research output: Contribution to journal › Journal article › Research

• 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, A. M., Christensen, J. P. & Christensen, H., 2008, 7^th 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

• Field Observations and Experimental Studies on the Pathogenic Potential of Small Colony Variants of Pasteurella multocida

  Bisgaard, M., Petersen, A. H. H., Bojesen, A. M., Christensen, J. P. & Christensen, H., 2008. 1 p.

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

• Fowl cholera

  Christensen, J. P., Bojesen, A. M. & Bisgaard, M., 2008, Poultry diseases. Pattison, M., McMullin, P. F., Bradbury, J. M. & Alexander, D. J. (eds.). 6 ed. Elsevier, p. 149-154 6 p.

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

• Fowl cholera

  Glisson, J. R., Hofacre, C. L. & Christensen, J. P., 2008, Diseases of poultry. Saif, Y. M. & Fadly, A. M. (eds.). 12 ed. Ames: Blackwell Publishing, p. 739-758 20 p.

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

• Gallibacterium infections and other avian Pasteurellaceae: chapter 12

  Bojesen, A. M., Christensen, J. P. & Bisgaard, M., 2008, Poultry diseases. Pattison, M., McMullin, P. F., Bradbury, J. M. & Alexander, D. J. (eds.). 6 ed. Elsevier, p. 160-163 4 p.

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

• Infections caused by species of Pasteurellaceae, Ornithobacterium and Riemerella: an introduction : chapter 9

  Bisgaard, M., Bojesen, A. M. & Christensen, J. P., 2008, Poultry diseases. Pattison, M., McMullin, P. F., Bradbury, J. M. & Alexander, D. J. (eds.). 6 ed. Elsevier, p. 146-148 3 p.

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

• Infections caused by species of Pasteurellaceae, Ornithobacterium and Riemerella: An introduction

  Bisgaard, M., Bojesen, A. M. & Christensen, J. P., 1 Dec 2008, Poultry Diseases. Elsevier Ltd, p. 146-148 3 p.

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

  9 Citations (Scopus)

• Riemerella infections: chapter 14

  Bisgaard, M., Bojesen, A. M. & Christensen, J. P., 2008, Poultry diseases. Pattison, M., McMullin, P. F., Bradbury, J. M. & Alexander, D. J. (eds.). 6 ed. Elsevier, p. 172-175 4 p.

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

• The current pandemic threat: a brief overview of the current pandemic threat from avian flu including health and veterinary aspects, economic consequences and effect of prevention and control measures

  Kryger, K. N., Christensen, J. P. & Thybo, S., 2008, Museum Tusculanum. 34 p.

  Research output: Book/Report › Report › Research
• 2007

  Aktuelle fjerkræsygdomme hos udegående høns: tema

  Kyvsgaard, N. C., Christensen, J. P., Bojesen, A. M. & Bisgaard, M., 2007, In: Aktuel Økologi. 4, p. 21-32 12 p.

  Research output: Contribution to journal › Journal article › Communication

• Association of base line serum concentration of mannan-binding lectin (MBL) with experimental Pasteurella multocida infection in two chicken breeds

  Schou, T. W., Permin, A., Cu, H. P., Juul-Madsen, H. R. & Christensen, J. P., 2007. 1 p.

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

• Avian Enterococci and Streptococci: new or old emerging pathogens representing major diagnostic problems

  Christensen, H., Chadfield, M. S., Christensen, J. P. & Bisgaard, M., 2007. 1 p.

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

• Avian influenza eradication and control programmes under industrialized and village conditions and research needs for improvement

  Christensen, J. P. & Phuong, D. Q., 2007, In: Bulletin of Animal Health and Production in Africa. p. 61-68 8 p.

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

• Avibacterium endocarditidis sp. nov., a new species of Pasteurellaceae isolated form valvular endocarditis in chickens

  Bisgaard, M., Christensen, J. P., Bojesen, A. M. & Christensen, H., 2007. 1 p.

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

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

  Bisgaard, M., Christensen, J. P., Bojesen, A. M. & Christensen, H., 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

  21 Citations (Scopus)

• Effects of crp deletion in Salmonella enterica serotype Gallinarum

  Rosu, V., Chadfield, M. S., Santona, A., Christensen, J. P., Thomsen, L. E., Rubino, S. & Olsen, J. E., 2007, In: Acta Veterinaria Scandinavica (Print Edition). 49, 14, 7 p.

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

  25 Citations (Scopus)

  341 Downloads (Pure)

• 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, H., Christensen, J. P. & Chadfield, M. S., 2007. 1 p.

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

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

  Chadfield, M. S., Christensen, J. P., Decostere, A., Christensen, H. & 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

  21 Citations (Scopus)

• Haemorrhagic septicaemia type B associated outbreak of fowl cholera in turkeys

  Bisgaard, M., Petersen, A., Bojesen, A. M., Christensen, J. P. & Christensen, H., 2007. 1 p.

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

• Longitudinal studies on causes of mortality in free-range chickens in Denmark

  Christensen, J. P., Bisgaard, M., Stokholm, N. M. & Permin, A., 2007. 1 p.

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

• Streptococcus pluranimalium: a new avian pathogen

  Bisgaard, M., Hedegaard, L., Chadfield, M. S., Christensen, J. P. & Christensen, H., 2007. 1 p.

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

• Study of the origin and spread of highly pathogenic avian influenza outbreaks in Bangladesh: first interim report

  Biswas, P. K., Christensen, J. P., Ahmed, S. S. U., Barua, H., Giasuddin, Hannan, A. S. M. A., Habib, A., Ahad, A., Rahman, A. S. M. S. & Faruque, R., 2007, Bangladesh: Chittagong Veterinary and Animal Science University. 34 p.

  Research output: Book/Report › Report › Communication

• The biological and molecular effects of passage of H5N1 avian influenza virus in common mallard ducks and chickens

  Phuong, D. Q., Christensen, J. P., Nguyen, D. T. & Jørgensen, P. H., 2007. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research
• 2006

  Clonal stability of Pasteurella multocida in free-range layers affected by fowl cholera

  Stokholm, N. M., Permin, A., Christensen, J. P., Bojesen, A. M. & Bisgaard, M., 2006, In: Avian Pathology. 35, 2, p. 165-172 8 p.

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

  9 Citations (Scopus)

• Consequences of concurrent Ascaridia galli and Escherichia coli infections in chickens

  Permin, A., Christensen, J. P. & Bisgaard, M., 2006, In: Acta Veterinaria Scandinavica (Print Edition). 47, 1, p. 43-54 6 p.

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

  43 Citations (Scopus)

• Infection and excretion of Salmonella enteritidis in two different chicken lines with concurrent Ascaridia galli infection

  Eigaard, N. M., Schou, T. W., Permin, A., Christensen, J. P., Ekstrøm, C. T., Ambrosini, F., Cianci, D. & Bisgaard, M., 2006, In: Avian Pathology. 35, 6, p. 487-493 7 p.

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

  25 Citations (Scopus)

• Molecular epidemiology of Escherichia coli in organic egg layer flocks

  Agger, J. F. G., Lawson, L., Chadfield, M. S. & Christensen, J. P., 2006. 1 p.

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

• Skrækkampagne på fattiges bekostning

  Riise, J. C., Dolberg, F. & Christensen, J. P., 2006, In: Politiken. 3. sektion, p. 1 1 p.

  Research output: Contribution to journal › Contribution to newspaper - Feature article

• The gastrointestinal tract as a port of entry for bacterial infections in poultry

  Christensen, J. P., Chadfield, M. S., Olsen, J. E. & Bisgaard, M., 20 Dec 2006, Avian Gut Function in Health and Disease. CABI Publishing, Vol. 28. p. 244-258 15 p.

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

  • bacterial infections 100%
  • gastrointestinal system 86%
  • poultry 77%
  • chickens 62%
  • endocarditis 51%
  1 Citation (Scopus)

• Vertical transmission of a fluoroquinolone-resistant Escherichia coli within an intergrated broiler operation

  Petersen, A., Christensen, J. P., Kuhnert, P., Bisgaard, M. & Olsen, J. E., 2006, In: Veterinary Microbiology. 116, 1-3, p. 120-128 8 p.

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

  59 Citations (Scopus)
• 2005

  Avian infections caused by species of Pasteurellaceae, an update

  Bisgaard, M., Christensen, H., Bojesen, A. M. & Christensen, J. P., 2005, Final program & abstract book. p. 110-117 8 p.

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

• 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, J. P., Juhl-Hansen, J., Christensen, H. & Bisgaard, M., 2005, In: Avian Diseases. 49, 1, p. 16-23 8 p.

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

  32 Citations (Scopus)

• Effect of carrots and maize silage on colonization of hens by Ascaridia galli and Salmonella enterica serovar Enteritidis

  Idi, A., Permin, A., Christensen, J. P., Steenfeldt, S., Engberg, R. M. & Fink, M., 2005, In: Helminthologia. 42, 3, p. 121-131 11 p.

  Research output: Contribution to journal › Journal article › Research

  3 Citations (Scopus)

• H5 avian influenza antibodies in rural poultry of Thai-Binh province - Vietnam

  Phuong, D. Q., Dung, N. T. & Christensen, J. P., 2005. 1 p.

  Research output: Contribution to conference › Poster › Research

• Investigations on clonality and stability of clones of Erysipelothrix rhusiopathiae in turkeys and free range layers flocks affected by erysipelas

  Købke, B., Eigaard, N. M., Christensen, J. P. & Bisgaard, M., 2005, Final program & abstract book. p. 1 1 p.

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

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

  Bisgaard, M., Christensen, H., Behr, K-P., Baron, G. & Christensen, J. P., 2005, In: Avian Pathology. 34, 2, p. 106-110 5 p.

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

  5 Citations (Scopus)