Lars Erik Larsen

Lars Erik Larsen

Professor

ORCID: 0000-0003-0730-5555

Publication year:
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1 - 100 out of 144Page size: 100
  1. 2024
  2. Published

    Kan man forudsige fugleinfluenza i Danmark? Kan man forudsige fugleinfluenza i Danmark?

    Kjær, Lene Jung, Boklund, Anette, Hjulsager, C. K., Larsen, Lars & Kirkeby, Carsten, 22 Feb 2024, In: videnskab.dk.

    Research output: Contribution to journal › Journal article › Communication

  3. Published

    Are all avian influenza outbreaks in poultry the same? The predicted impact of poultry species and virus subtype

    Kirkeby, Carsten, Boklund, Anette, Larsen, Lars & Ward, M. P., 16 Feb 2024, In: Zoonoses and Public Health.

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

  4. Published

    Risk factors for avian influenza in Danish poultry and wild birds during the epidemic from June 2020 to May 2021

    Liu, Yangfan, Kjær, Lene Jung, Boklund, Anette, Hjulsager, C. K., Larsen, Lars & Kirkeby, Carsten, Feb 2024, In: Frontiers in Veterinary Science. 11

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

  5. Published

    Bacillus subtilis-597 induces changes in lung pathology and inflammation during influenza A virus infection in pigs

    Winther, K., Kristensen, Charlotte, Henriksen, B. L., Hansen, L. H. B., Ryt-Hansen, Pia, Vestergaard, G., Skovgaard, K., Sandvang, D., Boll, E. J., Williams, Andrew Richard & Larsen, Lars, 2024, In: Veterinary Microbiology. 291, 12 p., 110032.

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

  6. Accepted/In press

    Are all avian influenza outbreaks in poultry the same? The predicted impact of poultry species and virus subtype

    Kirkeby, Carsten, Boklund, Anette, Larsen, Lars & Ward, M. P., 2024, (Accepted/In press) In: Zoonoses and Public Health.

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

  7. Published

    The avian influenza A virus receptor SA-α2,3-Gal is expressed in the porcine nasal mucosa sustaining the pig as a mixing vessel for new influenza viruses

    Kristensen, Charlotte, Larsen, Lars, Trebbien, R. & Jensen, Henrik Elvang, 2024, In: Virus Research. 340, 8 p., 199304.

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

  8. Published

    Transmission dynamics and pathogenesis differ between pheasants and partridges infected with clade 2.3.4.4b H5N8 and H5N1 high-pathogenicity avian influenza viruses

    Seekings, A. H., Liang, Yuan, Warren, C. J., Hjulsager, C. K., Thomas, S. S., Lean, F. Z. X., Nunez, A., Skinner, P., Selden, D., Falchieri, M., Simmons, H., Brown, I. H., Larsen, Lars, Banyard, A. C. & Slomka, M. J., 2024, In: The Journal of general virology. 105, 1, 15 p.

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

  9. 2023
  10. Published

    An observational field study of porcine post-weaning diarrhea: clinical and microbiological findings, and fecal pH-measurements as a potential diagnostic tool

    Eriksen, E. Ø., Kudirkiene, E., Barington, Kristiane, Goecke, Nicole Bakkegård, Blirup-Plum, Sophie Amalie, Nielsen, Jens Peter, Olsen, John Elmerdahl, Jensen, Henrik Elvang, Pankoke, K., Larsen, Lars, Liu, G. & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 33.

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

  11. Published

    Characterization of high pathogenicity avian influenza H5Nx viruses from a wild harbor seal and red foxes in Denmark, 2021 and 2022: Characterization of high pathogenicity avian influenza H5Nx viruses from a wild harbor seal and red foxes in Denmark, 2021 and 2022

    Liang, Yuan, Hjulsager, C. K., Jensen, Tim Kåre, Hammer, Anne Sofie Vedsted, Ovesen, Maibritt Træholt & Larsen, Lars, 2023, In: Influenza and other Respiratory Viruses. 17, 10, 10 p., e13208.

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

  12. Published

    Co-localization of influenza A virus and voltage-dependent calcium channels provides new perspectives on the internalization process in pigs

    Kristensen, Charlotte, Jensen, Henrik Elvang, Trebbien, R., Ryt-Hansen, Pia & Larsen, Lars, 2023, In: npj Viruses. 1, 7 p., 8.

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

  13. Published

    Discovery of the avian receptor in the porcine nasal mucosa reveals new insight into influenza A virus host tropsim

    Kristensen, Charlotte, Larsen, Lars, Trebbien, R. & Jensen, Henrik Elvang, 2023. 1 p.

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

  14. Published

    Experimental infection of pigs and ferrets with "pre-pandemic," human-adapted, and swineadapted variants of the H1N1pdm09 influenza A virus reveals significant differences in viral dynamics and pathological manifestations

    Kristensen, Charlotte, Laybourn, H. A., Crumpton, J. C., Martiny, Karen, Webb, A., Ryt-Hansen, Pia, Trebbien, R., Jensen, Henrik Elvang, Nissen, Jakob Nybo, Skovgaard, K., Webby, R. J. & Larsen, Lars, 2023, In: PLoS Pathogens. 19, 12, 23 p., e1011838.

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

  15. Published

    Gastro-intestinal lesions are not relatable to diarrhoea or specific pathogens in post-weaning diarrhoea (PWD) in pigs

    Blirup-Plum, Sophie Amalie, Jensen, Henrik Elvang, Nielsen, Søren Saxmose, Pankoke, K., Hansen, Mette Sif, Pedersen, Ken Steen, Eriksen, E. Ø., Nielsen, Jens Peter, Olsen, John Elmerdahl, Kudirkiene, E., Larsen, Lars, Goecke, Nicole Bakkegård & Barington, Kristiane, 2023, In: Acta Veterinaria Scandinavica. 65, p. 1-18 18 p., 30.

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

  16. Published

    Immunogenicity of Bacillus Calmette-Guérin in pigs: potential as a translational model of non-specific effects of BCG

    Jensen, K. J., Hansen, Mette Sif, Skovgaard, K., Svensson, E., Larsen, Lars, Heegaard, P. M. H., Benn, C. S. & Jungersen, G., 2023, In: Frontiers in Immunology. 14, 1219006.

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

  17. Published

    Lesions and pathogens found in pigs that died during the nursery period in five Danish farms

    Barington, Kristiane, Eriksen, E. Ø., Kudirkiene, E., Pankoke, K., Hartmann, Katrine Top, Hansen, Mette Sif, Jensen, Henrik Elvang, Blirup-Plum, Sophie Amalie, Jørgensen, B. M., Nielsen, Jens Peter, Olsen, John Elmerdahl, Goecke, Nicole Bakkegård, Larsen, Lars & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 26.

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

  18. Published

    Using surveillance data for early warning modelling of highly pathogenic avian influenza in Europe reveals a seasonal shift in transmission, 2016-2022

    Kjær, Lene Jung, Ward, M. P., Boklund, Anette, Larsen, Lars, Hjulsager, C. K. & Kirkeby, Carsten, 2023, In: Scientific Reports. 13, 16 p., 15396.

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

  19. 2022
  20. Published

    Risk factors of avian influenza in Danish poultry and wild birds during the epidemic waves from June 2020 to May 2021

    Liu, Yangfan, Kjær, Lene Jung, Boklund, Anette, Hjulsager, C. K., Larsen, Lars & Kirkeby, Carsten, 8 Aug 2022.

    Research output: Contribution to conference › Poster › Research

  21. Published

    Using national avian influenza data to predict spatial patterns in wild birds from Denmark, 2006-2020

    Kjær, Lene Jung, Boklund, Anette, Larsen, Lars, Hjulsager, C. K. & Ward, M. P., 3 May 2022.

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

  22. Published

    Forecasting outbreaks of high pathogenic avian influenza in Europe

    Kjær, Lene Jung, Boklund, Anette, Larsen, Lars, Hjulsager, C. K., Ward, M. P. & Kirkeby, Carsten, 23 Mar 2022.

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

  23. Published

    Characterization of Influenza D Virus in Danish Calves

    Goecke, Nicole Bakkegård, Liang, Yuan, Dam Otten, Nina, Hjulsager, C. K. & Larsen, Lars, 2022, In: Viruses. 14, 2, 423.

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

  24. Published

    Disease control tools to secure animal and public health in a densely populated world

    Charlier, J., Barkema, H. W., Becher, P., De Benedictis, P., Hansson, I., Hennig-Pauka, I., La Ragione, R., Larsen, Lars, Madoroba, E., Maes, D., Marin, C. M., Mutinelli, F., Nisbet, A. J., Podgorska, K., Vercruysse, J., Vitale, F., Williams, D. J. L. & Zadoks, R. N., 2022, In: The Lancet Planetary Health. 6, 10, p. E812-E824 13 p.

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

  25. Published

    Experimental infection of high health pigs with porcine circovirus type 2 (PCV2) and Lawsonia intracellularis

    Hansen, Mette Sif, Jensen, T. K., Hjulsager, C. K., Angen, Ø., Riber, U., Nielsen, J., Heegaard, P. M. H. & Larsen, Lars, 2022, In: Frontiers in Veterinary Science. 9, 994147.

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

  26. Published

    Fugleinfluenza (Aviær Influenzavirus)

    Larsen, Lars & Trebbien, R., 2022, Risikovurdering af zoonotiske virus og andre agens, der kan forekomme i dyr og kan have epidemisk potentiale. Bødker, R., Kjær, L. J., Jokelainen, P., Trebbien, R., Boklund, A. & Larsen, L. E. (eds.). Københavns Universitet, p. 21-28 7 p.

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

  27. Published

    Has Epizootic Become Enzootic? Evidence for a Fundamental Change in the Infection Dynamics of Highly Pathogenic Avian Influenza in Europe, 2021

    Pohlmann, A., King, J., Fusaro, A., Zecchin, B., Banyard, A. C., Brown, I. H., Byrne, A. M. P., Beerens, N., Liang, Y., Heutink, R., Harders, F., James, J., Reid, S. M., Hansen, R. D. E., Lewis, N. S., Hjulsager, C., Larsen, L. E., Zohari, S., Anderson, K., Bröjer, C. & 10 others, Nagy, A., Savič, V., van Borm, S., Steensels, M., Briand, F. X., Swieton, E., Smietanka, K., Grund, C., Beer, M. & Harder, T., 2022, In: mBio. 13, 4, e0060922.

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

  28. Published

    Hepatitis E (Hepatitis E virus)

    Jokelainen, P., Larsen, Lars, Krog, J. S., Midgley, S. E. & Vorobieva Solholm Jensen, V., 2022, Risikovurdering af zoonotiske virus og andre agens, der kan forekomme i dyr og kan have epidemisk potentiale. Bødker, R., Kjær, L. J., Jokelainen, P., Trebbien, R., Boklund, A. & Larsen, L. E. (eds.). Københavns Universitet, p. 35-41 7 p.

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

  29. Published

    Influenza A virus i svin (Svineinfluenza – SwIAV)

    Larsen, Lars & Trebbien, R., 2022, Risikovurdering af zoonotiske virus og andre agens, der kan forekomme i dyr og kan have epidemisk potentiale. Bødker, R., Kjær, L. J., Jokelainen, P., Trebbien, R., Boklund, A. & Larsen, L. E. (eds.). Københavns Universitet, p. 28-34 7 p.

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

  30. Published

    Influenza A virus in pigs and birds in Denmark

    Larsen, Lars, Hjulsager, C., Ryt-Hansen, Pia, Andersen, K. M. & Trebbien, R., 2022, Annual Report on Zoonoses in Denmark 2021. Olsen, A., Høg, B. B., Sandberg, M., Müller, L. & Torpdahl, M. (eds.). Technical University of Denmark, p. 10-13 (Annual Report on Zoonoses in Denmark, Vol. 2021).

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

  31. Published

    Innate antiviral responses in porcine nasal mucosal explants inoculated with influenza A virus are comparable with responses in respiratory tissues after viral infection

    Starbæk, S. M. R., Andersen, M. R., Brogaard, L., Spinelli, A., Rapson, V., Glud, H. A., Larsen, Lars, Heegaard, P. M. H., Nauwynck, H. & Skovgaard, K., 2022, In: Immunobiology. 227, 3, 152192.

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

  32. Published

    Landscape effects and spatial patterns of avian influenza virus in Danish wild birds, 2006-2020

    Kjær, Lene Jung, Hjulsager, C. K., Larsen, Lars, Boklund, Anette, Halasa, T., Ward, M. P. & Kirkeby, Carsten, 2022, In: Transboundary and Emerging Diseases. 69, 2, p. 706-719

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

  33. Published

    Molecular epidemiology of Porcine Parvovirus Type 1 (PPV1) and the reactivity of vaccine-induced antisera against historical and current PPV1 strains

    Vereecke, N., Kvisgaard, L. K., Baele, G., Boone, C., Kunze, M., Larsen, Lars, Theuns, S. & Nauwynck, H., 2022, In: Virus Evolution. 8, 1, veac053.

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

  34. Published

    Non-specific effects of maternal and offspring rabies vaccination on mortality and antibiotic use in a Danish pig herd: A randomized trial

    Jensen, K. J., Tolstrup, L. K., Knobel, D. L., Aaby, P., Jungersen, G., Larsen, Lars, Kristensen, C. S. & Benn, C. S., 2022, In: Vaccine. 40, 11, p. 1665-1673

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

  35. Published

    Overvågning af influenza A virus i svin: Slutrapport 2021

    Ryt-Hansen, Pia, Hjulsager, C. K., Krog, J. S. & Larsen, Lars, 2022, Københavns Universitet. 31 p.

    Research output: Book/Report › Report › Research

  36. Published

    Pathogenesis and infection dynamics of high pathogenicity avian influenza virus (HPAIV) H5N6 (clade 2.3.4.4b) in pheasants and onward transmission to chickens

    Liang, Yuan, Hjulsager, C. K., Seekings, A. H., Warren, C. J., Lean, F. Z. X., Núñez, A., James, J., Thomas, S. S., Banyard, A. C., Slomka, M. J., Brown, I. H. & Larsen, Lars, 2022, In: Virology. 577, p. 138-148 11 p.

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

  37. Published

    Recommendations on diagnostic investigations of post-weaning diarrhea outbreaks: assessing the prevalence of diarrhea and determining microbiological etiologies

    Eriksen, E. Ø., Nielsen, Jens Peter, Kudirkiene, E., Olsen, John Elmerdahl, Goecke, Nicole Bakkegård, Larsen, Lars, Liu, G., Schmidt, Marianne Viuf Agerlin, Christensen, A. E. & Pedersen, Ken Steen, 2022.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  38. Published

    Severe Human Case of Zoonotic Infection with Swine-Origin Influenza A Virus, Denmark, 2021

    Andersen, K. M., Vestergaard, L. S., Nissen, Jakob Nybo, George, Sophie Joanna, Ryt-Hansen, Pia, Hjulsager, C. K., Krog, J. S., Skov, M. N., Alexandersen, S., Larsen, Lars & Trebbien, R., 2022, In: Emerging Infectious Diseases . 28, 12, p. 2561-2564 4 p.

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

  39. Published

    The role of gilts in transmission dynamics of swine influenza virus and impacts of vaccination strategies and quarantine management

    Ryt-Hansen, Pia, Nielsen, H. G., Sørensen, S. S., Larsen, Inge, Kristensen, C. S. & Larsen, Lars, 2022, In: Porcine Health Management. 8, 1, 12 p., 19.

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

  40. Published

    Virological and Histopathological Findings in Boars Naturally Infected With Porcine Reproductive and Respiratory Syndrome Virus Type 1

    Pedersen, K., Blirup-Plum, Sophie Amalie, Kristensen, C. S., Kvisgaard, L. K., Skade, L., Jensen, Henrik Elvang & Larsen, Lars, 2022, In: Frontiers in Microbiology. 13, 10 p., 874498.

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

  41. 2021
  42. Published

    Spatial patterns of avian influenza in wild birds from Denmark, 2006-2020

    Kjær, Lene Jung, Boklund, Anette, Kirkeby, Carsten, Hjulsager, C. K., Larsen, Lars, Halasa, T. & Ward, M. P., 25 Mar 2021.

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

  43. Published

    Spatial patterns of avian influenza in wild birds from Denmark, 2006-2020

    Kjær, Lene Jung, Hjulsager, C., Larsen, Lars, Boklund, Anette, Halasa, T., Ward, M. P. & Kirkeby, Carsten, 11 Mar 2021, Society for Veterinary Epidemiology and Preventive Medicine: Proceedings: Online, 24-26 March 2021. Society for Veterinary Epidemiology and Preventive Medicine

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

  44. Published

    Påvisning af PRRSV/Materiale fra orner

    Kristensen, C. S., Kvisgaard, L. K., Blirup-Plum, Sophie Amalie, Skade, L., Pedersen, K., Jensen, Henrik Elvang & Larsen, Lars, 4 Feb 2021, SEGES Svineproduktion.

    Research output: Other contribution › Net publication - Internet publication › Communication

  45. Published

    Challenge of naïve and vaccinated pigs with a vaccine-derived recombinant porcine reproductive and respiratory syndrome virus 1 strain (Horsens strain)

    Kvisgaard, L. K., Larsen, Lars, Kristensen, C. S., Paboeuf, F., Renson, P. & Bourry, O., 2021, In: Vaccines. 9, 5, 12 p., 417.

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

  46. Published

    Co-circulation of multiple influenza a reassortants in swine harboring genes from seasonal human and swine influenza viruses

    Ryt-Hansen, Pia, Krog, J. S., Breum, S. Ø., Hjulsager, C. K., Pedersen, A. G., Trebbien, R. & Larsen, Lars, 2021, In: eLife. 10, 24 p., e60940.

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

  47. Published

    Design of a High-Throughput Real-Time PCR System for Detection of Bovine Respiratory and Enteric Pathogens

    Goecke, Nicole Bakkegård, Nielsen, B. H., Petersen, Mette Bisgaard & Larsen, Lars, 2021, In: Frontiers in Veterinary Science. 8, 677993.

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

  48. Published

    Estimating Clinically Relevant Cut-Off Values for a High-Throughput Quantitative Real-Time PCR Detecting Bacterial Respiratory Pathogens in Cattle

    Klompmaker, A. F., Brydensholt, M., Michelsen, Anne Marie, Denwood, Matt, Kirkeby, Carsten, Larsen, Lars, Goecke, Nicole Bakkegård, Dam Otten, Nina & Nielsen, Liza Rosenbaum, 2021, In: Frontiers in Veterinary Science. 8, 674771.

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

  49. Published

    Histological examination of testes and epididymides from boars naturally infected with porcine reproductive and respiratory syndrome virus (PRRSV)

    Blirup-Plum, Sophie Amalie, Larsen, Lars, Jensen, Henrik Elvang, Kristensen, C. S. & Kvisgaard, L. K., 2021.

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

  50. Published

    Impacts of quarterly sow mass vaccination with a porcine reproductive and respiratory syndrome virus type 1 (Prrsv-1) modified live vaccine in two herds

    Pedersen, K., Kristensen, C. S., Kvisgaard, L. K. & Larsen, Lars, 2021, In: Vaccines. 9, 10, 1057.

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

  51. Published

    Molecular characterization of highly pathogenic avian influenza viruses h5n6 detected in denmark in 2018–2019

    Liang, Yuan, Krog, J. S., Ryt-Hansen, Pia, Pedersen, A. G., Kvisgaard, L. K., Holm, E., Nielsen, P. D., Hammer, Anne Sofie Vedsted, Madsen, Jesper Johannes, Thorup, Kasper, Larsen, Lars & Hjulsager, C. K., 2021, In: Viruses. 13, 6, 1052.

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

  52. Published

    Novel clade 2.3.4.4b highly pathogenic avian influenza a h5n8 and h5n5 viruses in Denmark, 2020

    Liang, Yuan, Nissen, J. N., Krog, J. S., Breum, S., Trebbien, R., Larsen, Lars & Hjulsager, C. K., 2021, In: Viruses. 13, 5, 886.

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

  53. Published

    Overvågning af influenza A virus i svin: Slutrapport 2020

    Ryt-Hansen, Pia, Goecke, Nicole Bakkegård, Krog, J. S., Hjulsager, C. K. & Larsen, Lars, 2021, Københavns Universitet. 28 p.

    Research output: Book/Report › Report › Research

  54. Published

    Post-weaning diarrhea in pigs weaned without medicinal zinc: risk factors, pathogen dynamics, and association to growth rate

    Eriksen, E. Ø., Kudirkiene, E., Christensen, A. E., Schmidt, Marianne Viuf Agerlin, Weber, N. R., Nødtvedt, A., Nielsen, Jens Peter, Hartmann, Katrine Top, Skade, L., Larsen, Lars, Pankoke, K., Olsen, John Elmerdahl, Jensen, Henrik Elvang & Pedersen, Ken Steen, 2021, In: Porcine Health Management. 7, 54.

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

  55. Published

    Reassortant influenza A(H1N1)pdm09 virus in elderly woman, Denmark, January 2021

    Nissen, J. N., George, Sophie Joanna, Hjulsager, C. K., Krog, J. S., Nielsen, X. C., Madsen, T. V., Andersen, K. M., Krause, T. G., Vestergaard, L. S., Larsen, Lars & Trebbien, R., 2021, In: Emerging Infectious Diseases . 27, 12, p. 3202-3205 4 p.

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

  56. Published

    Reduced virus load in lungs of pigs challenged with porcine reproductive and respiratory syndrome virus after vaccination with virus replicon particles encoding conserved prrsv cytotoxic t-cell epitopes

    Welner, S., Ruggli, N., Liniger, M., Summerfield, A., Larsen, Lars & Jungersen, G., 2021, In: Vaccines. 9, 3, p. 1-22 22 p., 208.

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

  57. Published

    Zoonotic and reverse zoonotic transmission of viruses between humans and pigs

    Glud, H. A., George, Sophie Joanna, Skovgaard, K. & Larsen, Lars, 2021, In: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica. 129, 12, p. 675-693

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

  58. 2020
  59. Published

    A recombination between two Type 1 Porcine Reproductive and Respiratory Syndrome Virus (PRRSV-1) vaccine strains has caused severe outbreaks in Danish pigs

    Kvisgaard, L. K., Kristensen, C. S., Ryt-Hansen, Pia, Pedersen, K., Stadejek, T., Trebbien, R., Andresen, L. O. & Larsen, Lars, 2020, In: Transboundary and Emerging Diseases. 67, 5, p. 1786-1796

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

  60. Published

    Assessment of the Impact of the Recombinant Porcine Reproductive and Respiratory Syndrome Virus Horsens Strain on the Reproductive Performance in Pregnant Sows

    Genís, S., Kvisgaard, L. K., Larsen, Lars, Taylor, L. P., Calvert, J. G. & Balasch, M., 2020, In: Pathogens. 9, 9, 12 p., 772.

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

  61. Published

    Coronavirus i danske produktionsdyr, kæledyr og vilde dyre

    Belsham, Graham John, Larsen, Lars, Ryt-Hansen, Pia, Rasmussen, T. B. & Bøtner, A. G., 2020, In: Dansk Veterinaertidsskrift. 2020, 03, p. 24-25

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

  62. Published

    DERFOR ER INFLUENZA SVÆR AT HÅNDTERE: RESULTATER FRA ET PH.D.-STUDIUM

    Ryt-Hansen, Pia, Kristensen, C. S., Larsen, Inge, Krog, J. S. & Larsen, Lars, 2020, In: SEGES Notat. 2009, 5 p.

    Research output: Contribution to journal › Journal article › Research

  63. Development of a high-throughput real-time PCR system for detection of enzootic pathogens in pigs

    Goecke, Nicole Bakkegård, Hjulsager, C. K., Krog, J. S., Skovgaard, K. & Larsen, Lars, 2020, In: Journal of Veterinary Diagnostic Investigation. 32, 1, p. 51-64 14 p.

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

  64. Published

    Evaluation of novel multiplex qPCR assays for diagnosis of pathogens associated with the bovine respiratory disease complex

    Pansri, P., Katholm, J., Krogh, K. M., Aagaard, A. K., Schmidt, L. M. B., Kudirkiene, E., Larsen, Lars & Olsen, John Elmerdahl, 2020, In: Veterinary Journal. 256, 105425.

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

  65. Published

    Genesis and spread of multiple reassortants during the 2016/2017 H5 avian influenza epidemic in Eurasia

    Global Consortium for H5N8 and Related Influenza Viruses, G. C. F. H. A. R. I. V. & Larsen, Lars, 2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 34, p. 20814-20825 12 p.

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

  66. Published

    Infection Dynamics of Swine Influenza Virus in a Danish Pig Herd Reveals Recurrent Infections with Different Variants of the H1N2 Swine Influenza A Virus Subtype

    Bhatta, T., Ryt-Hansen, Pia, Nielsen, Jens Peter, Larsen, Lars, Larsen, Inge, Chamings, A., Goecke, Nicole Bakkegård & Alexandersen, S., 2020, In: Viruses. 12, 9, 18 p., 1013.

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

  67. Published

    Landscape and spatial patterns of avian influenza virus in Danish wild birds, 2006-2020

    Kjær, Lene Jung, Hjulsager, C., Larsen, Lars, Boklund, Anette, Halasa, T., Ward, M. & Kirkeby, Carsten, 2020, Authorea.

    Research output: Working paper › Preprint › Research

  68. Objective pathogen monitoring in nursery and finisher pigs by monthly laboratory diagnostic testing

    Goecke, Nicole Bakkegård, Kobberø, M., Kusk, T. K., Hjulsager, C. K., Pedersen, Ken Steen, Kristensen, C. S. & Larsen, Lars, 2020, In: Porcine Health Management. 6, p. 14 23.

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

  69. Published

    POLTE KAN VEDLIGEHOLDE INFLUENZASMITTE

    Sørensen, S. S., Guldberg, H., Ryt-Hansen, Pia, Larsen, Lars, Larsen, Inge & Kristensen, C. S., 2020, In: SEGES Notat. 2015, 6 p.

    Research output: Contribution to journal › Journal article › Research

  70. Published

    Production losses five months after outbreak with a recombinant of two PRRSV vaccine strains in 13 Danish sow herds

    Kristensen, C. S., Christiansen, M. G., Pedersen, K. & Larsen, Lars, 2020, In: Porcine Health Management. 6, 1, 26.

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

  71. Published

    Substantial Antigenic Drift in the Hemagglutinin Protein of Swine Influenza A Viruses

    Ryt-Hansen, Pia, Pedersen, A. G., Larsen, Inge, Kristensen, C. S., Krog, J. S., Wacheck, S. & Larsen, Lars, 2020, In: Viruses. 12, 2, 17 p., 248.

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

  72. 2019
  73. Published

    Acute Influenza A virus outbreak in an enzootic infected sow herd: Impact on viral dynamics, genetic and antigenic variability and effect of maternally derived antibodies and vaccination

    Ryt-Hansen, Pia, Pedersen, A. G., Larsen, Inge, Krog, J. S., Kristensen, C. S. & Larsen, Lars, 1 Jan 2019, In: PLoS ONE. 14, 11, 23 p., e0224854.

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

  74. A triple amino acid substitution at position 88/94/95 in glycoprotein gp2a of type 1 porcine reproductive and respiratory syndrome virus (Prrsv1) is responsible for adaptation to marc-145 cells

    Xie, J., Trus, I., Oh, D., Kvisgaard, L. K., Rappe, J. C. F., Ruggli, N., Vanderheijden, N., Larsen, Lars, Lefèvre, F. & Nauwynck, H. J., Jan 2019, In: Viruses. 11, 1, 36.

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

  75. Kvantitativ PCR kan være et godt supplement til påvisning af cytomegalovirus-infektion: Meddelelse nr. 1162

    Tolstrup, L., Haugegaard, S., Larsen, Lars, Hjulsager, C. K., Jensen, Tim Kåre, Hansen, Mette Sif & Kristensen, C. S., 2019

    Research output: Book/Report › Report › Research

  76. Published

    Limited impact of influenza A virus vaccination of piglets in an enzootic infected sow herd

    Ryt-Hansen, Pia, Larsen, Inge, Kristensen, C. S., Krog, J. S. & Larsen, Lars, 2019, In: Research in Veterinary Science. 127, p. 47-56 10 p.

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

  77. Published

    Longitudinal field studies reveal early infection and persistence of influenza A virus in piglets despite the presence of maternally derived antibodies

    Ryt-Hansen, P., Larsen, Inge, Kristensen, C. S., Krog, J. S., Wacheck, S. & Larsen, Lars, 2019, In: Veterinary Research. 50, 1, 10 p., 36.

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

  78. Published

    Pathogenicity and genomic changes of a 2016 European H5N8 highly pathogenic avian influenza virus (clade 2.3.4.4) in experimentally infected mallards and chickens

    Leyson, C., Youk, S., Smith, D., Dimitrov, K., Lee, D., Larsen, Lars, Swayne, D. E. & Pantin-Jackwood, M. J., 2019, In: Virology. 537, p. 172-185 14 p.

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

  79. Tracing hepatitis e virus in pigs from birth to slaughter

    Krog, J. S., Larsen, Lars & Breum, S., 2019, In: Frontiers in Veterinary Science. 6, FEB, 00050.

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

  80. 2018

  81. Animal Models for Influenza A Virus Infection Incorporating the Involvement of Innate Host Defenses: Enhanced Translational Value of the Porcine Model

    Starbæk, S. M. R., Brogaard, L., Dawson, H. D., Smith, A. D., Heegaard, P. M. H., Larsen, Lars, Jungersen, G. & Skovgaard, K., 31 Dec 2018, In: ILAR Journal. 59, 3, p. 323-337 15 p.

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

  82. Diarrhoea in neonatal piglets: A case control study on microbiological findings

    Kongsted, H., Pedersen, K., Hjulsager, C. K., Larsen, Lars, Pedersen, Ken Steen, Jorsal, S. E. & Bækbo, P., 3 Sep 2018, In: Porcine Health Management. 4, 1, 17.

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

  83. Full-genome sequencing of porcine circovirus 3 field strains from Denmark, Italy and Spain demonstrates a high within-Europe genetic heterogeneity

    Franzo, G., Legnardi, M., Hjulsager, C. K., Klaumann, F., Larsen, Lars, Segales, J. & Drigo, M., Jun 2018, In: Transboundary and Emerging Diseases. 65, 3, p. 602-606 5 p.

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

  84. Subtyping of swine influenza viruses using a high-throughput real-time PCR platform

    Goecke, Nicole Bakkegård, Krog, J. S., Hjulsager, C. K., Skovgaard, K., Harder, T. C., Breum, S. & Larsen, Lars, 22 May 2018, In: Frontiers in Cellular and Infection Microbiology. 8, MAY, 165.

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

  85. Published

    Comparison of serum pools and oral fluid samples for detection of porcine circovirus type 2 by quantitative real-time PCR in finisher pigs

    Nielsen, G. B., Nielsen, Jens Peter, Haugegaard, J., Leth, S. C., Larsen, Lars, Kristensen, C. S., Pedersen, Ken Steen, Stege, Helle, Hjulsager, C. K. & Houe, Hans, 1 Feb 2018, In: Porcine Health Management. 4, 10 p., 2.

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

  86. Evaluation of ELISA and haemagglutination inhibition as screening tests in serosurveillance for H5/H7 avian influenza in commercial chicken flocks

    Arnold, M. E., Slomka, M. J., Breed, A. C., Hjulsager, C. K., Pritz-Verschuren, S., Venema-Kemper, S., Bouwstra, R. J., Trebbien, R., Zohari, S., Ceeraz, V., Larsen, Lars, Manvell, R. J., Koch, G. & Brown, I. H., 1 Feb 2018, In: Epidemiology and Infection. 146, 3, p. 306-313 8 p.

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

  87. Efficacy and safety of simultaneous vaccination with two modified live virus vaccines against porcine reproductive and respiratory syndrome virus types 1 and 2 in pigs

    Kristensen, C. S., Kvisgaard, L. K., Pawlowski, M., Holmgaard Carlsen, S., Hjulsager, C. K., Heegaard, P. M. H., Bøtner, A., Stadejek, T., Haugegaard, S. & Larsen, Lars, 4 Jan 2018, In: Vaccine. 36, 2, p. 227-236 10 p.

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

  88. Published

    IFN-λ and microRNAs are important modulators of the pulmonary innate immune response against influenza A (H1N2) infection in pigs

    Brogaard, L., Larsen, Lars, Heegaard, P. M. H., Anthon, Christian, Gorodkin, Jan, Dürrwald, R. & Skovgaard, K., 2018, In: PLOS ONE. 13, 4, 23 p., e0194765.

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

  89. 2017

  90. Global phylogenetic analysis of contemporary aleutian mink disease viruses (AMDVs)

    Ryt-Hansen, Pia, Hagberg, E. E., Chriél, M., Struve, T., Pedersen, A. G., Larsen, Lars & Hjulsager, C. K., 22 Nov 2017, In: Virology Journal. 14, 1, 231.

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

  91. Genetic and biological characterization of a Porcine Reproductive and Respiratory Syndrome Virus 2 (PRRSV-2) causing significant clinical disease in the field

    Kvisgaard, L. K., Larsen, Lars, Hjulsager, C. K., Bøtner, A., Rathkjen, P. H., Heegaard, P. M. H., Bisgaard, N. P., Nielsen, J. & Hansen, Mette Sif, Nov 2017, In: Veterinary Microbiology. 211, p. 74-83 10 p.

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

  92. Outbreak tracking of Aleutian mink disease virus (AMDV) using partial NS1 gene sequencing

    Ryt-Hansen, Pia, Hjulsager, C. K., Hagberg, E. E., Chriél, M., Struve, T., Pedersen, A. G. & Larsen, Lars, 21 Jun 2017, In: Virology Journal. 14, 1, 119.

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

  93. Evolutionary analysis of whole-genome sequences confirms inter-farm transmission of Aleutian mink disease virus

    Hagberg, E. E., Pedersen, A. G., Larsen, Lars & Krarup, A., Jun 2017, In: Journal of General Virology. 98, 6, p. 1360-1371 12 p., 000777.

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

  94. Triple-reassortant influenza A virus with H3 of human seasonal origin, NA of swine origin, and internal A(H1N1) pandemic 2009 genes is established in Danish pigs

    Krog, J. S., Hjulsager, C. K., Larsen, M. A. & Larsen, Lars, May 2017, In: Influenza and Other Respiratory Viruses. 11, 3, p. 298-303 6 p.

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

  95. Identification of cross-reacting T-cell epitopes in structural and non-structural proteins of swine and pandemic H1N1 influenza a virus strains in pigs

    Baratelli, M., Pedersen, L. E., Trebbien, R., Larsen, Lars, Jungersen, G., Blanco, E., Nielsen, J. & Montoya, M., 2017, In: Journal of General Virology. 98, 5, p. 895-899 5 p., 000748.

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

  96. PCV2 er påvist i lymfeknuder fra børe indsendt til USK

    Thorup, F., Haugegaard, S., Kristensen, C. S., Hjulsager, C. K., Larsen, Lars & Jensen, Tim Kåre, 2017, In: SEGES Notat. 1716

    Research output: Contribution to journal › Journal article › Research

  97. Pathogenicity of three genetically diverse strains of PRRSV Type 1 in specific pathogen free pigs

    Stadejek, T., Larsen, Lars, Podgórska, K., Bøtner, A., Botti, S., Dolka, I., Fabisiak, M., Heegaard, P. M. H., Hjulsager, C. K., Huć, T., Kvisgaard, L. K., Sapierzyński, R. & Nielsen, J., 2017, In: Veterinary Microbiology. 209, p. 13-19 7 p.

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

  98. 2016

  99. Rapid detection and subtyping of European swine influenza viruses in porcine clinical samples by haemagglutinin- and neuraminidase-specific tetra- and triplex real-time RT-PCRs

    Henritzi, D., Zhao, N., Starick, E., Simon, G., Krog, J. S., Larsen, Lars, Reid, S. M., Brown, I. H., Chiapponi, C., Foni, E., Wacheck, S., Schmid, P., Beer, M., Hoffmann, B. & Harder, T. C., 1 Nov 2016, In: Influenza and Other Respiratory Viruses. 10, 6, p. 504-517 14 p.

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

  100. A fast and robust method for whole genome sequencing of the Aleutian Mink Disease Virus (AMDV) genome

    Hagberg, E. E., Krarup, A., Fahnøe, Ulrik, Larsen, Lars, Dam-Tuxen, R. & Pedersen, A. G., Aug 2016, In: Journal of Virological Methods. 234, p. 43-51 9 p.

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

  101. First characterization of avian influenza viruses from Greenland 2014

    Hartby, C. M., Krog, J. S., Merkel, F., Holm, E., Larsen, Lars & Hjulsager, C. K., 1 May 2016, In: Avian Diseases. 60, 1, p. 302-310 9 p.

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

  102. Spatiotemporal analysis of the genetic diversity of seal influenza A(H10N7) virus, northwestern Europe

    Bodewes, R., Zohari, S., Krog, J. S., Hall, M. D., Harder, T. C., Bestebroer, T. M., Van De Bildt, M. W. G., Spronken, M. I., Larsen, L. E., Siebert, U., Wohlsein, P., Puff, C., Seehusen, F., Baumgärtner, W., Härkönen, T., Smits, S. L., Herfst, S., Osterhaus, A. D. M. E., Fouchier, R. A. M., Koopmans, M. P. & 1 others, Kuiken, T., 1 May 2016, In: Journal of Virology. 90, 9, p. 4269-4277 9 p.

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

  103. The global antigenic diversity of swine influenza A viruses

    ESNIP3 consortium, E. C., 15 Apr 2016, In: eLife. 5, APRIL2016, e12217.

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

  104. Late regulation of immune genes and microRNAs in circulating leukocytes in a pig model of influenza A (H1N2) infection

    Brogaard, L., Heegaard, P. M. H., Larsen, Lars, Mortensen, S., Schlegel, M., Dürrwald, R. & Skovgaard, K., 19 Feb 2016, In: Scientific Reports. 6, 21812.

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

  105. Immunity raised by recent European subtype 1 PRRSV strains allows better replication of East European subtype 3 PRRSV strain Lena than that raised by an older strain

    Trus, I., Frydas, I. S., Reddy, V. R. A. P., Bonckaert, C., Li, Y., Kvisgaard, L. K., Larsen, Lars & Nauwynck, H. J., 2016, In: Veterinary Research. 47, 1, 15.

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

  106. The non-structural protein 5 and matrix protein are antigenic targets of T cell immunity to genotype 1 porcine reproductive and respiratory syndrome viruses

    Mokhtar, H., Pedrera, M., Frossard, J. P., Biffar, L., Hammer, S. E., Kvisgaard, L. K., Larsen, Lars, Stewart, G. R., Somavarapu, S., Steinbach, F. & Graham, S. P., 2016, In: Frontiers in Immunology. 7, FEB, 40.

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

  107. 2015

  108. A two-year follow-up study of the PCV2 status of a Danish pig herd that was initially assumed to be PCV2-free

    Kristensen, C. S., Hjulsager, C. K. & Larsen, Lars, 2015, In: Porcine Health Management. 1, 5.

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

  109. Different clinical, virological, serological and tissue tropism outcomes of two new and one old Belgian type 1 subtype 1 porcine reproductive and respiratory virus (PRRSV) isolates

    Frydas, I. S., Trus, I., Kvisgaard, L. K., Bonckaert, C., Reddy, V. R., Li, Y., Larsen, Lars & Nauwynck, H. J., 2015, In: Veterinary Research. 46, 1, 37.

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

  110. Influenza a(H10N7) virus in dead harbor seals, Denmark

    Krog, J. S., Hansen, Mette Sif, Holm, E., Hjulsager, C. K., Chriél, M., Pedersen, K., Andresen, L. O., Abildstrøm, M., Jensen, T. H. & Larsen, Lars, 2015, In: Emerging Infectious Diseases. 21, 4, p. 684-687 4 p.

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

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ID: 9868875