Research Topics
| T TollersrudSummaryAffiliation: National Veterinary Institute Country: Norway Publications
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Detail Information
Publications
Clinical mastitis in ewes; bacteriology, epidemiology and clinical featuresTormod Mørk
Department of Animal Health, National Veterinary Institute, PO Box 8156 Dep, N 0033 Oslo, Norway
Acta Vet Scand 49:23. 2007..Clinical mastitis is an important disease in sheep. The objective of this work was to identify causal bacteria and study certain epidemiological and clinical features of clinical mastitis in ewes kept for meat and wool production...
Genetic and serologic evaluation of capsule production by bovine mammary isolates of Staphylococcus aureus and other Staphylococcus spp. from Europe and the United StatesT Tollersrud
Section of Immunoprophylaxis, National Veterinary Institute, Oslo, Norway
J Clin Microbiol 38:2998-3003. 2000..aureus from different geographic regions. This information is important for the rational design of a capsule-based vaccine to prevent S. aureus bovine mastitis...
Characterisation of isolates of Staphylococcus aureus from acute, chronic and subclinical mastitis in cows in NorwayT Tollersrud
National Veterinary Institute, Oslo, Norway
APMIS 108:565-72. 2000..It appears that the majority of S. aureus isolates recovered from cases of bovine mastitis in Norway are genetically closely related and express common phenotypical characteristics...
Staphylococcus aureus capsular polysaccharide type 5 conjugate and whole cell vaccines stimulate antibody responses in cattleT Tollersrud
Department of Immunoprophylaxis, National Veterinary Institute, PB 8156, 0033 Oslo Dep, Norway
Vaccine 19:3896-903. 2001..The use of conjugation technology, although effective, might not be necessary in order to achieve an immune response against S. aureus CP5 in cattle...
Imaging the surface of Staphylococcus aureus by atomic force microscopyT Tollersrud
National Veterinary Institute, 0033 Oslo Dep, Norway
APMIS 109:541-5. 2001..Moreover, comparison of images of the heavily encapsulated serotype 2 strain and the serotype 5 strain indicates that a type 2 capsule can be distinguished from a type 5 microcapsule...
Antibody responses in sheep vaccinated against Staphylococcus aureus mastitis: a comparison of two experimental vaccines containing different adjuvantsT Tollersrud
Department of Immunoprophylaxis, National Veterinary Institute, PB 8156, 0033 Oslo, Norway
Vet Res Commun 26:587-600. 2002..The results indicate differences between the oil-adjuvanted and Carbopol-adjuvanted vaccines with regard to their ability to stimulate antibody production against S. aureus protein antigens in sheep...
Staphylococcus aureus enterotoxin D is secreted in milk and stimulates specific antibody responses in cows in the course of experimental intramammary infectionTore Tollersrud
Department of Animal Health, National Veterinary Institute, P O Box 8156, Dep 0033 Oslo, Norway
Infect Immun 74:3507-12. 2006..The results show that SED is secreted during mammary gland infection, is mitogenic for bovine lymphocytes, and stimulates the production of specific antibodies...
Comparison of Staphylococcus aureus genotypes recovered from cases of bovine, ovine, and caprine mastitisT Mørk
Department of Animal Health, National Veterinary Institute, P O Box 8156 Dep, N 0033 Oslo, Norway
J Clin Microbiol 43:3979-84. 2005..Selection due to antimicrobial resistance appears not to have contributed to the predominance of these genotypes...
Persistence of staphylococcal species and genotypes in the bovine udderT Mørk
Norwegian Veterinary Institute, Oslo, Norway
Vet Microbiol 159:171-80. 2012..Of special interest was the observation that only one, or a few, strains of each species caused persistent IMI in multiple cows within a same herd. This indicates strain differences with respect to transmissibility and pathogenicity...
Staphylococcus aureus capsular polysaccharide types 5 and 8 reduce killing by bovine neutrophils in vitroAnnette H Kampen
National Veterinary Institute, P O Box 8156 Dep, N 0033 Oslo, Norway
Infect Immun 73:1578-83. 2005....
Genetic diversity of Staphylococcus aureus isolated from ovine intramammary infections in NorwayTormod Mørk
National Veterinary Institute, P O Box 8156 Dep, N 0033 Oslo, Norway
Vet Microbiol 106:265-73. 2005..Resistance to penicillin was found in only 3 of the 384 S. aureus isolates. These represented three different single banding patterns, not related to any of the prevalent pulsotypes found...
Repeatability of flow cytometric and classical measurement of phagocytosis and respiratory burst in bovine polymorphonuclear leukocytesAnnette H Kampen
National Veterinary Institute, P O Box 8156 Dep, N 0033 Oslo, Norway
Vet Immunol Immunopathol 97:105-14. 2004..The flow cytometric methods represent a convenient alternative to the classical methods for measurement of phagocytosis and respiratory burst in bovine blood PMNs...
Lymphocyte subpopulations and neutrophil function in calves during the first 6 months of lifeAnnette H Kampen
Department of Animal Health, National Veterinary Institute, P O Box 8156 Dep, N 0033 Oslo, Norway
Vet Immunol Immunopathol 113:53-63. 2006..Furthermore, the results indicate that the neutrophilic granulocytes are functional and able to mount an effective response in young calves from the first week of life...
Flow cytometric measurement of neutrophil respiratory burst in whole bovine blood using live Staphylococcus aureusAnnette H Kampen
Department of Animal Health, National Veterinary Institute, Oslo, Norway
J Immunol Methods 289:47-55. 2004..The method is considered a useful technique for measurement of neutrophil respiratory burst in whole bovine blood...
Spread of Staphylococcus aureus resistant to penicillin and tetracycline within and between dairy herdsS Waage
Section of Cattle Health, National Veterinary Institute, Oslo, Norway
Epidemiol Infect 129:193-202. 2002..aureus occurring in dairy herds in Norway mainly seems to represent one particular strain that has achieved widespread distribution or belong to one of several different strains carrying identical plasmids...
