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Toxin Genes and Other Characteristics ofStaphylococcus aureus Isolates from Milk of Cows with Mastitis
- O. Akineden, C. Annemüller, A. A. Hassan, C. Lämmler, W. Wolter, M. Zschöck
- Biology, MedicineClinical Diagnostic Laboratory Immunology
- 1 September 2001
A limited number of clones seemed to be responsible for the cases of bovine mastitis on the various farms, according to the observed gene polymorphisms, the toxin patterns, and the information given by macrorestriction analysis of the isolates by pulsed-field gel electrophoresis.
Shiga‐toxin‐producing Escherichia coli in faeces of healthy dairy cows, sheep and goats: prevalence and virulence properties
- M. Zschöck, H. Hamann, B. Kloppert, W. Wolter
- Biology, MedicineLetters in applied microbiology
- 1 September 2000
The prevalence of Shiga‐toxin‐producing Escherichia coli (STEC) in healthy dairy ruminants was investigated between 1996 and 1998 by a multiplex polymerase chain reaction (mPCR) technique and the prevalence of EHEC‐haemolysin (EHEC‐hlyA) gene sequence was 88·8% of the stx1 and 68·8%.
Somatic cell counts and bacteriological status in quarter foremilk samples of cows in Hesse, Germany--a longitudinal study.
Inflammation can obviously be detected in mammary glands of udder quarters healthy according to the current definitions, and it is argued that such inflammation can be detected by examination of the relationship of immune cells in milk.
Distribution of virulence genes of Staphylococcus aureus isolated from stable nasal carriers.
Identification and epidemiological characterization of Streptococcus uberis isolated from bovine mastitis using conventional and molecular methods.
- I. U. Khan, A. A. Hassan, A. Abdulmawjood, C. Lämmler, W. Wolter, M. Zschöck
- Biology, MedicineJournal of veterinary science
- 1 December 2003
The generally unrelated DNA patterns indicated that S. uberis is a pathogen with multiple environmental habitats and that infections are caused by a great variety of strains.
Flow cytometric differential cell counts in milk for the evaluation of inflammatory reactions in clinically healthy and subclinically infected bovine mammary glands.
Flow cytometric analysis of immune cells in milk of udder quarters classified as healthy by SCC <100,000 cells/mL revealed inflammatory reactions based on DCC.
Pattern of enterotoxin genes seg, seh, sei and sej positive Staphylococcus aureus isolated from bovine mastitis.
Molecular identification and further characterization of Arcanobacterium pyogenes isolated from bovine mastitis and from various other origins.
It is revealed that 100, 20, 87, 75, and 98% of the A. pyogenes carried the genes plo, cbpA, nanH, nanP, and fimA, which allowed an individual strain characterization, which might help to elucidate the role the putative virulence factors play in bovine mastitis and in various other infections caused by this bacterial pathogen.
Distribution of enterotoxin genes among carriage‐ and infection‐associated isolates of Staphylococcus aureus
- D. Nashev, K. Toshkova, L. Bizeva, Ö. Akineden, C. Lämmler, M. Zschöck
- Medicine, BiologyLetters in applied microbiology
- 1 December 2007
Aims: To compare the distribution of genes encoding classical and newly described enterotoxins among Staphylococcus aureus, associated with carriage and infection.