Medycyna Wet. 67 (9), 569-640, 2011

REVIEWS

Enterohaemorrhagic Escherichia coli (EHEC) infections: A threat to public health Cieślik P., Bartoszcze M. [summary] 571

Some New data concerning virology, prions and immunology Larski Z. [summary] 579

PRRS – achievements of the past years and priorities of present and future research Truszczyński M., Pejsak Z. [summary] 584

Epidemiological importance and identification of the monophasic strains of Salmonella Typhimurium 1,4,[5],12:i:- Hoszowski A., Wasyl D. [summary] 589

Analysis of changes in the immunological system during canine senescence and oncogenesis Kempisty B., Zawierucha P., Zaorska K.,
Dorszewska J., Bukowska D., Jaśkowski J.M., Nowicki M., Zabel M. [summary] 594

Amnesic marine toxins as a risk for consumer health Michalski M. [summary] 599

Balanced anesthesia in horses Ratajczak K., Szmigielska M., Henklewski R., Biazik A. [summary] 604

Contrast-enhanced ultrasonography (CEUS): Principles and contrast agents Nowicki M., Wdowiak M., Rychlik A., Nieradka R., Kander M. [summary] 609

Cannabinoids’ influence on cardio-respiratory response in an animal model Kopczyńska B. [summary] 613

Reasons for culling, culling due to lameness, and economic losses in dairy cows – in English Olechnowicz J., Jaśkowski J.M. [summary] 618

ORIGINAL PAPERS

Seroprevalence of bovine paratuberculosis infections in Poland – in English Szteyn J., Wiszniewska-Łaszczych A. [summary] 622

Evaluation of the polymorphism of DNA microsatellite loci from a complementary STR panel for parentage verification in Simmental cattle Radko A.,
Rychlik T., Rubiś D. [summary] 626

Effect of tylosin and prebiotics on the phagocytic activity of polimorfonuclear blood leukocytes in calves Szymańska-Czerwińska M.,
Bednarek D. [summary] 630

CASE REPORTS

Simultaneous acute intervertebral disk extrusion in two adjacent intervertebral spaces in dogs Trębacz P., Sterna J., Trębacz E.,
Bonecka J. [summary] 634