Eradication with Enrofloxacin May Lead to Dissemination and Long-Term Persistence of Quinolone Resistant in Pig Herds.

Norway has a favourable situation with regard to health status and antimicrobial usage in the pig production sector. However, one of the major disease-causing agents in the commercial pig population is (APP). In some herds, APP eradication has been performed by using enrofloxacin in combination with a partial herd depopulation.

Experimental infection of cattle with ovine Dichelobacter nodosus isolates.

Background: Dichelobacter nodosus is the main causative agent of ovine footrot, and there are strong indications that the bacterium can be transferred to cattle grazing on the same pasture as sheep. The aim of this study was to investigate if benign and virulent D. nodosus strains isolated from sheep can be transferred to the interdigital skin of cattle under experimental conditions.

Characterisation of Dichelobacter nodosus isolates from Norway.

An outbreak of ovine footrot in Norway in 2008, the first reported since 1948, prompted action to investigate Norwegian isolates of Dichelobacter nodosus. A total of 579 isolates from 124 different farms were characterised. These included 519 isolates from sheep, 52 isolates from cattle and 8 isolates from goats.