Establishing a surveillance programme for Salmonella Dublin in Austrian dairy herds by comparing herd-level vs. individual animal detection methods.

Due to its increasing occurrence in cattle farms in various countries, leading to significant economic losses in affected livestock, Salmonella enterica subspecies enterica serovar Dublin (S. Dublin) has become a highly investigated pathogen in cattle production. In Austria, there have been occasional human cases of S.

Management and housing factors associated with paratuberculosis-positive herds in small structured alpine cattle husbandry.

Paratuberculosis (Johne´s disease) is a world-wide cattle disease caused by Mycobacterium avium subsp. paratuberculosis (MAP), associated with substantial economic losses. Purchase of subclinically infected animals or contact with animals and equipment of infected farms are known risk factors for disease transmission among herds.

subsp. in Sheep and Goats in Austria: Seroprevalence, Risk Factors and Detection from Boot Swab Samples.

This study aimed to investigate the prevalence of subsp. (MAP) in small ruminants in Austria by testing 22,019 serum samples with ELISA for the presence of specific antibodies. Furthermore, detailed investigations in five MAP-infected goat herds were carried out by ELISA, qPCR and bacterial culture.

[Infectious causes of abortions in cattle - own experiences and investigations from 2018 (January-September)].

Objective: In the study, the laboratory results of 150 bovine abortion cases from 2018 (January-September) are presented.

Material And Methods: Depending on the submitted sample material and the requested examination, serological, bacteriological and/or molecular biological investigations were performed to detect abortion-causing pathogens which need or do not need to be notified in Austria.

Results: In addition to animal pathogens, the zoonotic pathogens and Dublin were detected in 1 case each and in 2 fetuses.

Long-term detection of Mycobacterium avium subspecies paratuberculosis in individual and bulk tank milk from a dairy herd with a low prevalence of Johne's disease.

Mycobacterium avium ssp. paratuberculosis (MAP) causes Johne's disease (JD) in ruminants and is shed into the milk of infected cows, which contributes to the controversial discussion about a possible link between MAP and Crohn's disease in humans. The aim of the study was to investigate the risk for the entry of MAP in the food chain via milk from dairy farms with subclinical JD.