The Danish National Health Survey: Study design, response rate and respondent characteristics in 2010, 2013 and 2017.

This article aims to describe the study design, including descriptive statistics on changes in response rates, characteristics associated with response and response mode distribution, in the Danish National Health Survey (DNHS) in 2010, 2013 and 2017. Each survey was based on five regional stratified random samples and one national random sample drawn from the Danish Civil Registration System. The subsamples were mutually exclusive.

Antibiotic Resistance in Escherichia coli from Pigs in Organic and Conventional Farming in Four European Countries.

Organic pig production differs in many ways from conventional production of pigs, e.g., in antibiotic use, herd structure, feeding regimes, access to outdoor areas and space allowance per pig.

Reappearance of Salmonella serovar Choleraesuis var. Kunzendorf in Danish pig herds.

Salmonella enterica serovar Choleraesuis is a porcine adapted serovar which may cause serious outbreaks in pigs. Here we describe outbreaks of salmonellosis due to S. Choleraesuis in four Danish pig farms in 2012-2013 by clinic, serology, and microbiology and compare the isolates to those of a previous outbreak in 1999-2000.

Temporal relationship between decrease in antimicrobial prescription for Danish pigs and the "Yellow Card" legal intervention directed at reduction of antimicrobial use.

The potential effects of the "Yellow Card" intervention, enforced by Danish authorities in December 2010, on the antimicrobial prescription in the Danish pig production were investigated. Data on antimicrobial prescription for pigs during 2002-2012 was obtained from the national database on veterinary prescribed medicines, VetStat. Descriptive analysis of temporal trends in quantitative antimicrobial prescription for pigs on national level was performed for each administration route, age group and disease group.

A long-lasting outbreak of Salmonella Typhimurium U323 associated with several pork products, Denmark, 2010.

This paper shows that control of foodborne disease outbreaks may be challenging even after establishing the source of infection. An outbreak of Salmonella Typhimurium U323 infections occurred in Denmark from March to September 2010, involving 172 cases. Before the detection of human cases, several positive isolates of the outbreak strain had been found in a particular pig slaughterhouse and thus early traceback, investigation and control measures were possible.