This farm decided to take on Johne’s disease and reduce its grip on their herd . . . and it worked in a big way. Read this story about a successful Johne’s disease control program carried out with financial support from the Wisconsin Milk Marketing Board, the USDA-APHIS-VS, and the University of Wisconsin-Madison.
USDA NAHMS Dairy 2007 Johne's disease survey results have been released.
The USDA-NAHMS report includes results from NAHMS results from the Dairy 1996, 2002 and 2007 studies on Johne's disease and includes herd level prevalence results through use of environmental culturing. Overall, the study supports peoples' estimates that most herds have some level of infection with 2/3 herds having at least one positive environmental sample; results are also stratified based upon herd size.
Mycobacterium avium subspecies paratuberculosis and Crohn’s disease: a systemic review and meta-analysis. M. Feller et al. The Lancet Infectious Diseases 7(9):607-613, September, 2007.
Abstract: This systematic review assesses the evidence for an association between Mycobacterium avium subspecies paratuberculosis (MAP) and Crohn's disease. We analysed 28 case-control studies comparing MAP in patients with Crohn's disease with individuals free of inflammatory bowel disease (IBD) or patients with ulcerative colitis. Compared with individuals free of IBD, the pooled odds ratio (OR) from studies using PCR in tissue samples was 7·01 (95% CI 3·95–12·4) and was 1·72 (1·02–2·90) in studies using ELISA in serum. ORs were similar for comparisons with ulcerative colitis patients (PCR, 4·13 [1·57–10·9]; ELISA, 1·88 [1·26–2·81]). The association of MAP with Crohn's disease seems to be specific, but its role in the aetiology of Crohn's disease remains to be defined. Full article available at: http://www.sciencedirect.com/science/journal/14733099
