American Association of Bovine Practitoners: Johne's Disease
   Factsheets on the disease for veterinarians.
   http://www.aabp.org/resources/johnes/johnes_index.asp

Animal Health Australia: Johne's Disease
   Government site with disease information, control programs, databases, and publications.
   http://www.animalhealthaustralia.com.au/programs/jd/jd_home.cfm

Bovine Paratuberculosis of Beef Cattle
   Article on the disease from Texas A&M University.
   http://animalscience.tamu.edu/main/academics/beef/pub/health/L5288-paratuber.pdf

Defra: Johne's Disease in Dairy Herds
   UK government site. Factsheets with disease information, control methods, and surveillance information.
   http://www.defra.gov.uk/animalh/diseases/other/johnes.htm

International Association for Paratuberculosis
   Scientific organization for the advancement of scientific progress on Mycobacterium avium subspecies paratuberculosis, related mycobacteria, and related diseases. Includes membership directory, research articles, and publications,
   http://paratuberculosis.org/

Johne's Disease Integrated Program
   Collaboration between universities and the USDA to research the disease. Features disease information, meetings, resources, projects, and news.
   http://www.jdip.org/

Johne's Disease in Sheep
   Good discussion regarding Johne's disease (pronounced yonee's), a bacterial disease of ruminants characterized by wasting and diarrhea.
   http://www.omafra.gov.on.ca/english/livestock/sheep/facts/johnsdis.htm

Johne's Disease in Sheep and Goats
   Ohio State University Extension factsheet with cause, symptoms, tests, and control.
   http://ohioline.osu.edu/vme-fact/0003.html

Johne's Information Center
   University of Wisconsin. Features a FAQ, Johne's epidemiology, diagnosis, pathology, prevention, gallery and graphics, plus brochures, news, and a glossary.
   http://www.johnes.org/

Johne's disease
   Information about ovine (sheep) Johne's disease and its control in New South Wales.
   http://www.agric.nsw.gov.au/reader/ojd

MyCattle: Johne's Disease
   Articles and news about the disease.
   http://www.mycattle.com/health/focus/johnesmain.cfm

National Johne's Education Initiative
   Features disease information, objectives, activities, educational materials, and program information.
   http://www.johnesdisease.org/

Texas Animal Health Commission: Johne's Disease
   Factsheets, reference material, and information about the Texas voluntary Johne's Disease program for cattle.
   http://www.tahc.state.tx.us/animal_health/johnes/johnes.shtml

The 9th International Colloquium on Paratuberculosis
   Will take place in Tsukuba, Japan from Monday, October 29 through Friday, November 2, 2007.Includes program information, meeting registration, and speaker information.
   http://wwwsoc.nii.ac.jp/jsp3/9ICP/

USDA-APHIS-VS: Johne's Disease
   Factsheet with cause, symptoms, prevention strategies, and economic impact.
   http://www.aphis.usda.gov/animal_health/animal_diseases/johnes/index.shtml

United States Animal Health Association Committee On Johne's Disease
   Includes yearly reports, resolutions, publications, and member directory.
   http://usaha.org/committees/jd/jd.shtml

University of Missouri Extension: Johne's Disease or Paratuberculosis
   Origin, diagnosis and eradication.
   http://muextension.missouri.edu/xplor/agguides/ansci/g02115.htm

Wikipedia: Johne's Disease
   Encyclopedia article on the disease.
   http://en.wikipedia.org/wiki/Johne%27s_Disease

Wisconsin Johne's Disease Control Program
   Disease and program information, prevention practices, risk assessment checklists, and testing information.
   http://www.datcp.state.wi.us/ah/agriculture/animals/disease/johnes/index.jsp