Some Important Diseases
Dysentery: This disease is caused by the bacteria Brachyspira hyodysenteriae.  Besides pigs, mice and rats can be infected with the pathogen.  Rodents do not get sick, but shed the bacteria with their faeces.  Needless to say, that animal feed can get infected in this way.  Faeces stay infectious for 12 days at room temperature.   Even by applying best disinfection practice after removal of all livestock from the stable, the pathogen will stay in the stable:  Mice, hiding in walls and ceilings perpetuate the bacteria.   They will re-enter the stable as soon as there is livestock and feed.  The pathogen was found in the intestines of mice trapped in stables with an outbreak of dysentery.
Salmonellosis: One dropping of a mouse may contain 10,000 bacteria of the genus Salmonella.  This pathogen has been found in most mice trapped on poultry farms with persistent Salmonella-infection in the chickens.  It has also been shown in an experiment, that three week old chickens can get infected with Salmonella through mice droppings.  Salmonella is also distributed from mouse to mouse.  House mice therefore maintain the pathogen in a stable or other situation, even if livestock is removed and the stable is disinfected.  They are therefore a high risk for new healthy livestock.
Toxoplasmosis: Mice and rats are intermediate hosts of this single cell parasite.  Cats, which prey on infected mice, acquire the parasite.  They shed oocysts with their faeces after the parasite has reproduced in their intestines.  Oocysts are infectious for man and pigs, e.g.  Pigs can also become infected by eating mice and rat carcasses.

Erreger (Pathogene), die in Mäusen nachgewiesen wurden

Erreger Krankheit Übertragungsweg Literatur Leptospira interrogans, arborea Leptospirosis Urine 1), 2) Salmonella typhimurium Enteritis Faeces 3), 4) Brachyspira hyodysenteriae Dysentery Faeces 5) Pasteurella pneumotropica Pasteurellosis Aerosol 6) Campylobacter jejuni Dysentery Faeces 6) Toxoplasma gondii Toxoplasmosis Muscle 7) Trichinella spiralis Trichinosis Muscle 8) Listeria monocytogenes Listeriosis

References   1) Mailloux, M. (1957): Leptospiroses = Zoonoses. Int. J. Zoon. 2 , 45-54.   2) Collares-Pereira, M. et al. (2000): Europ. J. Epidem. 16 (12), 1151-57.   3) Jones, P.W., Twigg, G. (1976): Salmonellosis in wild mammels. J. Hyg. Cambridge 77, 51-54.   4) Davies, R.H., Wray, C. (1995): Mice as carriers of Salmonella enteritidis on persistently infected poultry units. Veterinary Record 137 , 337-341.   5) Joens, L. A.; Kinyon, J. M. (1982): Isolation of Treponema hyodesenteriae from wild rodents. J. Clin. Microbiol. 15 (6), 994-997.   6) Le Moine, V. et al. (1987): Microbiological studies of wild rodents in farms as carriers of pig infectious agents. Prev. vet. Med. 4 , 399-408.   7) Lubroth, J.-S. et al. (1982): The role of rodents and other wildlife in the epidemiology of swine toxoplasmosis. Prev. Vet. Med 1 , 169-178.   8) Holliman, R. B.; Meade, J. B. (1980): Native trichinosis in wild rodents in Henrico county, Virginia. J. Wildl. Dis. 16 (2), 205-207.