Occurrence: Worldwide. Species affected: All. Age affected: All.

Causes: House mouse- Mus musculus is the most common.

Effects: Contaminate feed and litter with their excrement. Particularly hazardous to Salmonella control programs since they are frequently infected. Burrowing and gnawing activity can undermine foundations and destroy curtains and insulation. They eat and/or contaminate feed, leading to increased feed costs and decreased efficiency...