If you are monitoring mice (such as pets or in a lab setting), look for these common clinical signs of distress or disease:

: A serious respiratory disease transmitted through contact with infected rodent urine, droppings, or saliva. Initial symptoms are flu-like but can rapidly progress to severe breathing difficulties.

For in-depth pathological data and research-grade guides, the following platforms are authoritative sources: Mouse Genome Informatics (MGI) Database - Norecopa

: A bacterial infection typically spread through soil, food, or water contaminated with the urine of infected mice.

: Labored or rapid breathing and nasal or ocular discharge.

: Hunched posture, sunken eyes, and a poor or "scruffy" haircoat.