Fig. 2

Gross pathology and necropsy collection outline detailing levels of inflammation. Gross pathology of 1428’s infected quarter (a, b). Note multifocal purulent exudate found in abscesses surrounded by fibrous connective tissue. The mammary gland was sampled as detailed in (c), capturing tissue from physiologically meaningful regions of the mammary gland. Also depicted, general levels of inflammation found at each section level (c). Diagram in (c) adapted from [25]