Table 2. Gross pathologic assessment at necropsy.

Animal	Route	Lung Lobes	Peripheral Lymph Nodes1	Bowel	Spleen	Heart	Other
08204	IT	Extensive congestion, hyperemic, with multifocal areas of consolidation.Tracheal mucosa congested and edematous	Minimally congested & edematous	Diffusely distended with gas; ingesta and digesta minimal	Turgid, slightly friable & engorged with blood	Edema of mediastinum & pericardial connective tissue	Left Kidney enlarged, friable, congested; hemorrhage found in pylorus, duodenum, and urinary bladder mucosa
08213	IT	Mottled, hemorrhagic & congested. Severity greatest in caudodorsal lobes. Tracheal mucosa is hemorrhagic, congested and edematous	Minimally congested & edematous	Diffusely distended with moderate amounts of gas; ingesta and digesta minimal	Turgid, slightly friable	Abundant gelatinous edema of mediastinum and pericardial connective tissue	Urinary bladder and uterus had multifocal mucosal hemorrhage
08181	IT	Slightly congested/hyperemic with a few areas of consolidation. Severity greatest in caudodorsal lobes which have multifocal hemorrhage. Tracheal mucosa is hemorrhagic, congested and edematous	Minimally congested & edematous	Mildly distended with gas; ingesta and digesta minimal	Turgid, slightly friable, congested	Abundant gelatinous edema of mediastinum and pericardial connective tissue	Adrenals slightly congested; pylorus & duodenum have scattered petechial hemorrhages on mucosa, with serosal hemorrhage and edema surrounding the duodenum and pancreas
08210	Aerosol	Mildly congested with small multifocal areas of hemorrhage in cranial and caudodorsal lobes. Tracheal mucosa is congested and edematous	Minimally congested & edematous	Ingesta and digesta minimal	Turgid, slightly friable	Edema of the mediastinum and pericardial connective tissue	Multifocal mucosal hemorrhage of urinary bladder mucosa
08095	Aerosol	Mildly congested with multifocal areas of hemorrhage, primarily in caudodorsal lobes. Tracheal mucosa is congested and edematous	Minimally congested & edematous	Ingesta and digesta minimal	No changes noted	Edema of the mediastinum and pericardial connective tissue	Multifocal mucosal hemorrhage of urinary bladder mucosa
08206	Aerosol	Mildly congested with small multifocal areas of hemorrhage primarily in the caudodorsal lobe	Minimally congested & edematous	Ingest and digesta minimal	Turgid, slightly friable	Edema of mediastinum and pericardial connective tissue	Multifocal mucosal hemorrhage of urinary bladder mucosa

¹Both axillary and inguinal lymph nodes.