Table 2.

Coho salmon Oncorhynchus kisutch Walbaum injected with medium (mock), PRV‐ homogenate, PRV + homogenate (derived from a laboratory challenge of Atlantic salmon Salmo salar L.) and PRV + homogenate (derived from a naturally infected Atlantic salmon) were examined for histopathological lesions in the heart (number of individuals with lesions/number of individuals examined). Representative images of heart lesions observed are presented in Figure S3

Day	Mock	PRV−	PRV+ lab	PRV+ field
14	0/4	0/4	0/4	0/4
21	0/4	0/4	0/3	1/4
28	1/4	0/4	1/4	1/4
42	2/4	1/4	0/4	0/4
62	4/4	2/4	1/4	2/4
87	1/4	1/4	1/4	1/4
Total	8/24	4/24	3/23	5/24