(a) Sheep and goats in an affected herd or flock;

(b) Sheep and goats that were obtained from a herd or flock that was subsequently found to be an affected herd or flock. Epidemiological information such as test results, herd/flock history, and related evidence will be used to establish a probable date when the herd or flock was first affected with brucellosis. Animals removed from the herd or flock after that date will be considered exposed to the disease and eligible for indemnity; those removed before that date will not;

(c) Individual horses that have been found to be brucellosis reactor animals.