Fig. 1. Morphometric examination of pork at the foot-and-mouth disease vaccine injection site.

(A) Normal – Typical presentation of a market pig carcass at slaughter, (B) Abscess – Arrows indicate pus from an abscess in the neck area, (C) Discoloration – Arrow indicates externally visible white-yellow lesions caused by vaccination, (D) Granulomatous nodules – Granulomatous lesions appeared as protruding, firm nodules within the muscle tissue.