Multiple abscesses in a pig caused by Trueperellapyogenes (Arcanobacterium pyogenes): Case report

Abstract

A two-year-old male Duroc Jersey pig with 250 kg body-weight presented a swollen mass tissue of hardconsistency in the ventral side of the neck skin fold and severe inflammation at the tarsal joint of the righthind limb. The Gram-positive bacteria Trueperella (Arcanobacterium) pyogenes was isolated in pure culture bymicrobiological methods and was sensitive to several antibiotics including Gentamicin and Sulfa-trimethoprim.The abscesses were drained and the pig treated with sulfa-trimethoprim at 20 mg/kg for 5 d and later withgentamicin at 5 mg/kg for 5 d together with anti-inflammatory drugs. The abscesses re-emerged and the pigwas sacrificed and the anatomo-pathological findings at necropsy recorded. T. pyogenes caused severesuppurative arthritis and cutaneous abscesses in a pig, suggesting the need of surveillance and rapid diagnosticsmethods in the Tolima pig industry.