VETERINARY HIGH-PRESSURE INJECTION INJURIES WITH INOCULATIONS FOR LARGER ANIMALS

Equipment used in the mass vaccination of farm stock is a source of hi gh pressure injection injury. We present four cases due to chicken vac cine, and one due to pig vaccine. Unlike injuries caused by paint or o il guns the vaccination delivers a fixed volume. Although the vaccine is in a mineral oil carrier it appears to elicit little inflammatory r eaction in a small dose. The outcome is related to the volume injected . In chicken vaccine the dose is small enough to allow conservative or minimally invasive management. The large volume in pig vaccine requir es treatment as for conventional high pressure injection injuries.