Title: NADIS - National Animal Disease Information Service
Headings: Erysipelas
Erysipelas
Fig 1: Sloughing of the skin of the scrotum secondary to necrosis following Erysipelas infection
Fig 2: Sloughing of the skin of the neck secondary to necrosis following Erysipelas infection
Clinical Signs
Fig 3: Classic 'diamonds' in a growing pig
Fig 4: 'Cauliflower' growths on heart valves (Endocariditis)
Fig 5: Crippling, irreversible arthritis in a growing pig (photo courtesy W J Smith)
Circumstances
Treatment
Control
Conclusion

Content: In rare cases the strain involved may not be covered by a commercial vaccine in which case if the problem persists in a herd an autogenous vaccine may be required produced under special licence using the specific farm isolate. In high-risk situations, vaccination of young stock from 6 weeks of age (either with a single dose or, if necessary, a 2 dose course) can be applied. The key to preventing Erysipelas arthritis rests in limiting exposure to the organism, which can come from several sources (i.e. birds, mice and other pigs). Bird scarers, bird netting, proximity of birds of prey and coverage of feed hoppers etc will all reduce the chances that feed will become contaminated with bird faeces. Likewise, a vigorous rodent control programme is essential. ( This also has benefits for Salmonella control and other biosecurity issues). Hygiene is also vitally important and where disease has occurred and ground becomes contaminated, a rest period of more than six months may be appropriate. Washing and disinfecting of pens, sty's or compounds, where feasible is also advisable. Avoid bird and rodent contamination of feed storage area. Conclusion
Erysipelas is a common infectious disease affecting all ages of pigs and is a particular problem in small populations that are not protected by vaccination.