The incubation period of the disease is approximately three to seven days. Often animals may be '''discovered dead''' in the field before any clinical signs have been observed. In general, in non-immunised ruminants and horses the disease is characterised by sudden death, peracute septicaemia, bleeding from orifices and subcutaneous haemorrhages. Other clinical signs including the following have been described:
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The incubation period of the disease is approximately three to seven days. Often animals may be '''discovered dead''' in the field before any clinical signs have been observed. In general, in non-immunised ruminants and horses the disease is characterised by sudden death, peracute septicaemia, bleeding from orifices and subcutaneous haemorrhages. Other clinical signs including the following have been described: