Occasionally it may be seen in gilts, even maiden gilts, although this is uncommon unless there has been gross and prolonged faecal contamination of the vulva. Sows die rapidly or respond poorly to treatment remaining chronically diseased. Disease can be so acute that death is the only sign. It is more common in the first 21 days post mating because the urine of the sow becomes alkaline and both A.suis and E.coli will survive and multiply in alkaline urine. Reproductive failure is not associated with this disease specifically unless the sow is ill and as a consequence either dies or aborts.
High mortality affects overall sow mortality and therefore pregnancy survival.
Uncommon Sows Appear ill. Red rimmed eyes - membranes red. The area around the vulva is wet and soiled with evidence of blood and pus in the urine. Death - high mortality Abortion Chalky mineral deposits. May grind teeth.