It can cause brief mild/moderate disease in adult cattle and late abortion or birth defects in newborn cattle, sheep and goats.
Mae’n gallu achosi clefyd ysgafn/cymhedrol byr mewn gwartheg llawndwf ac mae ŵyn, lloi a mynnod geifr yn gallu cael eu herthylu’n gynnar neu eu geni â nam arnynt.