As the lambing season begins in Wales there are fears that farmers could be left badly out of pocket as they count the cost of the Schmallenberg virus.
The virus is spread by midges and can cause death or deformity in newborn stock. Some farmers who've been lambing early say they've already seen half their lambs killed.
Cattle farmers are also warning that Schmallenberg may have caused infertility in their cows. And with three months to go before the end of the lambing and calving seasons, the problem could get much worse. Hannah Thomas has more.
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