We have, during December and January, seen the first clinical cases of SBV in deformed lambs in Wales, 21 as at 11 January.
Yn ystod mis Rhagfyr a mis Ionawr, daethom o hyd i’r achos clinigol cyntaf o SBV mewn oen wedi’i gamffurfio - ar 11 Ionawr, roedd 21 o achosion o ŵyn wedi’u hanffurfio.