Yn 2018, cafwyd 746 o fuchesi ag achosion newydd o TB yng Nghymru, 5% yn llai nag yn 2017. O'r achosion hynny, cafodd 11,233 o anifeiliaid eu difa oherwydd TB, sef cynnydd o 12%. Y rheswm pennaf am y cynnydd yw'r mesurau gwyliadwriaeth llymach a'n llwyddiant i nodi a difa nifer fwy o anifeiliaid heintiedig wrth inni ennill y blaen ar y clefyd.
In 2018, there were 746 new TB herd incidents in Wales, representing a 5% decrease compared to 2017.  Of these incidents, 11, 233 animals were slaughtered as a result of TB, representing a 12% increase.  This increase is largely due to heightened surveillance and the identification and removal of a higher number of infected animals as we get ahead of the disease.