Assertion: classical bse | /r/AtLocation | the uk cattle population
Facets:
value: probably
type: DEGREE
value: since the 1970’s
type: TEMPORAL
value: since earlier
type: TEMPORAL
Source sentences:
text: Classical BSE had probably been present in the UK cattle population since the 1970’s or earlier, but was initially diagnosed in cattle in 1986, subsequently developing into a European and then global animal health and food safety concern.