Assertion: bse | /r/HasAspect | long incubation period
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: BSE usually has a long incubation period, about four years, usually affecting adult cattle at a peak age onset of four to five years, all breeds being equally susceptible.
text: However, because BSE has a long incubation time, there was a lag between introducing this ban and a fall in the number of cases.
text: Although it has a long incubation period that can last as long as eight years, once the symptoms appear the animal will die within just a few short weeks or months.
text: BSE has a long incubation period, about 30 months to 8 years, usually affecting adult cattle at a peak age onset of four to five years, all breeds being equally susceptible.
text: Commonly known as 'Mad-Cow Disease', BSE has a long incubation period.