Assertion: person | /r/HasProperty | infected for individual
Facets:
value: until the advanced disease stage
type: TEMPORAL
value: without symptoms
type: OTHER
value: without signs
type: OTHER
Source sentences:
text: For individuals which are infected by T. b. gambiense, which accounts for 98% of all of the reported cases, a person can be infected for months or even years without signs or symptoms until the advanced disease stage, where it is too late to be treated successfully.