Assertion: pathogen | /r/CapableOf | remain effective
Facets:
value: for a couple years
type: TEMPORAL
value: for weeks
type: TEMPORAL
value: for months
type: TEMPORAL
Source sentences:
text: And then, thanks to the ability of pathogens to quickly evolve around them, they only remain effective for a couple years, months, or weeks, as the case might be.
text: And then, thanks to the ability of pathogens to quickly evolve around them, they only remain effective for a couple years, months, or weeks, as the case might be.