Assertion: op swab | /r/CapableOf | detect the covid-19 virus
Facets:
value: less frequently than np swabs
type: DEGREE
Source sentences:
text: The smaller study by Wolfel found no difference in detection rates between OP and NP but Yang, the larger of the two studies, reported OP swabs detected the COVID-19 virus less frequently than NP swabs and should not be used in place of NP swabs.