Assertion: swab | /r/CapableOf | use a downstream assay
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Source sentences:
text: The testing could be conducted in a parallel study design to compare the non-traditional swab to a swab that is currently on the market for collection from the target sample site (e.g. nasal, nasopharynx) and comparative testing using a downstream assay (e.g. molecular (PCR) or antigen detection).