_:b57902541	<http://www.w3.org/ns/oa#exact>	"seroprevalence" .
_:b57902541	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57902540	<http://www.w3.org/ns/oa#hasSelector>	_:b57902541 .
_:b57902540	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6b182c2854786d165bb581cbfd77866012ff64cb/1> .