_:b57279976	<http://www.w3.org/ns/oa#hasSelector>	_:b57279977 .
_:b57279977	<http://www.w3.org/ns/oa#exact>	"seroprevalence" .
_:b57279977	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57279976	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/307179cebf2bf9f9107f745af8f2899db6c51ca9/1> .