id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-321267-ihd30qi0	Daughton, Christian G.	Natural experiment concept to accelerate the Re-purposing of existing therapeutics for Covid-19	2020-05-15		.txt	text/plain	5350	263	45	Proposed here is a new but simple concept that would capitalize on the opportunity presented by the on-going natural experiment involving the collection of data from epidemiological surveillance screening and diagnostic testing for clinical treatment. These drug usage data would be collected for several major test groups those who test positive for active SARS-CoV-2 infection (using molecular methods) and those who test negative for current infection but also test positive for past infection (using serologic antibody tests). (1) As Covid-19 epidemiological surveillance screening and diagnostic testing proceeds, a national database would be continually populated with drug usage data collected from each case among three different combinations of sub-groups based upon whether they tested positive or negative for active SARS-CoV-2 infection or tested positive for past SARS-CoV-2 infection (see Table 1 ).	./cache/cord-321267-ihd30qi0.txt	./txt/cord-321267-ihd30qi0.txt