id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-263893-zb6h3q4k	nan	What to expect from COVID-19 serology in a period of deconfinement?	2020-06-01		.txt	text/plain	710	37	51	The level of immunity of the French population to Sars-CoV-2 thus seems very low, far from the theoretical threshold of 60% which would allow us to expect a collective level of protection. It should be noted, however, that even if a test with a specificity of 98% is used, the positive predictive value of seropositivity will only be 50% in all regions of the country spared by the epidemic, where seroprevalence is estimated an average of 2% [3] . • that only those tests that will be recommended by the CNRs and validated by the Ministry of Health and Solidarity be used, whether they are unit tests or Elisa tests; • that the sero-epidemiological population surveys be coordinated by the Regional Health Authority (ARS) and that each person recruited be informed personally and confidentially of his or her serological status;	./cache/cord-263893-zb6h3q4k.txt	./txt/cord-263893-zb6h3q4k.txt