id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-339898-ptb6dst8	Bilinski, A.	Contact tracing strategies for COVID-19 containment with attenuated physical distancing	2020-05-08		.txt	text/plain	3414	187	44	10, 11 Several previous papers have considered the role of contact tracing for containment of COVID-19, [12] [13] [14] [15] but important questions remain about potential impact given uncertainty around the extent of presymptomatic and asymptomatic transmission of SARS-CoV-2 and the efficacy of voluntary isolation and quarantine. We defined scenarios by the fraction of symptomatic cases detected in the community (not linked to a tracked case), the fraction of contacts successfully traced, the isolation and quarantine efficacy among traced but undetected contacts, and whether testing was restricted to those with symptoms or includes all traced contacts ( Table 1) . Given the likely importance of levels of community testing as a prerequisite condition for contact tracing, we conducted a secondary analysis that quantified the combined benefit of scaling up both testing and contact tracing against a counterfactual in which detection of symptomatic cases remains constant at an assumed current fraction of 20%.	./cache/cord-339898-ptb6dst8.txt	./txt/cord-339898-ptb6dst8.txt