id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-024564-ff5ex004	Ricoca Peixoto, Vasco	Epidemic Surveillance of Covid-19: Considering Uncertainty and Under-Ascertainment	2020-04-09		.txt	text/plain	2792	135	44	Addressing under-ascertainment of cases is relevant in most surveillance systems, especially in pandemics of new diseases with a large spectrum of clinical presentations as it may influence timings of policy implementation and public risk perception. From this perspective, this article presents and discusses early evidence on under-ascertainment of COVID-19 and its motifs, options for surveillance, and reflections around their importance to tailor public health measures. In the case of COVID-19, systematically addressing and estimating under-ascertainment of cases is essential to tailor timely public health measures, and communicating these findings is of the utmost importance for policy making and public perception. One document of the European Centre of Disease Control (ECDC) [10] reports that "the detection of CO-VID-19 cases and/or deaths outside of known chains of transmission is a strong signal that social distancing mea-sures should be considered." However, with restrictive testing strategies, these signals may be missed.	./cache/cord-024564-ff5ex004.txt	./txt/cord-024564-ff5ex004.txt