id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-337692-b89ow1mf	Petti, S.	Ecologic association between influenza and COVID-19 mortality rates in European countries	2020-09-11		.txt	text/plain	5103	251	41	Ecologic studies investigating COVID-19 mortality determinants, used to make predictions and design public health control measures, generally focused on population-based variable counterparts of individual-based risk factors. We considered the 3-year average influenza (2014–2016) and COVID-19 (31 May 2020) crude mortality rates in 34 countries using EUROSTAT and ECDC databases and performed correlation and regression analyses. An apparently perplexing characteristic of the reported association between the two mortality rates was that while influenza virus circulation during the seasons considered in the present analysis was uncontrolled, SARS-CoV-2 circulation was probably limited by the widespread exceptional public health measures implemented in Europe [32] . This study reported an inverse association between number of hospital beds and mortality rates (Table 2) , thus showing that high influenza and COVID-19 mortality was also due to inefficiencies of the healthcare systems, and corroborated by data from several European countries [45] .	./cache/cord-337692-b89ow1mf.txt	./txt/cord-337692-b89ow1mf.txt