id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-269623-9pxdeva3	Nicholson, Karl G	Influenza	2003-11-22		.txt	text/plain	9797	506	43	The contrast between recent cases of H5N1 infection, associated with high mortality, and the typically mild, self-limiting nature of human infections with avian H7N7 and H9N2 influenza shows the gaps in our understanding of molecular correlates of pathogenicity and underlines the need for continuing international research into pandemic influenza. We gave priority to randomised controlled trials when available, to larger studies, articles published in high-impact journals that have a wide readership, and the systematic review and economic decision modelling, for the prevention and treatment of influenza, commissioned by the Health Technology Assessment Programme on behalf of the National Institute of Clinical Excellence. A meta-analysis of reports published before 2001 showed that vaccination reduces numbers of cases of influenza-like illness by 35%, hospital admissions for pneumonia and influenza by 47%, and all-cause mortality by 50%.	./cache/cord-269623-9pxdeva3.txt	./txt/cord-269623-9pxdeva3.txt