id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-253143-73dsc6q3	Tang, Julian W.	Emerging, Novel, and Known Influenza Virus Infections in Humans	2010-08-02		.txt	text/plain	5007	248	45	Nevertheless, the plethora of epidemiologic, diagnostic, mathematical and phylogenetic modeling, and investigative methodologies developed since the severe acute respiratory syndrome outbreak of 2003 and the subsequent sporadic human cases of avian influenza have been applied effectively and rapidly to the emergence of this novel pandemic virus. 3 In addition, sporadic, generally mild (although there has been at least 1 recorded death because of H7N7) human infections resulting from occasional bird-to-human transmissions, with low pathogenic avian influenza strains (eg, subtypes H9N2, H7N7, H7N2, and H7N3) have been ongoing since 1997, when heightened surveillance for avian influenza viruses began (Fig. 2) . Analyses of the viruses that caused the 1957 and 1968 influenza pandemics therefore proved that zoonotic transmissions of influenza viruses (ie, from animals to man) with gene reassortment were capable of generating antigenically new influenza strains, novel to human immunity, with significant effects on the public health.	./cache/cord-253143-73dsc6q3.txt	./txt/cord-253143-73dsc6q3.txt