id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-320295-k2i52wgs	Woolhouse, Mark E.J.	Host Range and Emerging and Reemerging Pathogens	2005-12-17		.txt	text/plain	3402	169	46	However, although zoonotic pathogens do represent the most likely source of emerging and reemerging infectious disease, only a small minority have proved capable of causing major epidemics in the human population. All the defined host types are potential sources of zoonotic infections, but differences occurred in their importance (ranked by number of pathogen species supported) across viruses, bacteria, fungi, protozoa, and helminths and no 1 type consistently dominates ( Figure 1A) , although ungulates are the most important overall, supporting over 250 species of human pathogen. However, when the fraction of emerging and reemerging species is compared with the breadth of host range (as the number of host types other than humans), a pattern becomes apparent (Figure 2) . Relationship between breadth of host range (as number of nonhuman host types, as listed in Figure 1 ) and the fraction of pathogen species regarded as emerging or reemerging.	./cache/cord-320295-k2i52wgs.txt	./txt/cord-320295-k2i52wgs.txt