id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-318058-s8vvfejn	Bellido-Blasco, J.B.	Epidemiology of Infectious Diarrhea	2011-03-03		.txt	text/plain	6280	348	46	From the epidemiological point of view, the cases can be sporadic or epidemic, and identification of the infection source and transmission mechanism is important for prevention and control. Even when incidences of the infection do not display such great geographic differences, in the case of some viruses, the indicators in terms of its lethality are noticeably different; for example, rotavirus is very frequent in all types of countries, but its severity (mortality rate) is greater in poor countries. Steen Ettenberg and other collaborators performed a specific study on cases registered throughout Denmark in the 1990s and found that 13.3% of Salmonella enteritidis, 10.4% of Shigella sonnei, 5.6% of Salmonella serotype Typhimurium, 3.2% of Campylobacter, and 2.0% of Yersinia enterocolitica cases belonged to this type of clusters, which is a large majority unknown to epidemiological monitoring systems. The study of risk factors in Campylobacter infection presents difficulties given that the majority of cases are sporadic and in children under the age of 2 years.	./cache/cord-318058-s8vvfejn.txt	./txt/cord-318058-s8vvfejn.txt