id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-311539-pbzb0jjt	Puro, V.	Clustered Cases of Pneumonia among Healthcare Workers over a 1-year Period in Three Italian Hospitals: Applying the WHO SARS Alert	2006		.txt	text/plain	1741	76	52	BACKGROUND: The World Health Organization (WHO) has recommended that a severe acute respiratory syndrome (SARS) alert should be raised when two or more healthcare workers (HCW) in the same health care unit fulfil the SARS clinical criteria, with onset of illness in the same 10-day period. To detect the possible re-emergence of severe acute respiratory syndrome (SARS), the World Health Organization (WHO) has recommended the implementation of an alert system based on the surveillance of healthcare workers (HCW): an alert should be raised when two or more HCW in the same health care unit fulfil the clinical criteria for SARS, with onset of illness in the same 10-day period [1] . To try to determine the minimum number of pneumonia alert cases that should define a SARS alert cluster in Italy, we analyzed sickness absences longer than 7 days, which occurred among HCW employed in three Italian hospitals in 2003.	./cache/cord-311539-pbzb0jjt.txt	./txt/cord-311539-pbzb0jjt.txt