Table 1. Statistical description of variables.

Variable	N	Mean	S.D.	Min	Max
mortalityr	17	3.073	1.25	0	4.641
perbed	17	22.808	22.222	1.845	95.206
mortality	17	170.706	551.124	0	2305
infect	17	3968.588	11812.091	11	49671
TD	17	1.546	.47	0.286	2.544
neighbor	17	.412	.507	0	1