The DoD diagnosis data contained 1,939,993 facilitysyndrome days from 308 facilities in 48 states with an overall mean of 7.7 counts per facility per day; of the 11 syndromes, respiratory visits comprised the highest percentage (16% of total facility-syndrome days) and had the highest mean count (26.0 visits per facility per day) ( Table 1 ). The hospital ED data contained 768,195 facility-syndrome days from 340 facilities in 21 states and had an overall mean of 7.8 counts per facility per day; no visits for lymphadenitis and severe injury and death were included because no facilities had a mean count >0.5 per day for these syndromes.