Table 2.

Risk factors for secondary cases after importation (univariate analysis)

Variable	OR	95 % CI	P
Onset before importation	0.2	[0.00, 1.7]	0.19
Infection risk period (per day)	1.7	[1.2, 6.7]	0.04
Time before hospitalization (per day)	1.1	[0.7, 1.6]	0.62
Time in the hospital (per day)	1.7	[1.2, 7.3]	0.02
Number of visited healthcare facilities	3.3	[1.2, 25.4]	0.05
Declared history of travela (No vs. Yes)	8.2	[0.32, 625]	0.21

^ainformation available for 15 cases out of 22