Skip to main content

View full-text article in PMC

. 2008 Feb 28;8:23. doi: 10.1186/1471-2334-8-23

Table 4.

Travel volume (number of trips per year) to the US and to HA-endemic countries, 1995.

Parameter	Value	Parameter	Value
$θ_{1}^{U S}$	554,000	$θ_{1}^{e n d}$	33,000
$θ_{2}^{U S}$	542,000	$θ_{2}^{e n d}$	33,000
$θ_{3}^{U S}$	767,000	$θ_{3}^{e n d}$	83,000
$θ_{4}^{U S}$	1,553,000	$θ_{4}^{e n d}$	246,000
$θ_{5}^{U S}$	2,627,000	$θ_{5}^{e n d}$	360,000
$θ_{6}^{U S}$	5,559,000	$θ_{6}^{e n d}$	757,000
$θ_{7}^{U S}$	3,061,000	$θ_{7}^{e n d}$	404,000