Table 2.

Categorization of potential risk factors for being naturally exposed to Bordetella bronchiseptica

Potential Bordetella exposure variables	Bordetella exposure risk category
Boarded (previous 12 months)
a. None	0
b. 1 time	1
c. 1 to 2 times	2
d. 2 times	3
e. 2 to 3 times	4
f. 3 times	5
g. 3 to 4 times	6
h. > 4 times	7
i. Other	8
Groomed (last 12 months)
a. None	0
b. Monthly	6
c. Every other month	5
d. 4 to 5 times per year	4
e. 2 to 3 times per year	3
f. 1 time per year	2
g. Other (stated regularly but not specified)	1
Other factors in last 12 months for risk of exposure
a. None	0
b. Dog park	1
c. Travel with family	1
d. Interact with other dogs	1
e. Fostering other dogs (75 dogs in a home)	2