Table 3. Paired comparisons between cPCR results obtained from different swab samples in 28 naturally infected dogs.

	Positivity/sample
Positivity/sample	Oral Swab	Ear Swab
	(22/28) 79%	(12/28) 43%
Nasal swab*	P>0.05	P = 0.029
(21/28) 75%
Conjunctival swab**	P>0.05	P>0.05
(15/28) 54%
Ear swab	P = 0.013	-
(12/28) 43%

^*Only the left nostril was considered;

^**Only the left conjunctiva was considered;

The p values were calculated using Fisher's exact test.