Table 1.

Reactions of Dog Serum to IFA in Sri Lanka, 2010

			Serum samples positive for
Area	No. of samples	No. of positive samples	RC only	OT only	RT only	RC and OT	RT and OT	RC, OT, and RT
Rajawatta	32	15 (47%)	7 (22%)	4 (12%)	1 (3%)	2 (6%)	1 (3%)	0 (0)
Thambavita	18	12 (67%)	10 (55%)	0 (0)	0 (0)	2 (11%)	0 (0)	0 (0)
Western Slopes	23	23 (100%)	4 (17%)	1 (4%)	0 (0)	17 (74%)	0 (0)	1 (4%)
Unawatuna	50	10 (20%)	9 (18%)	1 (2%)	0 (0)	0 (0)	0 (0)	0 (0)
Total	123	60 (49%)	30 (24%)	6 (5%)	1 (1%)	21 (17%)	1 (1%)	1 (1%)

IFA, immunofluorescence antibody test; RC, Rickettsia conorii; OT, Orientia tsutsugamushi; RT, Rickettsia typhi.