TABLE 3.

Serologic results for kennel dogs in 1997

Antigen	19 May		5 June			19 June		6 September
	No. of dogs tested	% Seroreactive	No. of dogs tested	% Seroreactive	% Seroconversion	No. of dogs tested	% Seroconversion	No. of dogs tested	% Seroreactive	% Seroconversion
E. canis	25	92	27	85				20	85
E. chaffeensis	23	91	27	89				20	80
E. equi	25	80	9	89				20	80
Ehrlichia spp.	25	92	27	89				20	90
B. vinsonii	25	72	11a	91				21	100
B. canis	25	44	0	NAb				20	45
R. rickettsii			25c		56	25	60	20		95

^aTwo of 11 samples were drawn on 19 August. 

^bNA, not available. 

^cThe number of dogs still alive from which at least two samples had been drawn by the specified date.