TABLE 2.

Comparison of Anaplasma prevalences between different hosts^a

Comparison	Significance by region and species
	Western region				Eastern region				Total
	Anaplasma spp.	A. marginale	A. ovis	A. phagocytophilum	Anaplasma spp.	A. marginale	A. ovis	A. phagocytophilum	Anaplasma spp.	A. marginale	A. ovis	A. phagocytophilum
Cattle vs
Goats	***	***	**	NS	33.44***	**	***		11.92***	***	***	NS
Sheep	NS	***	***	NS	13.41***	***	***		NS	***	***	NS
Horses	31.93***	***		NS	***	***	NS	NS	***	***		NS
Dogs	***	***		NS	*	NS	NS	***	***	***		**
Mice	***	***		NS	*	*	NS	*	***	***		NS
Goats vs
Sheep	***		**	NS	6.38**		***	NS	18.84***		NS	NS
Horses	NS				***		***	NS	***		***	NS
Dogs	NS				***		**	**	**		***	**
Mice	*		*		***		***	NS	***		***	NS
Sheep vs
Horses	***		**	NS	***		***	NS	***		***	NS
Dogs	***		**	NS	***		NS	**	***		***	*
Mice	***		***	NS	***		*	NS	***		***	NS
Horses vs
Dogs					NS			**	NS			*
Mice					NS			NS	NS			NS
Dogs vs mice					NS			NS	NS			NS

^aThe infection prevalence between host species for Anaplasma spp., A. marginale, A. ovis, and A. phagocytophilum was analyzed as described for Table 1 (the χ² value is included when the χ² test was used and the value was significant; *, P ≤ 0.05; **, P ≤ 0.01; ***, P ≤ 0.001; NS, not significant).