Table 1.

Total numbers of serum samples grouped and evaluated based on agglutination assays

Group	Serological characteristics of samples	Total no. of samples
I	RBPT negative, STAT negative, 2ME test negative, and healthy donors (n = 20)	409
II	RBPT positive, STAT negative, and 2ME test negative	9
III	RBPT positive, STAT positive, and 2ME test negative	17
IV	RBPT positive, STAT positive, and 2ME test positive and culture-positive cases (n = 15)	33
Total		468