Table 1. Distribution of titers against Coxiella burnetii phase II antigen among dairy cattle farmers in Korea.

Titer	IgG	IgM
	No. (%)	No. (%)
< 1:16	1,089 (89.1)	1,221 (99.9)
1:16	31 (2.5)	1 (0.1)
1:32	43 (3.5)	0 (0.0)
1:64	30 (2.5)	0 (0.0)
1:128	21 (1.7)	0 (0.0)
≥ 1:256	8 (0.7)	0 (0.0)
Total	1,222 (100.0)	1,222 (100.0)

IgG = immunoglobulin G, IgM = immunoglobulin M.