Table 1.

Summary of the serum samples collected in Mississippi cattle.

Dataset	Year	Management style	Clinical signs	Age	Seropositive rate (n)	GMT
I	2014	Order-buyer	No	6–8 m	22.5% (89a)	1:91.9 (±56.0)
	2014	Order-buyer	Yes	6–8 m	32.7% (55)	1:172.8 (±215.7)
II	2013	Cow–calf operation	No	24–36 h	95.1 (284)	1:345.6 (±491.6)
	2014	Cow–calf operation	No	24–36 h	92.1 (164)	1:557.7 (±498.6)
III	2004	Cow–calf operation	No	6 m–12 y	18.3% (241)	1:146.9 (±45.9)
	2005	Cow–calf operation	No	6–8 m	14.8% (223)	1:63.5 (±30.2)
	2006	Cow–calf operation	No	6 m–14 y	13.5% (141)	1:83.0 (±53.9)

^aThese 89 sera were collected from 82 individual calves, and seven of these calves were sampled twice.