Potential risk factors for the presence of anti-Toxoplasma gondii antibodies in finishing pigs on conventional farms in the Netherlands

Table 1 Frequency distribution (n) of 69 Dutch finishing pig farms, their tested sera, and the positive tested sera related to the percentage of within-farm T. gondii positive seroprevalence

Seroprevalence at finishing pig farm (%)	N (%) farms	N sera tested	N sera positive
0	25 (36)	800	0
0–5	19 (27)	2836	51
5–10	8 (12)	555	33
10–20	11 (16)	744	106
> 20	6 (9)	199	69
Total	69 (100)	5134	259

ISSN: 2055-5660