Effectiveness and costs of interventions to reduce the within-farm Toxoplasma gondii seroprevalence on pig farms in the Netherlands

Table 4 Seroprevalence results per principal intervention measure for the five pig farms during the intervention period

Principal intervention measure	Farm #	Odds Ratio (95% CI)	Reduction in seroprevalence (%)
Cat neutering	1, 2, 3	0.33 (0.22 – 0.45)	67 % (55% – 78%)
Professional rodent control	4	3.00 (0.13 – 14.60)	n.a.^a
Feed coverage	5	0.04 (-∞ – 0.23)	96 % (77% – 100%)

^aThe estimated reduction in seroprevalence was only calculated for the intervention measure where the OR 95% confidence interval did not include 1

ISSN: 2055-5660