Fig. 1

A map of Estonia showing the geographical location of the farms included in this study. From each herd, 5–52 breeding pigs were tested for specific antibodies against Toxoplasma gondii. The herds with at least one T. gondii seropositive pig are marked with red dots and the herds with no T. gondii seropositive breeding pigs are marked with blue dots. The northern counties are shown with dark grey color, and the southern counties are shown with light grey color. The exact location of one herd with at least one T. gondii seropositive breeding pig and one herd with no T. gondii seropositive breeding pigs, both located in the southern part of the country, were unknown