| seroepidemiology of toxoplasma gondii among pregnant women in different parts of sweden. | surveys of pregnant women in four areas of sweden in 1987-88, reveal a significant trend for decrease in toxoplasma seroprevalence from gotland island (26%, n = 467) in the south through orebro county (18%, n = 1413) and stockholm area (18%, n = 939), to northern sweden (12%, n = 837). no within area differences were observed between samples from rural and urban localities. quantitative antibody data indicate marginally higher levels in the north than in the south, and a significant declining tr ... | 1995 | 7672068 |