[Epidemiological study on Toxoplasma infection in human beings and animals in Shandong Province].

A total of number of 6822 samples of human serum and 3093 samples of animal serum collected from 7 prefectures and cities were detected for the anti-toxoplasma antibodies by using the indirect hemagglutination (IHA) test in Shandong province. The positive rate of population was 4.06 +/- 0.24%. The antibody positive rates of swine, sheep, rabbits, chicken and ducks were 14.05%, 8.52%, 2.43%, 2.98% and 23.33% respectively. After the data were treated with groups analysis and stratified analysis, it was found that rearing cats and contacting with raw pork frequently were two important risk factors for human. The Relative Risk (RR) of the two factors were estimated to be 3.67 and 2.07 respectively. There was a very strong correlation between spontaneous abortion, stillbirth history and toxoplasma infection (RR = 7.44, P less than 0.001).