For investigating Xichang pigs trichina infection condition, we examined the muscle and serum from 4 specifying slaughter house in Xichang.

为摸清西昌市生猪旋毛虫感染的强度和分布情况，我们对从我市4个定点屠宰场采集的生猪血清和膈肌进行检验。

The event at the Cairo Opera House highlighted the threat of AIDS in a country where prevalence of the disease is low, but where the rate of infection is increasing rapidly.

开罗歌剧院的活动强调了AIDS在一个患病率很低然而感染率迅速增长的国家的威胁。

For investigating Xichang pigs trichina infection condition, we adopted ELISA and the microscope examination methods to examine the muscle and serum from 4 specifying slaughter house in Xichang.

为摸清西昌市生猪旋毛虫感染的强度和分布情况，我们采用酶联免疫吸附试验（ELISA）法和常规压片镜检法对从我市4个定点屠宰场采集的生猪血清和膈肌进行检验。