[An epidemiological survey of hydatidosis among 27,051 persons in Shihezi district]

An epidemiological survey of hydatidosis was carried out among 27,051 persons in Shihezi District, 784 were found to be positive cases and the total standardized infection rate of hydatidosis was 2.84%. Among all farms, the infection rates in the No. 133, No. 152 and No. 135 farms were the highest. The infection rates among various nationalities were 6.69% (Kazak), 4.04% (Uygur), 3.42% (Hui), 2.39% (Han). There was a significant difference between males (2.35%) and females (3.33%) (P < 0.01). The young children were the majority (56.02%) among the positive cases. This investigation was carried out from about 1/20 of the total population (532,157 persons) and showed the infective state of hydatidosis in Shihezi District basically. The method of blood spot-ELISA on filter paper which was used instead of serum-ELISA simplified the procedure and cut down expenses, being particularly suitable for a large-scale investigation.