[Two surveys of human important parasitic diseases in Xihu District, Hangzhou City].

OBJECTIVE: To understand the status and epidemic rules of human important parasite infections, and evaluate the control effect in Xihu District, so as to provide evidence for improving future parasitic disease control. METHODS: Two surveys were performed in 2003 and 2009 in accordance with The Regulations of National Survey of the Distribution of Human Parasites, respectively. RESULTS: Four kinds of parasites were identified in 2003. The total infection rate was 7.81%, and the infection rates of hookworm, Ascaris lumbricoides, Trichuris trichiura, and Enterobius vermicularis were 5.61%, 0.13%, 1.83% and 4.43%, respectively. In 2009, the total rate was 2.07% and the infection rate of hookworm was 1.87%, while the infection rates of Ascaris lumbricoides, Trichuris trichiura and Enterobius vermicularis were all 0.10%. The high-risk groups were the low age group and middle-aged group. CONCLUSION: The total infection rate of human parasites and each parasite infection rate in Xihu District have declined significantly, and hookworm is the main kind of human parasite in the district.