Analysis of results of surveillance of soil-transmitted nematodiasis in Baisha county of Hainan province from 2010 to 2012

Objective To analyze the infection status and grasp the epidemic regularity of soil- transmittednematodiasis in Baisha county of Hainan province from 2010 to 2012,and to provide scientific basis for evaluation of soil-transmitted nematode control effect and development of effective prevention and control measures.Methods The Kato-Katz's thick smears and adhesive tape test were used to investigate the infection status of soil-transmitted nematodes among thelocal residents. Results A total of 3 045 people were examined from 2010 to 2012,including 1 556 males and1 489 females.The infection rates of roundworm,whipworm and hookworm were 0.45%,11.31% and 9.70% in males and0.54%,10.41%,and 13.70% in females respectively.The total infection rates of soil-transmitted nematodes from 2010 to 2012 were 25.69%,22.61% and 17.06%,respectively. The infection rates of roundworm,whipworm,hookworm and pinworm in 2010 were 0.60%,12.30%,14.98 and 34.21%,respectively. The infection rates of roundworm,whipworm,hookworm and pinworm in2011 were 0.87%,11.79%,10.72% and 38.78%. The infection rates of roundworm,whipworm,hookworm and pinworm in 2012 were 0.00%,8.48%,9.28%and 36.31%,respectively. Conclusion The monitoring in 2010-2012 revealed a decreasing soiltransmitted nematodes prevalence but showed a relatively high infection rate of pinw orm in the children.