[Effect of comprehensive care for chronic filariasis patients with lymphedema].

OBJECTIVE: To evaluate the effect of chronic filariasis patients with lymphedema after comprehensive cared. METHODS: A total of 386 chronic filariasis patients with lymphedema received the comprehensive care including soaking feet by TCM, washing feet by single Chinese medicine or clear water, preventing and eliminating invasive wound, physical training, raising the limb, and wearing suitable shoes. The attack frequency of inflammation of lymphatic vessels, the stage of lymphedema disease, and leg circumference were observed before and after the care. RESULTS: After the comprehensive care, the attack rates of inflammation of lymphatic vessels decreased from 9.65% to 4.67%, and there was a significant difference (χ2 =7.34, P=0.0067). The proportion of the patients with high stage of lymphedema disease decreased significantly (all P <0.01), and the average leg circumference decreased of 1.06 cm. The skin appearance improved significantly. Other signs, such as pitting edema, ulcer, and skin folds also improved significantly (all P <0.01). CONCLUSION: The comprehensive care for chronic filariasis patients with lymphedema has a remarkable effect and is worthy of further application.

[Longitudinal surveillance of intestinal nematodiasis in Yinghu Village of Wujiang City].

OBJECTIVE: To understand the epidemic dynamics of intestinal nematodiasis in Wujiang City. METHOD: The residents of Yinghu Village of Wujiang City were investigated with Kato-Katz technique for the infections of intestinal nematodes, and the persons with the infections were administered with anthelmintics and they also received the health education. RESULTS: Of the 5 757 residents, 147 persons were infected with intestinal nematodes, with the average infection rate of 2.55%. The infection rates of hookworm, Ascaris lumbricoides and Tricuris trichiura were 1.96%, 0.49% and 0.24%, respectively. The repeated infection rate was 20.30%, that was 10.36 times higher than the new infection rate (1.96%). CONCLUSIONS: There are still regions and populations with high infection rates of intestinal nematodes in Wujiang City where the intestinal nematodiasis has been controlled. Therefore, it is necessary to strengthen the monitoring, prevention and control work.

[Effect of mass chemotherapy in late stage of soil-borne nematodiasis control].

OBJECTIVE: To evaluate the effects and influencing factors of mass chemotherapy in the late stage of soil-borne nematodiasis control so as to provide the evidence for the development of control programs. METHODS: Six villages were divided into three groups: the target chemotherapy, the selective chemotherapy and the control. By observation in three consecutive years, the indexes, mass infection rates, infection degrees and re-infections of soil-borne nematodes, were compared among the 3 groups. The influencing factors were also analyzed. RESULTS: The population infection rates of soil- borne nematodes decreased by 85.94%, 43.10% and 20.87%, respectively, in the three groups after chemotherapy compared with those before the intervention. A higher hookworm infection rate appeared and the chemotherapy effect was impacted in the target chemotherapy group, as some key population applied fresh human waste in vegetable plots. The re-infection rate was 16.65 times of the new infection rate. CONCLUSIONS: Chemotherapy is still useful in the late stage of soil-borne nematode control. It is more important to enhance management of using manure and health education on focus population.