Investigation of Chronic Filariasis Cases After Filariasis Eliminated in Sichuan Province

Objective To understand the incidence of chronic filariasis and the outcome and changes of chronic filariasis cases after the disease being eliminated,and provide basis for caring and attending patients.Methods Visit people aged over 10-year-old interviewed and physical examinated from door to door.Inquiry and reexamine ofpr filariasis cases were carried out one by one with their casebooks completed.Results After eliminating filariasis in Sichuan Province,no new case was found.There were 341 chronic cases still existing in 2010.Because of dying aging,etc,the chronic cases were naturally decreased by 89.83% and 62.32% compared to the time when basically and totally eliminating filariasis.The epidemic area also significantly reduced.Among those remaining cases,people over 60-year-old accounted most(92.08%).Course of the cases were mainly more than 40 years,accounted for 78.59%.The lymphedema area was mainly in both lower limb and on stage Ⅰ-Ⅱ,accounted for 46.92% and 75.07% of all the casesre.Conclusion After filariasis was eliminated in Sichuan,the chronic filariasis cases significantly reduced.The patients' symptoms have been alleviating.The characteristics of the cases are old age and long courses.During the later stage of filariasis surveillance,self protection of health and treatment measure should be strengthened to control the onset of the illness and alleviate the symptoms and signs.