丝防后期马来丝虫残存微丝蚴血症者自然消长追踪观察

FOLLOW-UP OBSERVATION ON NATURAL CONVERSION OF RESIDUAL MICROFILARIEMIA OF FILARIASIS MALAYAN AT LATE STAGE OF CONTROL PROGRAM

１９８４—１９９６年终止防治措施期间，对７０例马来丝虫微丝蚴血症者自然阴转情况观察，微丝蚴密度≤５０条／１２０μｌ的微丝蚴血症者在５—７年中有９４．１２％—１００．００％阴转；＞５０条／１２０μｌ的微丝蚴血症者可维持１０年以上．微丝蚴密度与自然阴转率呈负相关。提示在丝虫病防治后期，要及时加强对高密度微丝蚴血症者的查治，从而加快阻断丝虫病传播的进程。

70 cases of microfilaremia malayi were followed-up on their natural conversion during 1984-199a after control measures were halted. Cases of microfilarial density< 50/120μl could be naturally conversed to 94.12-100% in 5-7 years and cases with density > 50/12μl could sustain over 10 years. Negative correlationexisted between microfilarial density and natural conversion rate,which indicated that at the late stage of control program,diagnosis and treatment of patients with high microfilarial density should be strengthened in order to speed up the interruption of filariasis transmission.