滕州市位于山东省南部,总面积为1458 km~2。境内有大、小河流17条,中、小型水库24座,较大积水坑塘百余处。市内流动人口频繁,农作物以小麦、玉米为主,年平温气温14℃左右,相对湿度年平均70％左右,年降水量700 mm左右。 间日疟是本市高发寄生虫病,解放后曾有两次大流行。第1次是60年代,患者126127人,发病率为1310.81/万,第二次在 Tengzhou City is located in southern Shandong Province, with a total area of ​​1458 km ~ 2. There are 17 large and small rivers, 24 medium and small-sized reservoirs and more than 100 puddles. The floating population in the city is frequent. Crops mainly include wheat and corn. The annual temperature is about 14 ℃ and the annual average relative humidity is about 70%. The annual precipitation is about 700 mm. Plasmodium vivax is a parasitic parasitic disease in the city, with two pandemic strikes. The first is the 60’s, 126,127 patients, the incidence rate of 1310.81 / million, the second time in