通过昆虫学和寄生虫学调查,广坝地区疟疾呈不同程度流行,山麓区流行严重,居民带虫率和发病率接近50年代抗疟前水平,丘陵区相对较低,其原因与当地主要传疟媒介大劣按蚊的数量分布有关。工程队宿舍建在距山脚约2km 的丘陵区,受大劣按蚊侵袭机会较少,在采取现行的防治措施下,年发病率预计在3～5%之间,不会出现严重流行。 The malaria epidemic in the Guangba area was endemic to varying degrees through the entomology and parasitology surveys. The endemicity in the foothills was severe. The incidence and incidence of parasitemia and morbidity were close to the pre-malaria levels in the 1950s, and the hilly areas were relatively low. The distribution of malaria vectors in An. The construction team dormitory was built in the hilly area about 2km away from the foot of the mountain, with less chance of being attacked by Anopheles dirus. Under the current prevention and treatment measures, the annual incidence rate is expected to be between 3 and 5% without serious epidemic.