论文部分内容阅读
新疆巴楚县阿克沙克马拉勒地区1965年曾发生出血热患者11例,10例死亡。1966年发生8例,6例死亡。1967年4月开始,大量垦荒人员进入该地区,但当年在外来人员中和当地居民中均无病例发生。1968年仅在当地牧民中发病2例,外来人员中没有病人发生。该地区1966年冬季的气温偏低,平均气温在-10℃以下的时间持续达1个月之久。这可能是1967年春季没有病例发生的原因。1967年叶尔羌河洪水较早,洪峰出现时间提前1个月,流量超过1000m3/sec的时间持续19天,造成洪水泛滥,80%以上的河岸荒漠牧场被淹。1968年4~6月在曾被淹过的牧场中查不到游离成蜱,未被淹过的胡杨疏林中硬蜱数量仍然较多。家畜体外带蜱指数均在20以下。1968年当地牧民中仍有发病,说明这种气象条件和洪水对本病疫源地的影响是短期的。
11 cases of hemorrhagic fever occurred in 1965 in Akshak Marare area, Bachu County, Xinjiang Autonomous Region, and 10 died. Eight cases occurred in 1966 and six died. Beginning in April 1967, a large number of reclamation workers entered the area, but none of the cases were reported among migrant workers and local residents. In 1968, only 2 cases were reported among local herdsmen, and none of the migrant workers occurred. The temperature in the winter of 1966 in the area is low, and the average temperature is below -10 ° C for a month. This may be the reason why no cases occurred in the spring of 1967. In 1967, the Yarkand River flooded earlier and the flood peak appeared one month earlier. The flow exceeded 1000m3 / sec for 19 days, causing flooding and over 80% of the river bank desert ranch flooded. From April to June 1968, the free ticks were not found in the pastures which had been flooded, and the number of Ixodes in Populus euphratica forest remained undiscovered. Livestock with tick index below 20 in vitro. In 1968, there were still some incidences among local herdsmen, indicating that the weather conditions and floods have a short-term impact on the epidemic area.