为落实中共中央(1970)31号文件关于积极预防和治疗严重危害广大贫下中农身体健康,直接影响农业生产发展的钩端螺旋体病的指示精神,我站于1970年冬季对我省大部地区的猪携带钩端螺旋体的情况进行了初步调查,以便为正确地开展钩端螺旋体病的 In order to implement the directives of No. 31 document of the Central Committee of the Communist Party of China (1970) on the active prevention and treatment of leptospirosis, which seriously endanger the health of the poor and the middle peasants and directly affect the development of agricultural production, I stood in the winter of 1970 in areas of most of our province Pigs carrying Leptospira carried out a preliminary investigation of the situation in order to properly carry out the leptospirosis