1972年7—8月间,我县古方公社大德垅大队社员,自7月4日开镰割稻以来,发生手、足小关节肿痛患者百余例.在县委、公社党委的领导下及上级有关业务部门的指导下于8月10—24日,对该大队进行了流行病学调查,通过资料分析,认为本病的发生与松毛虫关系密切,暂定名为“松毛虫病”,现将调查情况报告如下: From July to August 1972, a member of the Dadu Sub-brigade of the ancient communes in our county started to have more than 100 cases of hand and foot joint swelling and pain since the sickle-cutting rice was opened on July 4. Under the leadership of the Party committees and commune committees And the superior business departments under the guidance of the August 10-24 August, conducted an epidemiological investigation of the brigade, through data analysis, that the occurrence of the disease is closely related to the pine caterpillar, tentatively named “Dendrolimus ”Now report the investigation as follows: