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调查与粮食和中药材密切接触者363人,其中65例肺螨症患者痰螨检查阳性。具有咳嗽、痰多、痰中带血、胸闷、胸痛、气急、乏力、低热等临床症状。胸片示肺门特征性结节状阴影。患者血清特异性抗体阳性,嗜酸粒细胞增高。所有患者均采用甲硝达唑治疗3个疗程,治疗量为0.2g每日3次,或0.4g每日2次,疗程7d,每疗程间隔7～10d,治后痰螨阴转率达94.4％,多数患者临床症状的X线胸片有明显改善,嗜酸粒细胞降至正常范围,提示对肺螨症有明显的疗效。
Investigation of 363 people in close contact with food and Chinese herbal medicines, of which 65 cases of pulmonary acarids sputum mites positive examination. With cough, phlegm, bloody sputum, chest tightness, chest pain, shortness of breath, fatigue, fever and other clinical symptoms. Chest X-ray showed characteristic nodular shadow. Patients with serum-specific antibodies, eosinophilia. All patients were treated with metronidazole 3 courses of treatment, the treatment of 0.2g 3 times a day, or 0.4g 2 times a day, the course of 7d, each treatment interval of 7 ~ 10d, sputum mite negative conversion rate of 94.4 %, The majority of patients with clinical symptoms of X-ray significantly improved, eosinophils dropped to the normal range, suggesting that lung mite disease has a significant effect.