近二十年来,疥疮又在世界各地流行,其发病率显著升高,如据1967年 Shrank 报告,在英国伦敦圣约翰皮肤病医院三年内就诊的疥疮患者激增了三倍。Hernandez-Pàrez 报告在萨尔瓦多的 Rosales 医院五年内就诊的疥疮患者从原来只占皮肤病患者的1.69%增至4.9%,激增了150%。另据 Orkin 等调查:在伦敦,疥疮约占皮肤科门诊患者的3.3%;在巴黎约占9.4%。除欧洲这些国家外,在南美阿根廷布利诺斯艾利斯1969年的皮肤科门诊中,疥疮患者约 Scabies have been circulating around the world for nearly two decades and their incidence has risen dramatically, as the 1967 Shrank report shows a threefold surge in scabies treated within three years at St. John’s Dermatology Hospital in London, England. Hernandez-Pàrez reported an increase of 150% in the number of scabies treated at Rosales Hospital in Salvador within five years from 1.69% to 4.9% of those with skin problems. According to Orkin and other investigations: In London, scabies accounted for about 3.3% of dermatology clinic patients; about 9.4% in Paris. In addition to these European countries, at the Dermatology Clinic, 1969, in Buenos Aires, Argentina, South America, scabies