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尘螨是属于麦食螨科Pyroglyphidae的螨类。该科共有6种储粮螨类,即粉尘螨Dermatophagoides farinae,屋尘螨 D.pteronyssinus,梅氏嗜霉螨Erogly phvs maynei,长嗜霉螨 E.longior,非洲麦食螨 Pyroglyphus africanus和小角尘螨 D.microceras。前三种,特别是粉尘螨和屋尘螨,具有过敏作用,是人类过敏性哮喘的致病因素之一。在无尘螨的场合下,我国头号储粮害螨——腐食酪螨Tyrophagus putrescentiae——与尘螨具交叉反应,起主要的过敏原作用。
Dust mites are mites belonging to the Pyroglyphidae family. There are 6 kinds of stored grain mites, Dermatophagoides farinae, D. pteronyssinus, Erogly phvs maynei, E. longior, Pyroglyphus africanus, D.microceras. The first three, especially dust mites and house dust mites, have an allergic effect and are one of the causative agents of human allergic asthma. In the case of dust-free mites, Tyrophagus putrescentiae, the top grain stored grain in our country, has a cross-reaction with dust mites and plays a major role in allergens.