Chew F T, Zhang L, Ho T M, Lee B W
Department of Paediatrics, National University of Singapore, Singapore.
Clin Exp Allergy. 1999 Feb;29(2):201-6. doi: 10.1046/j.1365-2222.1999.00493.x.
Sensitization to house dust mites is very common in the tropics. This study evaluated the dust mite fauna in Singaporean homes.
A total of 134 dust samples from 50 homes were evaluated. Dust mites were isolated, identified and quantified by standard techniques.
Dust mites were isolated from 130/134 (97%) samples, with mites identified in all samples from sofas (n = 21) and carpets (n = 13), and 49/50 (98%) and 47/50 (94%) from mattresses and bedroom floors, respectively. All samples from sofas and carpets had more than 500 mites/g compared with 47/50 (94%) and 23/50 (46%) from mattresses and floors, respectively. Blomia tropicalis was the predominant mite (62% of total mites) followed by D. pteronyssinus (16% of total mites). Eight samples had a predominance of Sturnophagoides brasiliensis and Tarsonemus granarius. Other species that accounted approximately 1% of mites identified included D. farinae, Austroglycyphagus malaysiensis, Cheyletus malaccensis, Malayoglyphus intermedius, Suidasia pontifica and Tyrophagus putrescentiae.
Dust mites were highly prevalent and present in high densities in Singaporean homes with B. tropicalis being the most prevalent species.
对屋尘螨过敏在热带地区非常普遍。本研究评估了新加坡家庭中的尘螨种类。
对来自50个家庭的134份灰尘样本进行了评估。通过标准技术分离、鉴定和定量尘螨。
在134份样本中的130份(97%)分离出了尘螨,在所有沙发样本(n = 21)和地毯样本(n = 13)中均鉴定出螨,床垫样本和卧室地板样本中分别有49/50(98%)和47/50(94%)鉴定出螨。与床垫样本中的47/50(94%)和地板样本中的23/50(46%)相比,所有沙发和地毯样本中的螨含量均超过500只/克。热带无爪螨是主要的螨种(占螨总数的62%),其次是粉尘螨(占螨总数的16%)。有8个样本以巴西嗜鸟螨和谷跗线螨为主。其他约占鉴定出螨总数1%的种类包括粗脚粉螨、马来西亚真足螨、马六甲肉食螨、中间马来食甜螨、蓬头嗜卷书虱和腐食酪螨。
尘螨在新加坡家庭中高度流行且密度很高,热带无爪螨是最普遍的种类。