College of Nursing, Ohio State University, 376 Newton Hall, 1585 Neil Avenue, Columbus, OH 43210, USA.
J Clin Microbiol. 2010 Jun;48(6):2235-6. doi: 10.1128/JCM.01958-09. Epub 2010 Apr 14.
We compared five swabs, dry or premoistened and with or without preenrichment, to detect surface contamination with Staphylococcus aureus. Sensitivities varied based on swab type, as follows: 71.9% and 75% for rayon, 71.2% for cotton, 81.3% for polyester, and 53.2% for calcium alginate. Preenrichment improved sensitivity (80%, versus 61.3% for direct-plated specimens), as did premoistening (83.4%, versus 57.5% for dry swabs). All of the premoistened, preenriched swabs were positive.
我们比较了五种拭子,包括干燥或预湿润的、以及带或不带预增菌的拭子,以检测金黄色葡萄球菌的表面污染。拭子类型不同,敏感性也不同,结果如下:人造纤维的敏感性为 71.9%和 75%,棉花的为 71.2%,聚酯的为 81.3%,藻酸钙的为 53.2%。预增菌提高了敏感性(80%,直接接种标本为 61.3%),预湿润也提高了敏感性(83.4%,干燥拭子为 57.5%)。所有预湿润、预增菌的拭子均为阳性。