Rusin Patricia A, Maxwell Sheri L, Brooks John P, Gerba Charles P, Pepper Ian L
Department of Soil, Water and Environmental Science, University of Arizona, Tucson, Arizona 85721, USA.
Environ Sci Technol. 2003 Sep 15;37(18):4027-30. doi: 10.1021/es020974m.
Staphylococcus aureus is an important human pathogen both within the hospital setting and as a community-acquired infection. Recently there has been concern that land applied biosolids may transmit S. aureus. However, no scientific data are available to document whether biosolids are a source of S. aureus. To determine if S. aureus is present in biosolids, we collected samples from 15 sites across the United States. Samples analyzed were as follows: 3 raw untreated sewage samples and 2 undigested primary sewage sludge samples; 23 different biosolid samples; and 27 aerosols obtained during biosolid land application (biosolid aerosols). Although S. aureus were detected in raw sewage samples, none were found in any of the treated biosolids nor in any biosolid aerosol samples. These results suggest that biosolids are not a likely source of S. aureus human exposure or infection.
金黄色葡萄球菌是医院环境中以及社区获得性感染的一种重要人类病原体。最近有人担心，用于土地的生物固体可能传播金黄色葡萄球菌。然而，尚无科学数据证明生物固体是否为金黄色葡萄球菌的来源。为了确定生物固体中是否存在金黄色葡萄球菌，我们从美国各地的15个地点采集了样本。分析的样本如下：3份未经处理的原污水样本和2份未消化的初级污水污泥样本；23份不同的生物固体样本；以及27份在生物固体土地施用过程中获得的气溶胶（生物固体气溶胶）。虽然在原污水样本中检测到了金黄色葡萄球菌，但在任何经过处理的生物固体中或任何生物固体气溶胶样本中均未发现。这些结果表明，生物固体不太可能是人类接触或感染金黄色葡萄球菌的来源。
