Swedish Institute for Infectious Disease Control, Solna, Sweden.
Emerg Infect Dis. 2010 Feb;16(2):189-96. doi: 10.3201/eid1602.081655.
Countries such as Sweden that have a low prevalence of methicillin-resistant Staphylococcus aureus (MRSA) offer the opportunity to discern and study transmission of imported cases of MRSA. We analyzed 444 imported cases of MRSA acquisition reported in Sweden during 2000-2003. Risk for MRSA in returning travelers ranged from 0.1 (95% confidence interval [CI] 0.01-0.4) per 1 million travelers to Nordic countries to 59.4 (95% CI 44.5-79.3) per 1 million travelers to North Africa and the Middle East. Most imported cases (246, 55%) were healthcare acquired, but regions with the highest risk for MRSA in travelers showed a correlation with community acquisition (r = 0.81, p = 0.001). Characteristic differences in MRSA strains acquired were dependent on the region from which they originated and whether they were community or healthcare acquired. Knowledge of differences in transmission of MRSA may improve control measures against imported cases.
在甲氧西林耐药金黄色葡萄球菌（MRSA）发病率较低的国家，如瑞典，有机会发现和研究进口 MRSA 病例的传播情况。我们分析了 2000-2003 年期间瑞典报告的 444 例进口 MRSA 感染病例。前往北欧国家的旅行者感染 MRSA 的风险为每 100 万旅行者 0.1（95%置信区间 [CI] 0.01-0.4），而前往北非和中东的旅行者感染 MRSA 的风险为每 100 万旅行者 59.4（95%CI 44.5-79.3）。大多数进口病例（246 例，55%）是在医疗机构获得的，但旅行者中 MRSA 风险最高的地区与社区获得性感染呈正相关（r = 0.81，p = 0.001）。从不同地区获得的 MRSA 菌株的特征差异取决于它们的来源以及是社区获得性还是医疗机构获得性。了解 MRSA 传播的差异可能会改进针对进口病例的控制措施。
