Van den Wijngaert Sigi, Vandenberg Olivier, Scheen Robert, Husson Mireille, Dediste Anne
Dpt of Microbiology, Sint Pieter University Hospital, Brussels, Belgium.
Clin Lab. 2010;56(11-12):581-3.
Methicillin-Resistant Staphylococcus aureus (MRSA) is one of the most common and important causes of nosocomial infections. Rapid detection of this pathogen is important for conducting good and swift infection control. This prospective study evaluates two chromogenic media for the detection of MRSA. New colony characteristics were noticed during this evaluation: (i) a yellow/golden colouration on a pipette after streaking the colonies of the chromogenic culture could eventually be used as a supplementary identification test to identify the MRSA strains, and (ii) some MRSA strains do not metabolise the chromogens and therefore are not coloured on chromogenic agars. However, they have a typical yellow/golden colony aspect usually observed amongst S. aureus.
耐甲氧西林金黄色葡萄球菌（MRSA）是医院感染最常见且最重要的病因之一。快速检测这种病原体对于有效且迅速地控制感染至关重要。这项前瞻性研究评估了两种用于检测MRSA的显色培养基。在此评估过程中注意到了新的菌落特征：（i）在接种显色培养物的菌落划线后，移液器上出现黄色/金色着色，最终可作为辅助鉴定试验来识别MRSA菌株；（ii）一些MRSA菌株不代谢显色剂，因此在显色琼脂上不着色。然而，它们具有通常在金黄色葡萄球菌中观察到的典型黄色/金色菌落形态。
