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龋齿罗氏菌为需氧或微需氧、不形成芽胞、无动力和多形态的革兰阳性菌,属微球菌科,是人类口咽部的共生菌群,与龋齿和牙周病相关。通常认为,龋齿罗氏菌对人类具有低毒力,很少引起严重感染,但现已公认为医院感染重要的机会致病菌,常与感染性心内膜炎有关,并可引起多种严重感染。因此,临床实验室应掌握龋齿罗氏菌的生物学特性、并重视对该菌的鉴定。
Cariogenic bacteria are aerobic or micro-aerobic, do not form spores, non-motile and multi-morphological Gram-positive bacteria, is a Micrococcus family, is the symbiotic flora of the human oropharynx, and dental caries and periodontal disease related. It is generally accepted that cariogenic fungi are low virulent to humans and rarely cause serious infections but are now recognized as opportunistic pathogenic bacteria of nosocomial infection and are often associated with infective endocarditis and can cause many serious infections . Therefore, the clinical laboratory should master the biological characteristics of cariogenic bacteria, and attach importance to the identification of the bacteria.