粘质沙雷氏菌又名灵杆菌,为革兰氏阴性杆菌,存在于空气、水、土壤和污物中。一般认为是非致病菌,但在新生儿以及机体抵抗力极度降低时,该菌也可侵入机体而致病。俗称“马牙”是牙板上皮的残余所形成的角化物,在萌出接近粘膜表面数周后自行脱落,不需处理,更不应用针挑出。本例用未消毒针挑后引起沙雷氏菌败血症的教训值得引起注意。 Serratia marcescens, also known as the spirit of bacteria, Gram-negative bacilli, exist in the air, water, soil and dirt. Generally considered non-pathogenic bacteria, but in the newborn and the body resistance is extremely reduced, the bacteria can also invade the body and pathogenic. Commonly known as “horse teeth” is the formation of dental plaque epithelial remnants of the keratin, erupted close to the mucosal surface a few weeks after its own off, without treatment, but not the use of needle singled out. This case of non-sterile needle challenge caused by Serratia septicemia worth noting.