Ostfeld E, Segal J, Segal A, Bogokovski B
Isr J Med Sci. 1983 Dec;19(12):1046-9.
The bacterial flora of the nose and external ear canal of 132 newborn infants, aged 3 days and 4 to 7 days, was examined. Cultures taken from the nose showed the following pattern of bacterial colonization: normal flora (39%); potentially pathologic gram-positive microorganisms (23%); gram-negative enteric rods (16%); and sterile cultures (22%). The most frequent bacterial cultures from nostrils were Staphylococcus epidermidis (39%); Staph. aureus (11%) and Escherichia coli (8%). The cultures from the external ear canal showed normal flora (37%); potentially pathologic gram-positive microorganisms (5%); gram-negative enteric rods (24%); and sterile cultures (34%). The most frequent bacteria cultured from the ear canal were: Staph. epidermidis (37%); E. coli (8%); and Klebsiella pneumoniae (7.5%). Of several factors studied, the type of delivery, Apgar score and the duration of hospitalization were found to have a significant influence on the pattern of bacterial colonization.
对132名3日龄以及4至7日龄新生儿的鼻腔和外耳道菌群进行了检查。取自鼻腔的培养物显示出以下细菌定植模式：正常菌群（39%）；潜在致病性革兰氏阳性微生物（23%）；革兰氏阴性肠道杆菌（16%）；以及无菌培养物（22%）。鼻孔中最常见的细菌培养物是表皮葡萄球菌（39%）；金黄色葡萄球菌（11%）和大肠杆菌（8%）。外耳道的培养物显示正常菌群（37%）；潜在致病性革兰氏阳性微生物（5%）；革兰氏阴性肠道杆菌（24%）；以及无菌培养物（34%）。外耳道培养出的最常见细菌为：表皮葡萄球菌（37%）；大肠杆菌（8%）；以及肺炎克雷伯菌（7.5%）。在研究的几个因素中，分娩方式、阿氏评分和住院时间被发现对细菌定植模式有显著影响。
