Carrington G O, Cleveland P, von Graevenitz A, Rupp W D
Yale J Biol Med. 1975 May;48(2):83-9.
Three isolates of a lactose-fermenting, xylose-negative variety of Salmonella enteritidis ser. newington, identical in biochemical and serological reactions and in the antibiogram, were recovered from three patients in different areas of Connecticut in January 1974. Hydrogen sulfide production was not visible in Salmonella-Shigella agar, in triple sugar iron agar, and in Kligler iron agar but was noticed in lysine iron agar and on XLD agar, among others. The amount of fermentable carbohydrates present was found to correlate with failure to show hydrogen sulfide production (pH effect). In contrast to lactose-fermenting Salmonella strains reported by other authors, we could not elicit a direct transfer of the lac(+) character at frequencies above 10(-6). An epidemiological follow-up remained unsuccessful. Recommendations for the recognition of similar strains are presented.
1974年1月，从康涅狄格州不同地区的三名患者身上分离出三株肠炎沙门氏菌新ington血清型乳糖发酵、木糖阴性变种，它们在生化反应、血清学反应及抗菌谱方面均相同。在沙门氏菌-志贺氏菌琼脂、三糖铁琼脂和克氏铁琼脂中未观察到硫化氢产生，但在赖氨酸铁琼脂和XLD琼脂等培养基上观察到了硫化氢产生。发现可发酵碳水化合物的含量与未显示硫化氢产生相关（pH效应）。与其他作者报道的乳糖发酵沙门氏菌菌株不同，我们无法诱导lac(+)性状以高于10(-6)的频率直接转移。流行病学随访未成功。本文提出了识别类似菌株的建议。
