The emergence of Cronobacter as an important potential pathogen for newborn children and its occurrence in powdered infant formulae has generated a need to develop new management practices for this food group. This includes reduction of the prevalence of Cronobacter in manufacturing environments which can be a source of Cronobacter. This study was performed to assess the suitability of qualitative and quantitative Enterobacteriaceae and coliforms indicator tests for the presence and prevalence of Cronobacter. Environmental swabs (205) from five milk powder factories were examined. The qualitative indicator tests had good sensitivity but they lacked specificity for reliable routine use. Logistic regression analyses revealed a significant relationship between the quantitative indicator tests and Cronobacter prevalence, where the Enterobacteriaceae count was a slightly stronger predictor for Cronobacter than the coliforms count. The optimum test sensitivity (81%) and specificity (66%) was obtained when the indicator count thresholds were set at ≥1 cfu/cm². However, since 11% of samples were Cronobacter positive when counts of Enterobacteriaceae and coliforms were less than 1 cfu/cm², specific testing for Cronobacter is advised in addition to Enterobacteriaceae testing to minimise risk of transfer of Cronobacter from the factory environment into powdered infant formulae products.

的出现坂为新生儿和婴幼儿奶粉配方出现一个重要的潜在的病原体已产生了需要开发新的管理办法对这一食品集团。这包括在生产环境中降低Cronobacter的流行率，这可能是Cronobacter的来源。进行该研究以评估定性和定量肠杆菌科的适宜性和大肠菌群指示器试验的存在和患病阪。检查了来自五个奶粉厂的环境棉签（205）。定性指标测试具有较高的灵敏度，但缺乏可靠的常规使用方法。Logistic回归分析显示定量指标测试与克罗诺杆菌患病率之间存在显着相关性，其中肠杆菌科计数比克罗形菌计数略强于克罗诺细菌。当指标计数阈值设置为≥1cfu / cm ²时，可获得最佳测试灵敏度（81％）和特异性（66％）。但是，由于当肠杆菌科和大肠菌群的计数低于1 cfu / cm ^2时，有11％的样品为克罗诺杆菌阳性，因此需要对除肠杆菌科检测外，还建议使用克罗诺杆菌，以将克罗诺杆菌从工厂环境转移到粉状婴儿配方食品中的风险降到最低。