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核糖体ＲＮＡ的编码基因检测及多态性分析已广泛应用于分子流行病学的研究中[１、２］。分子杂交技术是现代流行病学的主要研究手段，它在追踪菌株的来源以及探讨造成不同地区流行的菌株之间的关系上有重要意义。为了探讨不同来源、不同地区分离到的埃尔托霍乱弧菌在染色体分型
Ribosomal RNA encoding gene testing and polymorphism has been widely used in molecular epidemiological studies [1,2]. Molecular hybridization is a major research tool in modern epidemiology. It is of great importance in tracing the origin of strains and exploring the relationships between strains that are endemic in different regions. In order to explore different sources, different regions of El Toro Vibrio cholerae in chromosomal typing