According to the reported sequence of K99 pili protein gene of Enterotoxigenic Escherichia coli(ETEC),a pair of primers of K99 were designed and synthesized.

• 根据产肠毒素大肠杆菌(Enterotoxigenic Escherichia coli,ETEC)K99菌毛蛋白的全基因序列设计产肠毒素大肠杆菌主要菌毛K99的一对引物。