There was acom-mon antigen in both PS : O23 and SH : C13. A strain not a PS : O1-50 not only had common antigen with SH : A3,C17,but also had common antigen EPEC : O124 B17. So for the relation between antigen of PS and EPEC has not been reported.

• 新的血清型中有1株与shA_3、shC_(17)和EPECO_(124)B_(17)有共同抗原。 迄今为止,关于PS与EPEC的抗原关系尚未见报道。