Abstract
1) The syphilis were found in about 12% among people who were subjected to examination.
2) The syphilis positive ratios were as follows. O-group is 10% ( _??_: _??_≅2: 1), A-group is about 10% ( _??_: _??_≅ 2: 1), B-group is 15% ( _??_: _??_≅1: 1), AB-group is 13% ( _??_: ≅5: 1) .
3) The syphilis positive rate:
The rate of the most sensitive syphilitic reaction is: Objectglass- : Murata's- : Ogata's- Method. ≅2: 1: 1.
4) It is inferred that those syphilis reactions have no effect on OAB-blood groups.
