Do the four band members in ABBA have blood types A and B?

The blood types of the ABBA members—Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad—are not publicly disclosed. While individual blood types can vary widely among the general population, specific details about the band members' blood types are considered private information. Therefore, it's unclear whether any of them have blood types A or B.