Mrs Mbeki and Mrs Zuma gave birth to daughters on the same day in the same maternity ward and Mrs Mbeki became convinced the babies were switched. Blood tests showed that Mr. and Mrs. Mbeki have blood types A, B, and O respectively while Mr. and Mrs. Zuma have blood types A and B respectively, and baby Jasmine Mbeki's blood type was A while baby Victoria Zuma's blood type was O, indicating the babies were not switched.