Yep my thoughts too...
When you think about it IF the data is true (and I seriously question the accuracy of any sex survey like this) the whole thing is a bit of a contradiction...
Twice the number of partners and twice the number of STD's implies that transmission rate has stayed similar. Form this we infer that rates of infection have stayed similar BUT we are told they have doubled.*
*Of course this is a deliberate gross over simplification (much like the study) of the statistics and ignores many many factors such as
1)Concurrency of partners
2)Frequency and number of encounters
3)Types of STD and their relative eas of transmission
4)Are there actually a few 'sweish super shaggers' who bed thousands and have infected many or is there an even distribution of disease and loving?
Think we need an el reg investigation into this immediately