"...The whole-cell vaccine for pertussis is protective only against clinical disease, not against infection (15-17). Therefore, even young, recently vaccinated children may serve as reservoirs and potential transmitters of infection." that's about in a nutshell what it says...
there needs to be more research on MMR...
Ummmm, forgive me, but what the hell does pertussis have to do with MMR?
well TomB it seems taht you are so pro-vaccine and that to you vaccines are a modern day wonder and we can't survive without them that we should extend this debate to not include not only the MMR triple jab but all vaccines and in general...
therefore as far as I am concerned everything is fair game and worthy of discussion where vaccines are concerned...