"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

"We will get some vaccine at the beginning of the fall we won't be able to vaccinate everybody initially, so we'll be identifying priority groups, but because we had advance contracts for vaccine we'll get very big supplies through the fall and winter,".

VOA: standard.2009.07.31