April 1, 2016
(Medical Xpress) – The sextuplets were the culmination of a rise in multiple births recorded in Costa Rica beginning in the mid-2000s. From 1997-2005, just ten sets of quadruplets were reported, while 122 sets of quadruplets were reported from 2005-2012. The epidemic of quadruplets seems like a bizarre, counterintuitive result of the ban on IVF—especially because a spike in multiple births usually follows the use of IVF, not its absence. So what happened?