against vaccinations but officials didn't stop there. they played on parent's fears about autism even though claims about vaccines causing autism have been debunked. many church members were sitting ducks when the virus hitched a ride from halfway across the globe. >> reporter: it started with a visitor from the mountain eagle church a. visitor that traveled overseas, then at church hugged parishioners and handled babies in the church daycare. unknowingly, spreading a dangerous measles virus. terry piersons is the pastor. >> we've had a few families affected by this, so we want to shut this thing down. >> reporter: more than a few, 16 cases of the measles originated including seven adults and nine children. the youngest is just 4 months old. health officials say 11 of the victims have never been vaccinated.