Health officials warn about possible measles exposure in Walnut Creek

Katie Nielsen reports on a person with measles possibly exposing multiple people in downtown Walnut Creek to the contagious disease. Website: http://kpix.com/ YouTube: http://www.youtube.com/CBSSanFrancisco Facebook: https://www.facebook.com/CBSSanFrancisco Instagram: https://www.instagram.com/kpixtv/ Twitter: https://twitter.com/KPIXtv