Becoming a Contagious Christian Becoming a Contagious Christian Becoming a Contagious Christian was developed by Bill Hybels, founding pastor of Willow Creek Community Church in suburban Chicago, to help Christians learn to build relationships with pre-Christians with the goal of sharing their faith. Becoming a Contagious Christian emphasizes finding a natural witnessing style that works best for each individual. We'll be glad to help you "incubate" this bug! Contact us today for details on how to bring be trained in Becoming a Contagious Christian.