The prevalence of (often-deadly) colo-rectal cancer in Israel has declined thanks largely to intensive information campaigns by the Israel Cancer Association and others. The rate of patients who were diagnosed at an early stage almost doubled – from 20 percent in 1994 to 39% today.
http://www.jpost.com/Health-and-Science/Israel-Cancer-Association-and-Health-Ministry-declare-March-awareness-month-of-common-tumor-344137