http://news.yahoo.com/s/nm/20070330/hl_nm/vaccine_exemptions_dc
School vaccine exemptions put kids at risk By Anne Harding
Fri Mar 30, 1:46 PM ET
NEW YORK (Reuters Health) - Rules that allow parents to exempt their children from immunization requirements for "philosophical" reasons are putting all kids at risk of outbreaks of vaccine-preventable disease, Arkansas researchers warn.
Since 2003, when the state began allowing these exemptions from school vaccine rules, rising numbers of children have been going without immunization, Dr. Joseph W. Thompson of the Arkansas Center for Health Improvement in Little Rock and colleagues found.