Prairie du Chien Area School District - FROM THE SCHOOL NURSE
https://www.cms4schools.com/news_rss.cfm?detailid=246013&memberid=103
Prairie du Chien Area School District - FROM THE SCHOOL NURSEen-usPertussis Fact Sheet
//www.pdc.k12.wi.us/cms_files/resources/pertussis fact sheet[1].pdf