Reported pertussis cases by county.

Downloaded from the Colorado Department of Public Health & Environment website.

HE19/400.39/INTERNET

Library has 2011-2017.

• 2017 (PDF)
• 2016 (PDF)
• 2015 (PDF)
• 2014 (PDF)
• 2013 (PDF)
• 2012 (PDF)
• 2011 (PDF)