Hepatitis A Spreading Like Wildfire

First there was an outbreak of hepatitis A in California:

http://www.cnn.com/2017/10/19/health/hepatitis-a-outbreak-california-state-of-emergency/index.html

Now it's spreading in Michigan:

http://www.shtfplan.com/headline-news/hepatitis-a-outbreak-spreads-in-michigan-no-stopping-this-regional-epidemic_10302017

What's up with this? Another sign the US is a failed state?