Not really a preview – CDC Yellow Book Review

I don’t think any reasonable man would call this a “Preview.” Once you waste your time and data downloading the app, you will ONLY have access to a “water disinfection for travelers” document. If you want to know what the app contains and how it functions you’ll have to pay $30 or just go to the CDC website where it’s free.
Review by LongDec08 on CDC Yellow Book.