Wow, 652 drivers at 11 trucks stops 3-5 years ago. Perfectly accurate, I'm sure. I guess it takes 3 years minimum to get the results of a test for hepatitis back. That'd be why they withheld the information for so long, right?
I heard about this on the Lockridge Report, and this is a crap study. There's no way it's an accurate study, because the drivers studied all volunteered. So the tools that mess with lizards are gonna say "sure I'll get a free test" and there's the results. Another black eye painted to people like me!