I applied online. The process took 3 months. I interviewed at Cincinnati (Cincinnati, OH) in Feb 2011
Interview
They were very thoughtful in their questions and seemed to be very clear to what they were looking for in terms of experience and expertise. It was a group interview so I got a chance to interview them too and get a feel for the people I'd be working with.
Interview questions [1]
Question 1
How many years have you been a sanitarian? Where else did you work? What experience do you have with public health?