Twin Falls, Idaho ( KMVT-TV / KSVT-TV ) The Center for Disease Control could be knocking on your door soon.
A nationwide survey conducted by the CDC is coming to Twin Falls County.
It's called the National Health and Nutrition Examination Survey.
Every year, five thousand people across the nation have the chance to participate.
"We introduce ourselves and show our identification, and that is something to look out for when you answer the door. We'll introduce ourselves, and the household would have already received an advanced letter saying we may be visiting, and we'll ask questions about the demographics on who lives in the household," explains study manager Janis Eklund.
This is the first time that any county in Idaho has been selected.
Findings from this survey will be used to determine the prevalence of major diseases and risk factors.