COLUMBUS, Ohio - The Ohio Department of Health has released an updated list of states on the travel advisory map.

As of October 21, Alabama, Idaho, Iowa, Kansas, Nebraska, South Dakota and Utah are all listed as states with a positivity rate at 15% or higher.

Four states that were listed on last week's advisory were dropped from the list. Those states are Indiana, Nevada, Wisconsin and Wyoming.

Three states (Mississippi, Nevada and Wyoming) did not report data this week, but Governor Mike DeWine said in a tweet that positivity rates are likely high in those states.

Anyone traveling to the states included in the advisory are encouraged to self-quarantine for 14 days after returning to Ohio.