A new analysis being reviewed by the White House shows southern states that moved too quickly to relax social distancing guidelines face significant risk for a resurgence of the coronavirus over the next several weeks. In several cases, counties will see hundreds of additional cases by June 17.

The study, which was put together by PolicyLab at Children’s Hospital of Philadelphia, is part of a data set being reviewed by top coronavirus task force officials and people working with the team, The Daily Beast reported earlier this month. A previous model by the PolicyLab predicted that if officials moved too quickly and too aggressively to reopen in mid-May, individual counties could witness hundreds, if not a thousand-plus, more coronavirus cases reported each day by August 1.

The new model shows that in southern counties, particularly in Texas, Florida, Alabama, and Virginia, the risk for resurgence is high over the next four weeks. These states have moved to reopen, at least partially, since the team published its last model in April.