As states open up over the long holiday weekend, a word of caution. The coronavirus is still active and spreading uncontrollably in 24 states, according to researchers in the U.K. The Washington Post writes:

Researchers at Imperial College London created a model that incorporates cellphone data showing that people sharply reduced their movements after stay-at-home orders were broadly imposed in March. With restrictions now easing and mobility increasing with the approach of Memorial Day and the unofficial start of summer, the researchers developed an estimate of viral spread as of May 17.

The study shows that while many states have made progress, others are nowhere near containing the virus.

The model, which has not been peer reviewed, shows that in the majority of states, a second wave looms if people abandon efforts to mitigate the viral spread.

For example, the model shows that the death rate in Florida and California could spike to 1,000 a day by July without further mitigation efforts.

Here are the states that are in most danger:

Texas, Arizona, Illinois, Colorado, Ohio, Minnesota, Indiana, Iowa, Alabama, Wisconsin, Mississippi, Tennessee, Florida, Virginia, New Mexico, Missouri, Delaware, South Carolina, Massachusetts, North Carolina, California, Pennsylvania, Louisiana, and Maryland.