Washington (CNN) Florida Gov. Ron DeSantis said Tuesday he plans to expand his already far-reaching executive order mandating a 14-day self-quarantine or isolation period for travelers coming to Florida from airports in New York, New Jersey and Connecticut amid the novel coronavirus pandemic.

DeSantis, speaking at a press conference, said he will sign an additional order to make his original mandate apply retroactively to anyone who has traveled to Florida from those states in the last three weeks.

The additional order will also require travelers to provide the names of people they've been in close contact with in the state.

"Now is the time to take care of yourself, stay away from crowds, stay at home as much as you can and do the right things for yourself and your community," DeSantis, a Republican, said.

The move to expand the first large-scale attempt by a state to impose a self-quarantine period for domestic travelers comes as more than 52,000 coronavirus cases were reported in the country by Tuesday night -- roughly half of them in New York. At least 700 people in the US have died.

Read More