The Florida Department of Health announced 17 new positive cases of coronavirus in Florida Thursday. The ages of the people affected ranged from 24 to 83, with three of the new cases in their 20s.

Most of the newest cases were in South Florida, with four cases in Broward, two in Palm Beach and another in Miami-Dade County. The rest were scattered around the state.

The DOH also is advising all individuals who have traveled internationally to follow new guidelines from the Centers for Disease Control and Prevention, summarized below:

Level 3: Recommends 14-day self-isolation and social distancing upon return to the United States. Social distancing includes avoiding going out in public and close personal interactions. If you become symptomatic, immediately self-isolate and contact your county health department or health care provider.

Coronavirus in Florida: State universities tell students to 'stay home'

Level 2 and Cruises: Travelers should monitor their health and limit interactions with others for 14 days after returning to the United States. If you become symptomatic, immediately self-isolate and contact your county health department or health care provider.

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Here is the latest information available from the FDOH:

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Here's why Florida won't say how many COVID-19 tests take place in a county

11:58 p.m. Thursday

As the novel coronavirus spreads across the country, the response by states has been subjected to constant scrutiny. Florida health authorities have been particularly tight-lipped about the information they have chosen to release.

While Florida health officials are identifying the counties where positive cases of COVID-19 have been identified, including the age, gender of individuals and whether an individual engaged in foreign travel, the state so far is refusing to provide localized county-level data on how many were being tested and monitored for the virus.

Coronavirus closes Walt Disney World, Disney Cruise Line, Universal Studios

8:46 p.m. Thursday

Walt Disney World announced Thursday evening that it would be closing Walt Disney World Resort in Florida and Disneyland Paris Resort, beginning at the close of business on Sunday, March 15, through the end of the month.

Disney Cruise Line will suspend all new departures beginning Saturday, through the end of the month.

Universal Orlando Resort also will temporarily close its theme parks at the close of business on Sunday, March 15. A statement on the resort's web site said they anticipate remaining closed through the end of March – but will continue to evaluate the situation.

Universal Orlando’s hotels and Universal CityWalk will remain open.

7:03 p.m. Thursday

Even as Gov. Ron DeSantis discouraged “mass gatherings” in Florida because of the spreading coronavirus Thursday, the Florida Capitol was crammed with 160 lawmakers and hundreds of staff, lobbyists and visitors for the closing days of the Legislature.

The session is scheduled officially to end Friday, but a few days of overtime is certain – even though lawmakers grow anxious about the virus and eager to get home to their families and district offices.

This story originally published to naplesnews.com, and was shared to other Florida newspapers in the USA TODAY Network - Florida.