More than 4,000 people are still in quarantine in Florida, including a handful in Coronado, but a third of those who remain are in the Keys, according to the Department of Health.
It said a total of 1,634 have tested positive for the coronavirus.
The state has also confirmed a total 476 cases.
The number of confirmed cases was up by 11 since Saturday.
Some 3,600 of the infections have been in Florida residents, but more than 200 of them are thought to have been imported.
The government has said more than 40 people in Florida are infected, and it has said that another 2,500 people could be infected.
“There is a concern for the public health in Florida.
However, we believe that we have a significant number of infectious coronaviruses and they do not pose a threat to the state’s public health system,” said Dr David S. Smith, the governor’s director of public health and emergency preparedness.
The county that has the most cases is the Broward County Health Department, which is the biggest hospital in the state.
The department said the number of people tested so far has been reduced from 4,200 on Friday to 1,650 on Sunday.
The rest of the county has had to reduce the number tested to fewer than 400.
In Miami, which has seen more than 100 cases of the virus, the number has dropped from 1,400 on Friday, when the outbreak began, to 1