If you're looking for a flu shot, don't try the health departments in Hillsborough, Pinellas and Pasco counties.
All three departments have run out of vaccine.
The state will send more vaccine to local departments next week, but only a small number of doses.
Most people get flu shots elsewhere. But as flu vaccine became scarce, more people tried the health department.
"At the beginning of the season, we thought we had too much," said Julia Gill, epidemiology program manager at the Pinellas County Health Department.
The department ran out Thursday after administering 9,500 shots.
The state Department of Health learned Friday that it would receive 4,750 more doses from the federal government, which bought an extra 100,000 doses, state health spokeswoman Lindsay Hodges said.
The state plans to distribute some vaccine to each county based on size. Pinellas and Hillsborough each will get 150 doses; Pasco, Citrus and Hernando will get 80 apiece.
The state is asking local departments to give the shots to people at high risk for flu complications.
Flu vaccine began to run short after early outbreaks of the flu in several Western states. By Friday, widespread outbreaks were reported in 24 states.
Florida is one of 15 states reporting regional outbreaks. The Department of Health's newest flu reports, received Friday, do not change that status.
Federal officials also have been reporting more cases of severe symptoms than usual. In a typical year, influenza kills about 36,000 U.S. residents.
Gill advised following common-sense steps to keep from spreading the viral infection: Wash your hands, avoid touching your face, cover your mouth and nose with a tissue if you sneeze or cough, and stay home when you are sick.